 Wed Oct 11 09:37:30 2023, TD, Wednesday 11 October 48x
|
10.00 Water flow & temp OK
Power ON
All system wide checks OK
CAEN N1419ET ch 2 - all outputs non-floating ( internal LK fitted )
Standard coaxial HV cable chained to aida12, aida03 & aida11
aida04 LK1 ( local gnd ) fitted
ground cable from aida04 adaptor PCB ground to aida12 to aida02
aida03 LK3 ( PCB gnd ) fitted
BNC PB-5
amplitude 10.0V
attenuation x10
decay time 1ms
polarity -
frequency 25Hz
test + cable and test + chain removed
test - direct from PB-5 to aida02 *only*
DSSSD bias -120V -6.105uA - attachment 1
FEE64 tempweratures OK - attachment 2
slow comparator 0x64
ADC data item stats - attachment 3
Note
aida04 asic #1 u/s
ASIC mezzanine to be replaced
aida10 asic #4 v. high rates observed
see https://elog.ph.ed.ac.uk/AIDA/901 attachment 45
ASIC/cable/wafer issue ?
rate ~ 1600Hz observed for aida02 - pulser
All other rates 0Hz
per FEE64 Rate spectra - attachment 4
aida02 1.8.L pulser peak width 137 ch FWHM
1.8.W spetcra 20us, 200us & 2ms FSR - attachments 5-10
slow comparator 0x64 -> 0xf
ADC data item stats - attachment 11
per FEE64 Rate spectra - attachments 12 & 13
p+n rates entirely dominated by hot channels, otherwise rates ~0Hz
n+n rates ~ 200-300Hz/channel
slow comparator 0xf -> 0xa
ADC data item stats - attachment 14
per FEE64 Rate spectra - attachments 15-17
p+n rates aida12, aida03 & aida11 entirely dominated by hot channels, otherwise rates ~0Hz
p+n rates aida10, aida01 & aida09 ~500-1000Hz/channel
n+n rates ~ 2000-3000Hz/channel
11.25 Extend HV chain from aida11 to aida09
ADC data item stats - attachment 18
significant decrease in aida09 rate
1.8.W spectra 2ms FSR - attachments 19 & 20
significant improvement in aida09 1.8.W noise
aida02 1.8.L pulser peak width 165 ch FWHM ( slow comparator 0xa ), 127 ch FWHM ( 0xf )
12.00 Extend HV chain from aida09 to aida01 & aida10
slow comparator 0xf
ADC data item stats - attachment 21
per FEE64 Rate spectra - attachment 22
1.8.W spectra 2ms FSR - attachments 23-26
significant improvement in aida01 & aida10 1.8.W noise
aida02 1.8.L pulser peak width 127 ch FWHM ( 0xf )
12.35 slow comparator 0xf
ADC data item stats - attachment 27
per FEE64 Rate spectra - attachment 28
slow comparator 0xa
ADC data item stats - attachment 29
per FEE64 Rate spectra - attachment 30
slow comparator 0x9
ADC data item stats - attachment 31
per FEE64 Rate spectra - attachment 32 & 33
slow comparator 0x8
ADC data item stats - attachment 34
per FEE64 Rate spectra - attachment 35
slow comparator 0x7
ADC data item stats - attachment 36
per FEE64 Rate spectra - attachment 37
slow comparator 0x6
ADC data item stats - attachment 38
per FEE64 Rate spectra - attachment 39
slow comparator 0x5
ADC data item stats - attachment 40
per FEE64 Rate spectra - attachment 41
16.55 Background alpha 3*L & 3*W ( 20us FSR ) spectra - attachments 42 & 43
Slow comparator 0xf
Waveform threshold 7000 ( - polarity ), 9000 ( + polarity )
17.00 DSSSD bias -120V -7.125uA - attachment 44
aida02 1.8.L ( n+n Ohmic side strip ) pulser peak width as function of DSSSD bias
Bias I_l FWHM Centroid
(V) (uA) (ch) (ch)
-120 -7.125 124.8 43090
-140 -7.230 124.5 43092
-160 -7.370 120.2 43093
-180 -7.570 120.0 43095
-100 -7.020 143.8 43089
-80 -6.820 continuum/no peak
-150 -7.300 122.6 43093
DSSSD bias -150V -7.280uA
aida02 *.*.L spectra - attachments 45-48
