ID |
Date |
Author |
Subject |
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869
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Fri Jul 7 10:15:09 2023 |
TD | Test of AIDA FEE64 d8:80:39:41:f6:ee ( aida01 ) - HDMI connector replaced |
Test of AIDA FEE64 d8:80:39:41:f6:ee ( aida01 ) - HDMI connector replaced. Cooling plate fitted - no base plate.
ISOL test station STFC DL, T9
Pulser BNC PB-5
Amplitude 0.5V
Attenuation x1
Polarity +
Frequency 100Hz
Tail pulse, decay time 1ms
Delay 250ns (min)
ASIC settings 2019May22-10.19.28 - attachment 1
Slow comparator 0x80
Options - attachment 2
Adaptor PCB - PJCS
FEE64 temperatures OK - attachments 3
System wide checks - attachments 4-9
FEE64 module aida01 global clocks failed, 6
Clock status test result: Passed 3, Failed 1
FEE64 module aida01 failed
Calibration test result: Passed 3, Failed 1
Timestamp RAM values OK?
Statistics OK - attachments 10-11
Good WAVE events reported?
LEC spectra - attachments 12-15
Data observed for all channels of all ASICs - double peaking observed - may be due to incomplete FEE64 assembly? See attachment 17
Hit/HitRate spectra - attachment 16
OK *except*
1.2.L fast comparator missing
no WAVE data |
| Attachment 1: Screenshot_from_2023-07-07_10-23-46.png
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| Attachment 2: Screenshot_from_2023-07-07_10-23-41.png
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| Attachment 3: Screenshot_from_2023-07-07_09-45-39.png
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| Attachment 4: Screenshot_from_2023-07-07_09-46-06.png
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| Attachment 5: Screenshot_from_2023-07-07_09-46-54.png
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| Attachment 6: Screenshot_from_2023-07-07_09-46-58.png
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| Attachment 7: Screenshot_from_2023-07-07_09-47-01.png
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| Attachment 8: Screenshot_from_2023-07-07_09-48-29.png
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| Attachment 9: Screenshot_from_2023-07-07_09-48-34.png
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| Attachment 10: Screenshot_from_2023-07-07_09-48-00.png
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| Attachment 11: Screenshot_from_2023-07-07_09-48-08.png
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| Attachment 12: Screenshot_from_2023-07-07_10-34-10.png
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| Attachment 13: Screenshot_from_2023-07-07_10-34-42.png
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| Attachment 14: Screenshot_from_2023-07-07_10-35-09.png
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| Attachment 15: Screenshot_from_2023-07-07_10-35-37.png
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| Attachment 16: Screenshot_from_2023-07-07_10-36-11.png
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| Attachment 17: Screenshot_from_2023-07-07_10-50-22.png
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870
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Fri Jul 7 10:52:34 2023 |
TD, PJCS | Test of AIDA FEE64 d8:80:39:42:0d:0b ( aida03 ) - ASIC mezzanine replaced |
Test of AIDA FEE64 d8:80:39:42:0d:0b ( aida03 ) - ASIC mezzanine replaced
ISOL test station STFC DL, T9
Pulser BNC PB-5
Amplitude 1.0V
Attenuation x1
Polarity +
Frequency 100Hz
Tail pulse, decay time 1ms
Delay 250ns (min)
ASIC settings 2019May22-10.19.28
Slow comparator 0x80
Adaptor PCB - PJCS
FEE64 temperatures OK - attachments 1
System wide checks OK - attachments 2-5
Statistics OK - attachments 6-7
Hit/HitRate spectra OK - attachment 8
LEC spectra - attachments 9-12
Data observed for all channels of ASIC #1, 3, & 4
Data observed (double peaks) ASIC#2 channels 4-7 & 12-15, no data observed channels 0-3 & 8-11 - ASIC#2 address bit #2 set always ON? ASIC #2 fail or Mezzanine-FEE64
connection issue?
Typical pulser peak widths 15-17 channels FWHM ASIC #1-4
Wave spectra OK - attachments 13-16
19/7/23 removed mezzanine and cleaned contacts with ipa. cleaned FEE contacts. reassembled mezzanine to FEE and tested. ASIC 2 now ok. |
| Attachment 1: Screenshot_from_2023-07-06_11-02-57.png
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| Attachment 2: Screenshot_from_2023-07-06_11-03-52.png
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| Attachment 3: Screenshot_from_2023-07-06_11-04-14.png
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| Attachment 4: Screenshot_from_2023-07-06_11-04-18.png
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| Attachment 5: Screenshot_from_2023-07-06_11-04-22.png
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| Attachment 6: Screenshot_from_2023-07-06_11-04-57.png
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| Attachment 7: Screenshot_from_2023-07-06_11-05-15.png
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| Attachment 8: Screenshot_from_2023-07-06_11-07-18.png
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| Attachment 9: Screenshot_from_2023-07-06_11-12-31.png
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| Attachment 10: Screenshot_from_2023-07-06_11-14-24.png
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| Attachment 11: Screenshot_from_2023-07-06_11-16-55.png
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| Attachment 12: Screenshot_from_2023-07-06_11-18-49.png
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| Attachment 13: Screenshot_from_2023-07-06_11-20-09.png
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| Attachment 14: Screenshot_from_2023-07-06_11-20-36.png
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| Attachment 15: Screenshot_from_2023-07-06_11-21-03.png
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| Attachment 16: Screenshot_from_2023-07-06_11-21-40.png
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871
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Fri Jul 7 11:59:06 2023 |
TD | Test of AIDA FEE64 - summary |
Test of AIDA FEE64s
ISOL test station STFC DL, T9
Pulser BNC PB-5
Amplitude 1.0V
Attenuation x1
Polarity +
Frequency 100Hz
Tail pulse, decay time 1ms
Delay 250ns (min)
ASIC settings 2019May22-10.19.28
Slow comparator 0x80
Adaptor PCB - PJCS
FEE64 temperatures OK
System wide checks OK
Statistics OK
Hit/HitRate spectra OK
LEC spectra OK
Data observed for all channels of all ASIC #1-4
Pulser peak widths *.8.L
Wave spectra OK
Data observed for all channels of all ASIC #1-4
Date/time FEE64 MAC Pulser peak width Status
(channels FWHM)
6.7.23 17:50 d8:80:39:41:d8:2a 17,17,16,15 OK
6.7.23 11:20 d8:80:39:41:b4:0b 7,7,7,7 OK
6.7.23 10:03 d8:80:39:41:d0:0e 12,12,12,12 OK
5.7.23 15.31 d8:80:39:41:d7:cc 6,6,6,6 OK
5.7.23 14:04 d8:80:39:41:a0:71 12,11,11,12 OK Rate/Hitrate, *.*.L and *.*.W spectra - attachments 1-10
5.7.23 13:18 d8:80:39:42:0d:16 13,15,14,14 OK
5.7.23 12:43 d8:80:39:41:ee:71 17,17,15,16 OK
6.7.23 11:00 d8:80:39:42:0d:0b 17,15,16,15 https://elog.ph.ed.ac.uk/AIDA/870 Mezzanine replaced - ASIC #2 address bit #2 always on? ASIC #2 fail or mezzanine-FEE64
connection
issue?
7.7.23 09:46 d8:80:39:41:f6:ee https://elog.ph.ed.ac.uk/AIDA/869 HDMI replaced - not fully assembled - LEC fast comparator ASIC #1 channel #2 missing. ADC
does not
calibrate. HDMI issue?
OK FEE64s - attachment 11 |
| Attachment 1: Screenshot_from_2023-07-05_14-03-51.png
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| Attachment 2: Screenshot_from_2023-07-05_14-04-40.png
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| Attachment 3: Screenshot_from_2023-07-05_14-07-35.png
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| Attachment 4: Screenshot_from_2023-07-05_14-09-29.png
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| Attachment 5: Screenshot_from_2023-07-05_14-10-03.png
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| Attachment 6: Screenshot_from_2023-07-05_14-39-07.png
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| Attachment 7: Screenshot_from_2023-07-05_14-40-48.png
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| Attachment 8: Screenshot_from_2023-07-05_14-41-11.png
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| Attachment 9: Screenshot_from_2023-07-05_14-41-34.png
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| Attachment 10: Screenshot_from_2023-07-05_14-42-55.png
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| Attachment 11: 20230707_134745.jpg
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872
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Sun Jul 16 09:36:40 2023 |
TD | 15-16 July 2023 |
Saturday 15 July
Cooling water ON - temperature c. +19 deg C ( controls adjacent to S4 entrance )
Flow taps ON ( S4 )
Cannot see float in mechanical flow gauge - sediment?
USB-controlled ac mains relay flow interlock ON.
Flow vibration can be felt in cooling manifold and lines.
13x FEE64s installed - see attachment 2 ( courtesy NH )
FEE64 # Cable set #
1 1
2 2
3 3
4 4
5
6 6
7
8 8
9 9
10 5
11 11
12 7
15
10x FEE64s configured - update /MIDAS/config/TclHttpd/aidas-gsi@8015/startup.tcl - see attachment 1
ttyUSB1 aida01
ttyUSB3 aida12
ttyUSB4 aida02
ttyUSB6 aida03
ttyUSB7 aida04
ttyUSB9 aida11
ttyUSB10 aida09
ttyUSB12 aida10
ttyUSB13 aida08
ttyUSB15 aida06
Update /etc/dhcp/dhcpd.conf - correct MAC address aida09
from
host aida09 {
hardware ethernet d8:80:39:41:ee:01;
fixed-address 192.168.11.9;
option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida09";
}
to
host aida09 {
hardware ethernet d8:80:39:41:ee:10;
fixed-address 192.168.11.9;
option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida09";
}
5x MACBs installed - see attachment 3
Note configuration setting 0x0 for all 5x MACBs ( cf. 0x3 per https://elog.ph.ed.ac.uk/DESPEC/517 )
17.30 System wide checks - see attachments 4-7
OK *except* aida09 clock and WR decoder errors
FEE64 temperatures OK - see attachment 8
Sunday 16 July
11.30 Restart
FEE64 temperatures OK - attachment 9
System wide checks - attachments 10-15
aida09 clock errors - no WR timestamp
aida09 WR status 0xd - attachments 16-18
Local controls aida01 cf. aida09 - attachments 19-20
status register 0xf cf. 0x4
BuTIS interface control 0x3 cf. 0x0
14.00 ASIC settings 2021Apr29-13-16-00
slow comparator 0x64
FEE64s 1, 3, 9, 10, 11, 12 + input polarity
FEE64s 2, 4, 6, 8 - input polarity
BNC PB-5 pulser
amplitude 1.0V
attenuation x1
tail pulse
tau_d 1ms
frequency 100Hz
polarity +
EG&G Ortec 534 Sum & Invert Amplifier
to provide - polarity test inputs
Test + and - signals daisy-chained to FEE64s - end of daisy-chain terminated by 50 Ohms.
Adaptor PCB
AIDA Half Rev B 180623 fitted FEE64s 1, 2, 3, 4, 9, 10, 11, 12
*all* LKs fitted
AIDA Half Rev A 120418 fitted FEE64s 6, 8
*no* LKs fitted
No drain wire connections from adaptor PCB to FEE64 cooling plate fitted
per FEE64 rate spectra - attachment 21
p+n FEE64 1.8.L spectra - attachments 22-23
aida01 1.8.L pulser peak width 15 ch FWHM
n+n FEE64 1.8.L spectra - attachments 24-25
double peak spectra
p+n FEE64 1.8.W spectra 20us FSR - attachments 26-28
n+n FEE64 1.8.W spectra 20us FSR - attachments 29-31
Observe significantly higher noise for rev A adaptors
No data observed for aida09
aida01 2.5.* data missing
FEE64 statistics aida01, aida09, good events, ADC data, pause, resume, disc, correlation & WR 48-63 - attachments 32-40 |
| Attachment 1: startup.tcl
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Setting BGColor "BlanchedAlmond"
Setting TextColor "red"
Setting ProjectName AIDA
Setting ProjectImage AIDA.gif
Setting ProjectURL "http://npg.dl.ac.uk/NPG/Projects/Fair.html"
Setting Option1Name STFC
Setting Option1URL "stfc.ac.uk"
Setting Option1Image stfc.jpg
# global MessageLoggerServerHost
# set MessageLoggerServerHost nndhcp077.dl.ac.uk
# package require MessageLoggerClient
# Setting Option3Name "Elog Server"
# Setting Option3URL "http://nndhcp077.dl.ac.uk:8080/DataAcq/"
# Install required services
if {![namespace exists ::AIDA]} {namespace eval ::AIDA {puts "created namespace ::AIDA"}}
# set ::AIDA::TestMode 1
global SpectrumServerHost
set SpectrumServerHost aidas
package require XAIDAAccessClient ;# for Client end - ie AIDA server workstation sets MIDAS_XAIDAAccessClient_Exists (SOAP)
package require XAD9252AccessClient ;# for Client end - ie AIDA server workstation sets MIDAS_XAD9252AccessClient_Exists (SOAP)
namespace eval DataAcquisition {
variable PROJECT AIDA
variable ACQSERVERS
set ACQSERVERS [list aida01 aida02 aida03 aida04 aida06 aida08 aida09 aida10 aida11 aida12]
variable ACQSERVER [first $ACQSERVERS]
variable DataTransferStreams; set DataTransferStreams 2
# set ::DataAcquisition::EnableMerger 1
# set ::DataAcquisition::EnableTape 1
variable RDOGo 0
}
namespace eval AIDA {
variable ModuleMenu; set ModuleMenu $::DataAcquisition::ACQSERVERS
variable TSMaster; set TSMaster aida01
variable FEE64 [first $ModuleMenu]
variable ConfigBase; set ConfigBase [file join $env(MIDASBASE) config TclHttpd]
}
Setting DataBaseRoot "/MIDAS/DB"
package require DataBaseAccessServer
package require NetVarsServer 1.1
package require SigTaskServer
# package require MemSasServer
# Install services for Run Control
namespace eval $::DataAcquisition::PROJECT {
variable DBRootName [file join EXPERIMENTS AIDA]
variable DBNodeBase 2012
}
package require AIDARunControl
# package require TapeServer
# package require MergerControl
# package require MERGERunControl
Setting Option7Name "Project Home Page"
Setting Option7URL "http://npg.dl.ac.uk/NPG/Projects/Fair.html"
Setting Option8Name "Server Software Home Page"
Setting Option8URL "http://npg.dl.ac.uk/MIDAS/download/WebServices.html"