All channels have similar pulser peak widths to 1.8.L
|
|
Tue Oct 10 08:38:37 2023, TD, Tuesday 10 October 40x
|
09.38 Water flow & temp OK
Power ON
All system wide checks OK
DSSSD HV +120V +5.585uA - attachment 1
CAEN N1419ET grounded output ( internal LK fitted ) plus ThorLabs inline filter
standard coaxial cable to aida04, no HV daisy chain aida12, aida03 & aida11
aida03 LK3 fitted
aida11, aida03, aida12 LK1 fitted
test + & test - daisy chains removed
FEE64 temps OK - attachment 2
slow comparator 0x64
ADC data item stats - attachment 3
per FEE64 Rate spectra - attachments 4
1.8.W spectra - 200us FSR - attachments 5-8
test + to aida01 *only*
ADC data item stats - attachment 9
per FEE64 Rate spectra - attachment 10
aida01 1*L spectra - attachment 11
pulser peak width 1.8.L 141 ch FWHM
ThorLabs inline filter removed
ADC data item stats - attachment 12
per FEE64 Rate spectra - attachment 13
pulser peak width 1.8.L 136 ch FWHM
14.15 DSSSD HV +120V +6.610uA
Disconnect aida01 ribbon cable drain wire from adaptor PCB gnd
aida01 1.8.L pulser peak width 188 ch FWHM - amplitude/structure of noise does not change significantly but observe higher frequency components in addition
1.8.W p+n spectra - 20us FSR - attachment 14
15.20 Switch from HV + to HV - N1419ET ch 3 to ch 2
HV coaxial cable chain aida12, aida03, aida11, aida04 LK1 fitted
aida12, aida03 & aida11 LK1 removed
Connect aida01 ribbon cable drain wire to adaptor PCB gnd
DSSSD HV-120V -6.720uA - attachment 15
ADC data item stats - attachment 16
aida01 1.8.L pulser peak width 138 ch FWHM
1.8.W spectra - 20us FSR - attachments 17 & 18
Little observable difference between HV - and +, as expected
16.20 Jumper aida04 adaptor PCB gnd to aida12 adaptor PCB gnd
slow comparator 0x64 -> 0xf
ADC data item stats - attachment 20
per FEE64 Rate spectra - attachment 21 & 24
1.8.W spectra - 20us FSR - attachments 22 & 23
aida01 1.8.L pulser peak width 99 ch FWHM
17.00 Ground cable from aida04 gnd to aida12 gnd
ADC data item stats - attachment 25
per FEE64 Rate spectra - attachment 26 & 27
1.8.W spectra - 20us FSR - attachments 28 & 29
aida01 1.8.L pulser peak width 97 ch FWHM
17.20 Ground cable from aida04 gnd to aida12 gnd to aida02 gnd
slow comparator 0xf ~ 150keV
ADC data item stats - attachment 30
per FEE64 Rate spectra - attachment 31
1.8.W spectra - 20us FSR - attachments 32 & 33
1.8.W spectra - 200us FSR - attachments 32 & 33
aida01 1.8.L pulser peak width 85 ch FWHM ~ 65keV FWHM => 5s threshold 138keV
aida12 1.8.L pulser peak width 58 ch FWHM ~ 44keV FWHM => 5s threshold 93keV
aida02 1.8.L pulser peak width 133 ch FWHM ~ 100keV FWHM => 5s threshold 212keV
Rate spectra are consistent with these estimates, i.e. observe ~zero rate for p+n channels ( except hot channels ) and low ( ~100-200Hz rate per channel ) for n+n channels
p+n noise aida12, aida03, aida11 excellent
for aida10, aida01 & aida09 good - can probably be improved to match aida12 etc
significant improvement observed for n+n side
aida12 *.*.W spectra - attachments 34-37
per p+n FEE64 1.8.W spectra - 200us FSR - expanded scale - attachment 38 |
|
Mon Oct 9 14:29:12 2023, TD, Monday 9 October contd.
|
15.20 aida10 LK4 ( front f/p -> gnd ) fitted - investigate impact aida10 asic #4 edge channels
DSSSSD HV bias +100V >+50uA
breakdown MGR & Front F/P?
wafer?
cabling?