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873
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Sun Jul 16 14:20:31 2023 |
TD | Sunday 16 July contd. |
15.20 All ERNI pins of aida01 adaptor PCB OK => FEE64 #1 ASIC #2 channel #5 issue faulty test C? faulty ASIC channel?
Fitted drain wire from aida06 & aida08 adaptor PCBs to FEE64 cooling plates
n+n FEE64 1.8.W spectra 20us FSR - attachments 1-2
p+n FEE64 1.8.W spectra 20us FSR - attachments 3
p+n FEE64 1.8.L spectra - attachment 4
aida01 1.8.L pulser peak width 15 ch FWHM
n+n FEE64 1.8.L spectra - attachment 5
double peak spectra
Significant improvement in noise for aida06 & aida08 but still not as good as aida02 & aida04. Some additional extrinsic noise observed for aida02 & aida04.
No change in 1.8.L spectra
n+n FEE64 1.8.W spectra aida02 200us FSR, other FEE64s 20us FSR - attachments 6
baseline sinusoid observed - 4T = 320 samples = 64us = 15.6kHz
15:50 BNC PB-5
switch polarity + to -
switch BNC cables from BNC PB-5 and EG&G Ortec 534 outputs for test +/-
Attachments 7-8
baseline sinusoid observed for p+n *not* n+n FEE64 1.8.W spectra
suggests issue is EG&G Ortec 534
Restore original cabling
16.55 Swap aida09 HDMI cable from MACB #4 port 1 to MACB #5 port 1 - power cycle and restart - no change - aida09 clock not locked
Replace aida09 HDMI with *new* HDMI cable to MACB # 4 port 1 - power cycle and restart - aida09 clock locked
FEE64 temperatures OK - attachment 9
System wide checks - attachments 10-15
OK *except* cannot calibrate aida12 ADCs
per FEE64 rate spectra - attachment 16
p+n FEE64 1.8.L spectra - attachments 17
aida01 1.8.L pulser peak width 15 ch FWHM
n+n FEE64 1.8.L spectra - attachments 18
double peak spectra
p+n FEE64 1.8.W spectra 20us FSR - attachments 19-20
n+n FEE64 1.8.W spectra 20us FSR - attachments 21-22
17.10 n+n FEE64 1.8.W spectra 200us FSR
BNC PB-5 decay time 50us - attachment 23
BNC PB-5 decay time 1ms - attachment 24
18.05 ADC data item stats
slow comparator 0x64 -> 0xa
BNC PB-5 pulser frequency 100Hz so expect rate of ADC data items per FEE64 to be c. 6.4kHz
attachment 25 - aida06 & aida08 ground from FEE64 cooling plate to adaptor PCB fitted, test - connected to aida02, aida04, aida06 & aida08
attachment 26 - aida06 & aida08 ground from FEE64 cooling plate to adaptor PCB fitted, test - disconnected from aida02, aida04, aida06 & aida08
attachment 27 - aida06 & aida08 ground from FEE64 cooling plate to adaptor PCB not fitted, test - disconnected from aida02, aida04, aida06 & aida08
Rev A adaptors require grounding (as expected). Output of EG&G Ortec 534 produces c. 15kHz sinsusoid at test input - cable length/capacitative load?
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874
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Sat Jul 22 08:17:48 2023 |
TD | Saturday 22 July |
09.20 CAEN N1419ET
Floating outputs
Channel #3 + polarity, Channels #0-2 - polarity
Channel #3 - HV cable #1
+ bias - core aida04, braid aida12, LK1 ( HV local ground ) fitted aida12, aida03, aida11
bias bonds aida01 and aida09 probably broken
aida03 LK3 ( DSSSD PCB ground ) fitted
AIDA Half rev A adaptor PCBs aida06 & aida08 - not connected to ribbon cable/test/HV
DSSSD #1 - adaptor PCB ribbon cable drain wires connected to respective adaptor PCB ground
DSSSD #2 ( not installed ) adaptor PCB ribbon cable and ribbon cable drain wires floating
AIDA Half rev B adaptor PCBs DSSSD#1 - FEE64 cooling plate - adaptor PCB ground *not* connected
AIDA Half rev A adaptor PCBs aida06 & aida08 - not connected to ribbon cable/test/HV - FEE64 cooling plate - adaptor PCB ground fitted
ground to AIDA support frame *not* connected
test + / test - *not* connected
DSSSD#1 3208-3/-21/-22
bias +120V leakage current +17.13uA - attachments 1-14
per FEE64 1.8.W spectra - 200us FSR - attachments 1-2
per FEE64 1.8.W spectra - 20us FSR - attachments 3-4
bias +100V leakage current +8.35uA - attachments 15-17
per FEE64 1.8.W spectra - 200us FSR
bias +0V leakage current +0uA - attachments 18-20
per FEE64 1.8.W spectra - 200us FSR
14.25 bias +100V leakage current +10.83uA - attachments 21-22
per FEE64 1.8.W spectra - 200us FSR
CAEN channel #3 cable moved from cable tray to floor
14.50 bias +100V leakage current +11.15uA - attachments 23-24
per FEE64 1.8.W spectra - 200us FSR
CAEN N1419ET moved to Weiner NIM bin LHS 19" rack channel #3 cable across floor to AIDA stand
HV cables channels #0-2 disconnected |
| Attachment 1: Screenshot_from_2023-07-22_09-17-21.png
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| Attachment 2: Screenshot_from_2023-07-22_09-17-06.png
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| Attachment 26: Screenshot_from_2023-07-22_14-50-07.png
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875
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Sun Jul 23 08:50:48 2023 |
TD | Sunday 23 July |
09.50 Cooknell HV2
2x + polarity, grounded HV channels
+ bias - core aida04, braid aida12, LK1 ( HV local ground ) fitted aida12, aida03, aida11
bias bonds aida01 and aida09 probably broken
aida03 LK3 ( DSSSD PCB ground ) fitted
AIDA Half rev A adaptor PCBs aida06 & aida08 - not connected to ribbon cable/test/HV
DSSSD #1 - adaptor PCB ribbon cable drain wires connected to respective adaptor PCB ground
DSSSD #2 ( not installed ) adaptor PCB ribbon cable and ribbon cable drain wires floating
AIDA Half rev B adaptor PCBs DSSSD#1 - FEE64 cooling plate - adaptor PCB ground *not* connected
AIDA Half rev A adaptor PCBs aida06 & aida08 - not connected to ribbon cable/test/HV - FEE64 cooling plate - adaptor PCB ground fitted
ground to AIDA support frame *not* connected
test + / test - *not* connected
DSSSD#1 3208-3/-21/-22
bias +100V leakage current +8.7uA - attachments 1-11
per FEE64 1.8.W spectra 20us & 200us FSR
09.58 + bias - core aida04, braid aida12, LK1 ( HV local ground ) *not* fitted aida12 & fitted aida03, aida11
see attachments 12-14
17.00 aida04 *only* adaptor PCB connected to AIDA support frame
FEE64 ADC data item stats > 200k for all FEE64s
17.45 FEE64 spower cycled
CAEN N1419ET
Internal LK installed - all outputs grounded
bias +100V leakage current +12.2uA - attachments 15-19
+ bias - core aida04, braid aida12, LK1 ( HV local ground ) *not* fitted aida12 & fitted aida03, aida11 |
| Attachment 1: Screenshot_from_2023-07-23_09-52-37.png
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| Attachment 2: Screenshot_from_2023-07-23_09-52-24.png
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| Attachment 12: Screenshot_from_2023-07-23_09-58-06.png
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| Attachment 15: Screenshot_from_2023-07-23_17-44-45.png
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| Attachment 18: Screenshot_from_2023-07-23_17-43-25.png
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| Attachment 19: Screenshot_from_2023-07-23_18-01-34.png
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876
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Mon Jul 24 08:39:39 2023 |
TD | aida10 sys console output & aida10 options |
Options and system cosnole disagree about which version of the DataAcq program is in use? |
| Attachment 1: sys_console_aida10.txt
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... 28844 more lines ...
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| Attachment 2: Screenshot_from_2023-07-24_09-48-03.png
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877
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Mon Jul 24 08:54:48 2023 |
TD | Monday 24 July |
09.54 DSSSD#1 bias +100V leakage current +9.065uA
ADC data item stats
per FEE64 1.8.W spectra 20us & 200us FSR - see attachments 1-5
10.02 aida04 asic#1 u/s - see attachments 6-7
10.39 AIDA PSU#1 FEE64s 1,2 3, 4, 5, 6, 7, 8 -> 1, 3, 2, 4, 5, 6, 7, 8
ADC data item stats ( slow comparator 0x64 & 0x14 )
per FEE64 1.8.W spectra 20us & 200us FSR - see attachments 8-12
11.08 Test + connected aida09, 01, 10, 12, 3 & 11
SSSD#1 bias +100V leakage current +12.150uA
ADC data item stats ( slow comparator 0x14 )
per FEE64 rate, 1.8.L & 1.8.W spectra 20us FSR - see attachments 13-18
aida01 pulser peak width 134 ch FWHM |
| Attachment 1: Screenshot_from_2023-07-24_09-53-59.png
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| Attachment 2: Screenshot_from_2023-07-24_09-53-37.png
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| Attachment 4: Screenshot_from_2023-07-24_09-51-13.png
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| Attachment 7: Screenshot_from_2023-07-24_09-57-35.png
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| Attachment 10: Screenshot_from_2023-07-24_10-37-42.png
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878
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Mon Jul 31 09:43:37 2023 |
TD | Monday 31 July |
10.43 DSSSD bias +100V leakage current +7.550uA
+ bias - core aida04, braid aida12, LK1 ( HV local ground ) fitted aida03, aida11 *not* aida12
bias bonds aida01 and aida09 probably broken
aida03 LK3 ( DSSSD PCB ground ) fitted
ASIC settings 2021Apr29-13-16-00
slow comparator 0x64
FEE64s 1, 3, 9, 10, 11, 12 + input polarity
FEE64s 2, 4, 6, 8 - input polarity
BNC PB-5 pulser
amplitude 1.0V
attenuation x1
tail pulse
tau_d 1ms
frequency 100Hz
polarity +
EG&G Ortec 534 Sum & Invert Amplifier
to provide - polarity test inputs
Test + and - signals daisy-chained to FEE64s - end of daisy-chain terminated by 50 Ohms.