aida10 LK4 removed
DSSSD HV +120V +6.760uA stable - attachment 1 |
|
Mon Oct 9 09:03:10 2023, TD, Monday 9 October 50x
|
09.55 Water pressure and temp OK
Power on
All system wide checks OK
DSSSD HV +120V +5.600uA - attachment 1
CAEN N1419ET floating output
standard coaxial cable to aida04, HV daisy chain aida12, aida03 & aida11
aida03 LK1 & LK3 fitted
test + & - daisy chains removed
FEE64 temps OK - attachment 2
slow comparator 0x64
ADC data item stats - attachment 3
per FEE64 Rate spectra - attachments 4-6
1.8.W spectra - 20us & 200us FSR - attachments 7-10
11.00 CAEN N1419ET floating -> gnd output ( via internal LK )
standard coaxial cable to aida04
aida03 LK1 & LK3 fitted
test + daisy chain removed, test - daisy chain aida02 - aida04
DSSSD HV +120V +5.955uA - attachment 11
slow comparator 0x64
ADC data item stats - attachment 12
per FEE64 Rate spectra - attachments 13 & 14
1.8.W spectra - 200us FSR - attachments 15 & 16
Overall, significant improvement in extrinsic noise for both p+n and n+n sides
slow comparator 0xf
ADC data item stats - attachment 17
per FEE64 Rate spectra - attachment 18
11.50 LK1 fitted to aida12, aida03 & aida11
DSSSD HV +120V +6.030uA - attachment 19
slow comparator 0xf
ADC data item stats - attachment 20
1.8.W spectra - 200us FSR - attachments 21 & 22
Incremental improvement in extrinsic noise for both p+n and n+n sides
12.20 LK1 fitted to aida12, aida03 & aida11, HV daisy chain aida12, aida03 & aida11 removed
DSSSD HV +120V +6.125uA - attachment 23
slow comparator 0xf
ADC data item stats - attachment 24
1.8.W spectra - 200us FSR - attachments 25 & 26
Little observable difference
12.40 test - daisy chain removed
slow comparator 0xf
ADC data item stats - attachment 29
per FEE64 Rate spectra - attachments 30 & 31
1.8.W spectra - 200us FSR - attachments 32 & 33
Further improvement in extrinsic noise observed for both p+n and n+n sides
14.00 additional ThorLab inline filter added to HV coaxial to aida04
DSSSD HV +120V +6.505uA - attachment 34
slow comparator 0xf
ADC data item stats - attachment 35
per FEE64 Rate spectra - attachments 36
1.8.W spectra - 200us FSR - attachments 37 & 38
Little observable difference
14.15 DSSSD HV +140V +6.685uA - attachment 39
1.8.W spectra - 200us FSR - attachment 40
DSSSD HV +160V +6.765uA - attachment 41
1.8.W spectra - 200us FSR - attachment 42
additional detector HV to dep+30V ( 160V ) mkaes little difference to n+n noise
14.45 per FEE64 4.*.W spectra - 200us FSR
n+n aida02 aida04 - attachments 43 & 44
p+n aida10, aida01, aida09 - attachments 45-47
p+n aida12, aida03, aida11 - attachments 48-50
aida09 missing strips? cable?
aida10 large transients for edge strips |
|
Sun Oct 8 14:51:59 2023, TD, Sunday 8 October contd. 28x
|
Slow comparator 0xf
DSSSD HV +120V +6.400uA - attachment 3
per FEE64 Rate spectra - attachment 1
ADC data item stats - attachment 2
test + disconnected at start of chain aida10, aida1 ... aida12
ADC data item stats - attachment 4
per FEE64 Rate spectra - attachment 5
No difference observed
DSSSD HV +130V +6.455uA - attachment 7
DSSSD HV +160V +6.605uA - attachment 6
per FEE64 1.8.W spectra - 2ms FSR - attachments 8 & 9
per FEE64 Rate spectra - attachments 10 & 11
ADC data item stats - attachment 12
Depletion+30V bias = 160V - no change to n+n noise, increased noise more generally
17.30 power off, HV off
test + daisy chain removed from aida10, aida01 ... aida12
power on
slow comparator 0x64
DSSSD bias +120V +6.455uA - attachment 13
ADC data item stats - attachment 14
per FEE64 Rate spectra - attachments 15 & 16
1.8.W spectra - 20us & 200us FSR - attachments 17 & 18
extrinsic noise worse but restricyted to a few hot channels
slow comparator 0xf
per FEE64 Rate spectra - attachment 19
18.40 DSSD HV to aida04 ( standard coaxial cable ), N1419ET floating output
HV chain aida12, auda03, aida11
aida03 LK1 and LK3 fitted
slow comparator 0x64
DSSSD bias +120V +6.435uA - attachment 20
ADC data item stats - attachment 21
per FEE64 Rate spectra - attachments 22-24
1.8.W spectra - 200us FSR - attcahments 25 & 26
extrinsic noise worse esp. n+n Ohmic side
p+n rates dominated by hot channels |
|
Sun Oct 8 11:44:35 2023, TD, Sunday 8 October 50x
|
12.22 USB-controlled ac mains relay - interlock overidden
Water flow OK. Water temp 19 deg C OK.