Adaptor PCB
AIDA Half Rev B 180623 fitted FEE64s 1, 2, 3, 4, 9, 10, 11, 12
AIDA Half Rev A 120418 fitted FEE64s 6, 8
AIDA Half rev A adaptor PCBs aida06 & aida08 - not connected to ribbon cable/test/HV
DSSSD #1 - adaptor PCB ribbon cable drain wires connected to respective adaptor PCB ground
DSSSD #2 ( not installed ) adaptor PCB ribbon cable and ribbon cable drain wires floating
AIDA Half rev B adaptor PCBs DSSSD#1 - FEE64 cooling plate - adaptor PCB ground *not* connected
AIDA Half rev A adaptor PCBs aida06 & aida08 - not connected to ribbon cable/test/HV - FEE64 cooling plate - adaptor PCB ground fitted
ground to AIDA support frame *not* connected
test + / test - *not* connected
per FEE64 1.8.W spectra 20 & 200us FSR - attachments 1-2, 14-15
per FEE64 p+n junction 1.8.L spectra - attachments 3-4
aida01 pulser peak width 136 ch FWHM ( note double peaking )
per FEE64 rate spectra - attachment 5
no test - input
adc data item stats - attachment 6
slow comparator 0x64
note aida04 asic #1 u/s
system wide checks - *all* OK - attachments 7-11
FEE64 temps OK - attachment 12
DSSSD bias - attachment 13
adc data item stats - attachment 16
slow comparator 0x14
12.28 LK1 ( local HV ground ) removed from aida03 & aida11 ( already removed from aida12 )
adc data item stats
per FEE64 1.8.W spetcra 20us FSR - attachments 17-19
DSSSD bias +100V leakage current +6.525uA
14.40 DSSSD bias +100V leakage current +6.230uA
LK1 ( local HV ground ) installed aida12 *only*
adc data item stats
per FEE64 1.8.W spectra 20us FSR
per p+n FEE64 1.8.L spectra - attachments 20-24
aida12 pulser peak width 196 ch FWHM
14.40 DSSSD bias +100V leakage current +11.485uA
LK1 ( local HV ground ) installed aida03, aida11, aida12
adc data item stats - slow comparator 0x64
per FEE64 rate spectra
per FEE64 1.8.W spectra 20us FSR
per p+n FEE64 1.8.L spectra - attachments 25-30
aida12 pulser peak width 135 ch FWHM ( note double peaking )
adc data item stats - slow comparator 0x14
per FEE64 rate spectra
p+n FEE64 rates dominated by edge strips
per FEE64 1.8.W spectra 200us FSR
per p+n FEE64 1.8.L spectra - attachments 31-35
17.15 Test - disconnected from pulser
Connect test daisy chain cable from aida04 to aida02 (50 OHm termination)
adc data item stats - slow comparator 0x14 & oxa
per FEE64 rate spectra - slow comparator 0x14
p+n FEE64 rates dominated by edge strips
per FEE64 1.8.W spectra 200us FSR
per p+n FEE64 1.8.L spectra - attachments 36-44
aida01 pulser peak width 89 ch FWHM
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| Attachment 1: Screenshot_from_2023-07-31_10-51-44.png
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879
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Tue Aug 1 08:50:36 2023 |
TD | Tuesday 1 August |
09.50 DSSSD bias +100V leakage current +9.255uA - attachment 2
FEE64 temperatures OK - attachment 1
All system wide checks OK
per FEE64 1.8.W spectra 20 & 200us FSR - attachments 3-6
per p+n FEE64 1.8.L spectra - attachments 7-8
aida01 pulser peak width 87 ch FWHM
adc data item stats - slow comparator 0x64, 0x14, 0xa - attachments 15, 14, 11
per FEE64 rate spectra - attachments 9-10, 12-13
from https://elog.ph.ed.ac.uk/AIDA/872
13x FEE64s installed - see attachment 2 ( courtesy NH )
FEE64 # Cable set #
1 1
2 2
3 3
4 4
5
6 6
7
8 8
9 9
10 5
11 11
12 7
15
Change AIDA PSU cabling from
#1 1-3 2-4 5-6 7-8
#2 9-10 11-12 13-14 15-16
to
#1 1-3 2-4 5-7 9-11
#2 6-8 10-12 13-14 15-16
DSSSD bias +100V leakage current +11.765uA
per FEE64 1.8.W spectra 200us FSR - attachments 16-17
per p+n FEE64 1.8.L spectra - attachments 18-19
aida01 pulser peak width 158 ch FWHM ( note double peaking )
adc data item stats - slow comparator 0x64, 0x14 - attachments 23, 21
per FEE64 rate spectra - attachments 20, 22
DSSSD bias +30V leakage current +35.8uA
13.35 DSSSD bias +100V leakage current +11.785uA
aida04 34-way cable #1 connected to ASIC #1 & 2 disconnected from adaptor PCB
per FEE64 1.8.W spectra 2000us FSR - attachments 26-27
adc data item stats - slow comparator 0x64, 0x14 - attachments 29-30
per FEE64 rate spectra - attachment 28
16.20 Install LK2 & LK4 aida12, aida03, aida11 ( front & rear field plate ground )
DSSSD over current ( 200uA @ c. 30V ) - high resistance short?
LK2 & LK4 installed aida12 *only* - OvC
LK2 & LK4 installed aida11 *only* - OvC
LK2 & LK4 installed aida3 *only* - OvC
LK2 installed aida3 *only* - OvC ( LK2 = rear field plate )
All front & rear field plate connections appear to provide a high resistance short to ground for detector bias. This may be related to issues observed biasing DSSSD via aida01 & aida09 - https://elog.ph.ed.ac.uk/AIDA/874
But why does it affect aida12 too? |
| Attachment 1: Screenshot_from_2023-08-01_09-50-08.png
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| Attachment 2: Screenshot_from_2023-08-01_09-49-53.png
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| Attachment 19: Screenshot_from_2023-08-01_12-02-40.png
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| Attachment 27: Screenshot_from_2023-08-01_13-33-12.png
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| Attachment 30: Screenshot_from_2023-08-01_13-30-50.png
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880
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Wed Aug 2 08:44:00 2023 |
TD | Wednesday 2 August |
09.40 Al snout electrically connected ( < 1 Ohm ) to Al gasket and Al base plate
Al snout electrically isolated ( > 20 MOhm ) from aida02 FEE64 adaptor PCB and AIDA support frame
FEE64 temperatures OK - attachment 1
DSSSD bias +100V leakage current +7.565uA - attachment 2
All system wide checks OK
Slow comparator 0x64
per FEE64 rate spectra - attachment 3
per p+n FEE64 1.8.L spectra - attachments 4-5
aida01 pulser peak width 134 ch FWHM
per FEE64 1.8.W spectra 200us FSR - attachments 6-7
ADC data item stats - attachment 8
Slow comparator 0x14
ADC data item stats - attachment 9
per FEE64 rate spectra - attachment 10
Ground Al base plate to aida02 FEE64 adaptor PCB - appears to be marginally worse than without ground
per p+n FEE64 1.8.L spectra - attachments 11-12
aida01 pulser peak width 120 ch FWHM
per FEE64 1.8.W spectra 200us FSR - attachments 13-14
per FEE64 rate spectra - attachment 15
ADC data item stats - attachment 16
11.48 DSSSD bias +100V leakage current +11.055uA
Ground Al base plate to AIDA support frame - appears to be significantly worse than without ground
per FEE64 1.8.W spectra 200us FSR - attachments 17-18
per p+n FEE64 1.8.L spectra - attachments 19-20
aida01 pulser peak width 150 ch FWHM
per FEE64 rate spectra - attachment 21
ADC data item stats - attachment 22
11.48 DSSSD bias +130V leakage current +35.05uA
Ground Al base plate to aida02 FEE64 adaptor PCB - additional bias makes no significant difference
per FEE64 rate spectra - attachment 23
per p+n FEE64 1.8.L spectra - attachments 24-25
aida01 pulser peak width 118 ch FWHM
per FEE64 1.8.W spectra 200us FSR - attachments 26-27
ADC data item stats - attachment 28
14.03 DSSSD bias +100V leakage current +10.7uA
Ground Al base plate to aida02 FEE64 adaptor PCB - re-check
per FEE64 1.8.W spectra 200us FSR - attachments 28-29
ADC data item stats - attachment 30
15.10 Add DSSSD HV cable from aida04 to aida02 - significantly worse
Ground Al base plate to aida02 FEE64 adaptor PCB - re-check
per FEE64 1.8.W spectra 200us FSR - attachments 31-32
ADC data item stats - attachment 33
15.37 Switch from - to + polarity detector HV
N1419ET from ch #3 to ch #2, all outputs non-floating
LK1 ( local HV ground )removed from aida12, aida03, aida11 - installed aida04
LK3 ( DSSSD PCB ground ) installed aida03 ( no change )
HV #1 core aida12, aida03, aida11 - braid aida04
test + chain aida9, aida01, aida10, aida12, aida03, aida11 - connected to BNC PB-5 pulser
test - chain aida04, aida02 - not connected to pulser
AIDA PSU cabling per https://elog.ph.ed.ac.uk/AIDA/879
HV cable aida04 to aida02 - removed
Ground Al base plate to aida02 FEE64 adaptor PCB - removed
FEE64 temperatures OK - attachment 35
DSSSD bias -100V leakage current -7.155uA - attachment 36
Slow comparator 0x14
per FEE64 rate spectra - attachment 37
per p+n FEE64 1.8.L spectra - attachments 38-39
aida01 pulser peak width 123 ch FWHM but note double peaking
per FEE64 1.8.W spectra 200us FSR - attachments 40-41
ADC data item stats - attachment 42
Slow comparator 0x64
ADC data item stats - attachment 43
Very similar performance to + polarity DSSSD HV tests
16.05 Add LK1 to aida02
DSSSD bias -100V leakage current -7.770uA
Slow comparator 0x14
per FEE64 1.8.W spectra 200us FSR - attachments 44-46
ADC data item stats - attachment 47
per FEE64 rate spectra - attachment 48
Improved noise for n+n FEE64s esp. aida04 |
| Attachment 1: Screenshot_from_2023-08-02_09-55-15.png
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| Attachment 34: Screenshot_from_2023-08-02_15-09-20.png
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| Attachment 35: Screenshot_from_2023-08-02_15-47-23.png
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| Attachment 36: Screenshot_from_2023-08-02_15-47-12.png
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| Attachment 37: Screenshot_from_2023-08-02_15-51-58.png
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| Attachment 38: Screenshot_from_2023-08-02_15-51-06.png
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| Attachment 39: Screenshot_from_2023-08-02_15-50-58.png
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| Attachment 43: Screenshot_from_2023-08-02_15-49-03.png
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| Attachment 44: Screenshot_from_2023-08-02_16-10-47.png
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| Attachment 45: Screenshot_from_2023-08-02_16-10-25.png
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| Attachment 46: Screenshot_from_2023-08-02_16-10-04.png
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| Attachment 47: Screenshot_from_2023-08-02_16-15-58.png
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| Attachment 48: Screenshot_from_2023-08-02_16-09-00.png
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881
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Wed Aug 2 15:39:52 2023 |
TD | Wednesday 2 August contd. |
16.22 Add LK1 to aida01
DSSSD bias -100V leakage current -7.950uA
Slow comparator 0x14
per FEE64 1.8.W spectra 200us FSR - attachments 2-3
ADC data item stats - attachment 4
per FEE64 rate spectra - attachment 1
Noise worse for n+n FEE64s esp. aida04
17.28 Ground Al base plate to aida02 FEE64 adaptor PCB - appears to be marginally worse than without ground
per p+n FEE64 1.8.L spectra - attachments 8-9
aida01 pulser peak width 116 ch FWHM
per FEE64 1.8.W spectra 200us FSR - attachments 10-11
per FEE64 rate spectra - attachment 6-7
ADC data item stats - attachment 5 |
| Attachment 1: Screenshot_from_2023-08-02_16-29-58.png
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| Attachment 2: Screenshot_from_2023-08-02_16-29-27.png
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| Attachment 3: Screenshot_from_2023-08-02_16-29-11.png
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| Attachment 4: Screenshot_from_2023-08-02_16-29-04.png
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| Attachment 5: Screenshot_from_2023-08-02_17-36-17.png
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| Attachment 6: Screenshot_from_2023-08-02_17-35-16.png
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| Attachment 7: Screenshot_from_2023-08-02_17-35-09.png
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| Attachment 8: Screenshot_from_2023-08-02_17-34-18.png
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| Attachment 10: Screenshot_from_2023-08-02_17-33-40.png
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| Attachment 11: Screenshot_from_2023-08-02_17-33-26.png
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882
|
Thu Aug 3 09:21:26 2023 |
TD | Thursday 3 August |
10.20 DSSSD bias +100V leakage current +6.565uA - attachment 1
All system wide checks OK - attachments 2-7
why is SYNC rollover target 0xe?
FEE64 temps OK - attachment 8
per FEE64 1.8.W spectra 20us FSR - attachments 9-10
slow comparator 0x64
per FEE64 rate spectra - attachment 11
ADC data item stats - attachment 12
slow compararator 0x14
ADC data item stats - attachment 13
11.10 Test + & test - cables disconnected at the outputs of the BNC PB-5 and EG&G Ortec 534
slow comparator 0xf p+n rates dominated by 'hot' channels *except* aida03 & aida09
per FEE64 rate spectra - attachment 14
ADC data item stats - attachment 15
slow comparator 0xa p+n rates high ( 100-200k )
per FEE64 rate spectra - attachment 16
ADC data item stats - attachment 17
slow comparator 0x14 p+n rates entirely due to 'hot' channels
per FEE64 rate spectra - attachment 18
per FEE64 1.8.W spectra 20us FSR - attachments 19-20
ADC data item stats - attachment 21
11.27 Remove ground cable from Al base plate to aida02 FEE64 adaptor PCB
slow comparator 0xf p+n rates entirely due to 'hot' channels
per FEE64 1.8.W spectra 20us FSR - attachments 22-23
per FEE64 rate spectra - attachment 25
ADC data item stats - attachment 24
slow comparator 0xa p+n rates high ( 30-130k ) but lower than previously
per FEE64 rate spectra - attachment 26
ADC data item stats - attachment 27
11.48 DSSSD bias +100V leakage current +7.845uA
Remove LK3 ( local HV ground middle Si wafer )
slow comparator 0xa p+n rates high ( 55-135k ) but increase in rates appears to be due to 'hot' channels
per FEE64 1.8.W spectra 20us FSR - attachments 28-30
per FEE64 rate spectra - attachment 31
ADC data item stats - attachment 32
CAEN N1419ET ch #2 output connected to Tek TDS 210 DSO - powered from relay #6
ch 1 - ac - HV braid
ch 2 - ac - HV core
ch # 2 OFF - attachment 33
ch # 2 + 50V 0.000uA - attachments 34-35
with additional ThorLabs filter
ch # 2 + 50V 0.000uA - attachment 39
ch 2 - dc, hi Z
test - attachments 36-37
test + attachment 38
12.45 Install ThorLabs filter HV core ( *no* filter for HV braid )
slow comparator 0xa p+n rates high ( 40-130k ) but p+n rates dominated by 'hot' channels *except* aida03, aida11, aida12 where rates are generally higher per strip
per FEE64 rate spectra - attachment 40
per FEE64 1.8.W spectra 20us FSR - attachments 41-42
ADC data item stats - attachment 43
14.55 Install ThorLabs filter HV braid ( filters for both HV core & braid )
slow comparator 0xa p+n rates high ( 50-150k ) two filters probably somewhat worse than one filter
per FEE64 rate spectra - attachment 46
per FEE64 1.8.W spectra 20us FSR - attachments 44-45
ADC data item stats - attachment 47
Overall, effect of ThorLabs filters appears to belimited. Perhaps not unexpected as FEE64 adaptor PCBs also have a HV RC filter.