Power on.
aida03 LK3 fitted
test + chaine to all p+n FEE64s
test - disconnected at EG&G Ortec 534 output and aida04 n+n FEE64 adaptor card
CAEN N1419ET floating output
Bias chain braid - aida11, aida03 & aida12, core aida04
Bias +60V +5.28uA stable - attachment 1
FEE64 temps OK - attachment 2
1.8.W spectra - 200us FSR - attachments 3 & 4
per FEE64 p+n 1.8.L spectra - attachment 5
aida01 pulser peak width 240 ch FWHM
Slow comparator 0x64
per FEE64 Rate spectra - attachment 6
p+n rates dominated by hot channels
ADC data item stats - attachment 7
12.58 Bias +100V +6.075uA stable - attachment 8
1.8.W spectra - 200us FSR - attachments 9 & 10
per FEE64 p+n 1.8.L spectra - attachment 11
aida01 pulser peak width 116 ch FWHM
Slow comparator 0x64
per FEE64 Rate spectra - attachment 12
n+n rates dominated by hot channels, no p+n hot channels
ADC data item stats - attachment 13
1.8.W spectra - 20us FSR - attachments 14 & 15
1.8.W spectra - 2ms FSR - attachments 16-19
Observe 100kHz extrinsic noise with 5kHz modulation
13.22 Bias +100V +5.995uA stable - attachment 20
13.36 Bias +100V +6.040uA stable - attachment 25
per FEE64 Rate spectra - attachment 21
n+n rates dominated by hot channels, no p+n hot channels
ADC data item stats - attachment 22
slow comparator 0x64 -> 0xf
per FEE64 Rate spectra - attachment 23
ADC data item stats - attachment 24
13.36 Bias +110V +6.175uA stable - attachment 30
slow comparator 0xf -> 0x64
1.8.W spectra - 2ms FSR - attachments 26 & 27
per FEE64 Rate spectra - attachment 29
aida02, aida04 & aida10 rates dominated by hot channels
ADC data item stats - attachment 28
13.36 Bias +120V +6.295uA stable - attachment 36
slow comparator 0x64
1.8.W spectra - 2ms FSR - attachments 33 & 34
per FEE64 p+n 1.8.L spectra - attachment 31
aida01 pulser peak width 120 ch FWHM
per FEE64 Rate spectra - attachment 32
aida02, aida04 & aida10 rates dominated by hot channels
ADC data item stats - attachment 35
15.07 aida03 LK1 fitted
Bias +60V +5.600uA stable
Bias +100V +6.260uA stabl
slow comparator 0x64
1.8.W spectra - 2ms FSR - attachments 37 & 38
per FEE64 p+n 1.8.L spectra - attachment 40
aida01 pulser peak width 115 ch FWHM
per FEE64 Rate spectra - attachment 39
aida02, aida04 & aida10 rates dominated by hot channels
ADC data item stats - attachment 41
DSSSD HV - attachment 42
per FEE64 Rate spectra - attachment 39
aida02, aida04 & aida10 rates dominated by hot channels
ADC data item stats - attachment 41
|
|
Tue Oct 3 10:16:06 2023, TD, nnrpi2 scripts
|
pi@raspberrypi:~ $ cat ./caen_screen.sh
if ! screen -list | grep -q "caenhv"; then
screen -f -S caenhv /dev/ttyACM0 9600
else
screen -x caenhv
fi
pi@raspberrypi:~ $ cat ./check_usbs.sh
#!/bin/bash
declare -A NAMEMAP
NAMEMAP[FTDI_Chipi-X_FT2LC9OO]="BNC PB-5 Pulser"
NAMEMAP[CAEN_SPA_NIM_Desktop_HV_Power_Supply]="CAEN HV Supply"
NAMEMAP[FTDI_USB__-__Serial]="CAEN NIM Crate"
NAMEMAP[FTDI_FT232R_USB_UART_A502KOX3]="AIDA PSU Relay"