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| Attachment 1: Screenshot_from_2023-08-03_10-16-46.png
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| Attachment 2: Screenshot_from_2023-08-03_10-16-35.png
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| Attachment 25: Screenshot_from_2023-08-03_11-27-29.png
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| Attachment 26: Screenshot_from_2023-08-03_11-35-30.png
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| Attachment 27: Screenshot_from_2023-08-03_11-34-14.png
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| Attachment 28: Screenshot_from_2023-08-03_11-58-34.png
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| Attachment 30: Screenshot_from_2023-08-03_11-57-17.png
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| Attachment 31: Screenshot_from_2023-08-03_11-56-40.png
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| Attachment 32: Screenshot_from_2023-08-03_11-56-19.png
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| Attachment 33: 20230803_120946.jpg
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| Attachment 40: Screenshot_from_2023-08-03_12-46-22.png
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| Attachment 41: Screenshot_from_2023-08-03_12-45-29.png
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| Attachment 42: Screenshot_from_2023-08-03_12-45-09.png
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| Attachment 43: Screenshot_from_2023-08-03_12-44-51.png
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| Attachment 44: Screenshot_from_2023-08-03_14-56-01.png
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| Attachment 45: Screenshot_from_2023-08-03_14-55-34.png
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| Attachment 46: Screenshot_from_2023-08-03_14-55-13.png
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883
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Thu Aug 3 14:16:12 2023 |
TD | Thursday 3 August contd. |
15.16 DSSSD bias +100V leakage current +8.415uA
ThorLabs filters removed
Test + & test - signals disconnected at outputs of BNC PB-5 and EG&G Ortec 534
aida02 & aida04 LK1 installed, aida01 LK3 not installed
aida03 LK3 installed
test + & test- daisy chains installed
HV daisy chain - core - aida12, aida03, aida11
HV daisy chain - braid - aida04
slow comparator 0xa p+n FEE64 rates high ( 50-125k )
per FEE64 rates - attachment 1
per FEE64 1.8.W spectra 200us FSR - attachments 2-3
adc data item stats - attachment 4
slow comparator 0xc p+n FEE64 rates OK ( 15-40k ) dominated by 'hot' channels, low per channel rates in aida11, aida03, aida12
per FEE64 rates - attachment 5-6
adc data item stats - attachment 7
slow comparator 0xf p+n FEE64 rates low ( 7-17k ) entirely dominated by 'hot' channels
per FEE64 rates - attachment 8
adc data item stats - attachment 9
slow comparator 0x14
per FEE64 rates - attachment 10-11
adc data item stats - attachment 12
slow comparator 0x19
per FEE64 rates - attachment 13
adc data item stats - attachment 14
slow comparator 0x1e
per FEE64 rates - attachment 15
adc data item stats - attachment 16
slow comparator 0x23
per FEE64 rates - attachment 17
adc data item stats - attachment 18
slow comparator 0x28
per FEE64 rates - attachment 19-20
adc data item stats - aattachment 21
Ignoring 'hot' channels, reduce rates to < 50Hz/channel for p+n slow comparator threshold 120-150keV and n+n slow comparator threshold 350-400keV
If we assume that this estimates the 5x sigma threshold => p+n sigma c. 27keV rms, 64keV FWHM and n+n sigma c. 75keV rms, 176keV FWHM
Given FEE64-DSSSD cable lengths, optimal p+n performance is c. 40-50keV FWHM so current tests begin to approach this - little extrinsic noise observed for preamp signals
We continue to observe significant ( though very much improved ) extrinsic noise for n+n strips so current noise performance could be improved by x2-3.
18.42 slow comparator 0x64
stats & histograms zero'd
DSSSD bias +100V leakage current +9.040uA |
| Attachment 1: Screenshot_from_2023-08-03_15-22-03.png
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| Attachment 2: Screenshot_from_2023-08-03_15-21-31.png
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| Attachment 21: Screenshot_from_2023-08-03_15-45-49.png
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884
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Fri Aug 4 09:07:08 2023 |
TD | Friday 4 August |
07.00 DAQ stopped
Overnight run for background alphas
10.07 FEE64 temperatures OK - attachment 1
DSSSD bias +100V leakage current +8.210uA - attachment 2
Stats - attachments 3-12
per FEE64 1.8.W spectra 200us FSR - attachments 21-22
per FEE64 rate spectra - attachment 23 |
| Attachment 1: Screenshot_from_2023-08-04_10-07-38.png
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| Attachment 2: Screenshot_from_2023-08-04_10-07-23.png
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| Attachment 3: Screenshot_from_2023-08-04_10-10-19.png
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| Attachment 4: Screenshot_from_2023-08-04_10-10-07.png
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| Attachment 5: Screenshot_from_2023-08-04_10-09-51.png
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| Attachment 6: Screenshot_from_2023-08-04_10-09-41.png
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| Attachment 7: Screenshot_from_2023-08-04_10-09-26.png
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| Attachment 8: Screenshot_from_2023-08-04_10-09-18.png
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| Attachment 9: Screenshot_from_2023-08-04_10-09-03.png
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| Attachment 10: Screenshot_from_2023-08-04_10-08-52.png
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| Attachment 11: Screenshot_from_2023-08-04_10-08-23.png
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| Attachment 12: Screenshot_from_2023-08-04_10-08-10.png
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| Attachment 13: Screenshot_from_2023-08-04_10-23-24.png
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| Attachment 14: Screenshot_from_2023-08-04_10-21-51.png
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| Attachment 15: Screenshot_from_2023-08-04_10-20-18.png
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| Attachment 16: Screenshot_from_2023-08-04_10-19-31.png
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| Attachment 17: Screenshot_from_2023-08-04_10-18-41.png
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| Attachment 18: Screenshot_from_2023-08-04_10-17-16.png
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| Attachment 19: Screenshot_from_2023-08-04_10-16-19.png
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| Attachment 20: Screenshot_from_2023-08-04_10-15-20.png
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| Attachment 21: Screenshot_from_2023-08-04_10-13-22.png
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| Attachment 22: Screenshot_from_2023-08-04_10-13-10.png
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| Attachment 23: Screenshot_from_2023-08-04_10-11-46.png
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885
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Fri Aug 4 10:04:58 2023 |
TD | Friday 4 August contd. |
10.45 Power cycle and reboot
DSSSD bias +100V leakage current +8.365uA
All system wide checks OK
Slow comparator 0x64
per FEE64 rate spectra - attachment 1
per FEE764 1.8.W spectra - attachments 16 & 17 ( ignore attachments 2 & 3 - bias off/low )
adc data item stats - attachment 4
slow comparator 0xf
per FEE64 rate spectra - attachment 5
adc data item stats - attachment 6
slow comparator 0xe
per FEE64 rate spectra
adc data item stats - attachment 7
slow comparator 0xd
per FEE64 rate spectra - attachment 8
adc data item stats - attachment 9
slow comparator 0xc
per FEE64 rate spectra - attachment 10
adc data item stats - attachment 11
slow comparator 0xb
per FEE64 rate spectra - attachment 12
adc data item stats - attachment 13
slow comparator 0xa
per FEE64 rate spectra - attachment 14
adc data item stats - attachment 15 |
| Attachment 1: Screenshot_from_2023-08-04_10-54-19.png
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| Attachment 2: Screenshot_from_2023-08-04_10-53-47.png
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| Attachment 3: Screenshot_from_2023-08-04_10-52-34.png
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| Attachment 4: Screenshot_from_2023-08-04_10-49-12.png
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| Attachment 5: Screenshot_from_2023-08-04_10-59-00.png
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| Attachment 6: Screenshot_from_2023-08-04_10-58-34.png
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| Attachment 7: Screenshot_from_2023-08-04_11-00-03.png
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| Attachment 8: Screenshot_from_2023-08-04_11-01-16.png
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| Attachment 9: Screenshot_from_2023-08-04_11-01-06.png
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| Attachment 10: Screenshot_from_2023-08-04_11-02-26.png
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| Attachment 11: Screenshot_from_2023-08-04_11-02-10.png
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| Attachment 12: Screenshot_from_2023-08-04_11-03-27.png
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| Attachment 13: Screenshot_from_2023-08-04_11-03-15.png
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| Attachment 14: Screenshot_from_2023-08-04_11-04-15.png
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| Attachment 15: Screenshot_from_2023-08-04_11-04-00.png
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| Attachment 16: Screenshot_from_2023-08-04_12-26-48.png
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| Attachment 17: Screenshot_from_2023-08-04_12-28-18.png
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886
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Wed Aug 9 14:40:28 2023 |
Carole, Nic, Jeroen | AIDA HV SUPPLY & PULSER TEST |
Tests with the HV supply (CAEN N1419ET) and Pulse Generator ( BNC PB-5 ) in the detector lab on the crate behind the DEGAS detectors, carried out the 9th August 2023
Both modules were plugged
Test 1: pulse generetor on 2 Hz
- DC, 50 ohm - HV OFF - attachment 1
- DC, 50 ohm - HV OFF, Zoom on the noise - attachment 2
- DC, 50 ohm - HV 50 V, Zoom on the noise - attachment 3
Test 2: HV supply Channel 1 - CORE and 2 - BRAID, pulse generator still on
- AC 1 Mohm - HV OFF - attachment 4
- AC 1 Mohm - HV 50 V - attachment 5
No differences were observed between crate OFF, HV OFF and HV 50 V. An important periodic noise (green on the pictures) was observed and was significantly smaller when unpluging the HV module from the crate. The thickness of the baseline noise seems to be comparable to entry 882, attachment 33-35.
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| Attachment 1: AIDA_PulserTest_0908_FullPulse.png
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| Attachment 2: AIDA_PulserTest_09.08_5mV_10us_HVOFF.png
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| Attachment 3: AIDA_PulserTest_0908_10mV_10us_50HV.png
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| Attachment 4: HV_0V_090823_1500_wPulser.png
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| Attachment 5: HV_-50V_090823_1500_wPulser.png
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887
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Sat Aug 19 14:52:42 2023 |
TD | BNC PB-4 & BNC PB-5 pulser test - JCMB 18.8.23 |
BNC PB-4 - see attachment 1
Amplitude 35,000
Attenuators all OUT
Risetime 50ns
Decay time 1ms
Tail pulse
Polarity +
Frequency 2Hz (min)
Delay min
DSO ch#1 DC/1M - y: 5mV/div x: 100ns, 200ns, 1us, 2us & 10us/div - attachments 2-6
BNC PB-5 - see attachment 7-9
Amplitude 1.0V
Attenuation x1
Decay time 1ms
Tail pulse
Polarity +
Frequency 2Hz (min)
Delay 250ns (min)
DSO ch#1 DC/1M - y: 5mV/div x: 100ns, 200ns, 1us, 2us & 10us/div - attachments 10-14
BNC PB-5 - see attachment 15-16
Amplitude 10.0V
Attenuation x10
Decay time 1ms
Tail pulse
Polarity +
Frequency 2Hz (min)
Delay 250ns (min)
DSO ch#1 DC/1M - y: 5mV/div x: 100ns, 200ns, 1us, 2us & 10us/div - attachments 17-21
Conclusion
BNC PB-5 significantly noisier than BNC PB-4. Results consistent with GSI tests https://elog.ph.ed.ac.uk/AIDA/886 , i.e. AIDA BNC PB-5 pulser at GSI *not* faulty.
BNC PB-5 operation with 10.0V/10x ( cf. 1.0V/x1 ) shows lower level of noise but still worse than BNC PB-4.
5mV transient at test input ( C_t = 0.7pF ) = 3.5fC = 80keV Si equivalent ( check 1V x 0.7pF = 0.7pC = 16MeV OK ). |
| Attachment 1: 20230818_120816.jpg
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| Attachment 2: 20230818_120856.jpg
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| Attachment 21: 20230819_160935.jpg
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888
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Sun Aug 20 16:21:45 2023 |
TD | Silena 7710 HV test - JCMB 20.8.23 |
Silena 7710 - see attachment 1
Bias -60V
DSO ch#1 AC/1M - y: 20mV/div x: 100ns, 200ns, 1us, 2us & 10us/div - attachments 2-6 |
| Attachment 1: 20230820_154822.jpg
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| Attachment 2: 20230820_154840.jpg
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| Attachment 3: 20230820_154855.jpg
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| Attachment 4: 20230820_154936.jpg
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| Attachment 5: 20230820_154947.jpg
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| Attachment 6: 20230820_154959.jpg
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