#for sysdevpath in $(find /sys/bus/usb/devices/usb*/ -name dev); do ( syspath="${sysdevpath%/dev}"; devname="$(udevadm info -q name -p $syspath)"; [[ "$devname" == "bus/"* ]] && exit; eval "$(udevadm info -q property --export -p $syspath)"; [[ -z "$ID_SERIAL" ]] && exit; echo "/dev/$devname - $ID_SERIAL"; ); done
for sysdevpath in $(find /sys/bus/usb/devices/usb*/ -name dev); do (
syspath="${sysdevpath%/dev}"
devname="$(udevadm info -q name -p $syspath)"
[[ "$devname" == "bus/"* ]] && exit
[[ "$devname" != *"tty"* ]] && exit
eval "$(udevadm info -q property --export -p $syspath)"
[[ -z "$ID_SERIAL" ]] && exit
echo "/dev/$devname - $ID_SERIAL - ${NAMEMAP[$ID_SERIAL]}" )
done |
|
Tue Oct 3 09:14:59 2023, TD, Tuesday 3 October
|
09.45 Power up
10.15 Bias +60V +5.95uA
10.22 Bias +60V +5.60uA
10.21 Bias +100V +21.1uA unstable
10.27 Bias +80V +10.1uA unstable
10.37 Bias + 60V +5.70uA stable
11.02 Bias +60V +5.78uA stable
11.22 CAEN N1419ET floating output ( internal LK removed )
Bias +100V +6.35uA
11.26 Bias +100V +10.59uA slowly increasing
11.39 Bias +100V +10.39uA unstable
Slow comparator 0x64 observe high ADC data item stats for aida10 & aida12 - attachment 1 - expected rate 25Hz x 64 = 1600 - problem with this wafer and/or adaptor PCBs?
N.B. aida04 asic #1 is u/s and running at very high rates
N.B. rates in aida10 & aida12 dominated by a few hot channels ( not the usual suspects ) - attachment 2
12.00 Bias +100V +13.0uA unstable
12.20 Bias +100V 12.535uA unstable |
|
Mon Oct 2 14:03:42 2023, TD, Monday 2 October
|
15.00 DSSSD bias +60V +6.44uA - breakdown above c. 60V, bias +100V leakage current +20-30uA
Slow comparator 0xa
aida03 LK3 fitted
CAEN N1419ET grounded outputs
HV#1 core aida04. braid aida10, aida1 & aida 9
BNC PB-5
Amplitide 10.0V
Attenuation x10
Decay time 1ms
Polarity +
Tail
Frequency 25Hz
test +/ test - daisy chains connected
test - disconnected at EG&G Ortec 534 output |
|
Sun Oct 1 12:38:56 2023, TD, Sunday 1 October 13x
|
12.50 Power up
All system wide checks OK
per FEE64 p+n 1.8.W spectra 20us FSR - attachments 3-4
per FEE64 p+n 1,8.L spectra - attachment 6
aida01 pulser peak width 15 ch FWHM
per FEE64 Rate spectra - attachment 5
BNC PB-5 pulser
Amplitude 10.0V
Attenuation x10
Decay 1ms
Frequency 25Hz
Polarity + ( n+n Ohmic test input from EG&G Ortec 534 Sum & Invert Amplifier not connected )
Clamp ON
ASIC settings 2021Apr29-13-16-00
slow comparator 0x64
FEE64 temperatures OK - see attachment 1
ADC data item stats OK - see attachment 2 |
|
Sat Sep 30 16:37:06 2023, TD, Honeywell HSS-DPS fault
|
The Honeywell HSS-DPS dew point sensor indicator ( red LED ) is flashing c. 0.5Hz indicating humiidity > 90+/-3 %
Hanna HI9565 report d.p. 8.3 deg C, RH 36%, temperature 25 deg C
S4 area coolant water cntrols indicate water temperature 19 deg C. No evidence of condensation on AIDA coolant manifold.
Sensor fault? |
|
Sat Sep 30 12:14:52 2023, TD, Satuurday 30 September 10x
|
12.54 Power up
All system wide checks OK
per FEE64 p+n 1.8.W spectra - attachments 5-10
20us, 200us and 2000us FSR
per FEE64 p+n 1,8.L spectra - attachment 3
aida01 pulser peak width 15 ch FWHM
per FEE64 Rate spectra - attachment 4
BNC PB-5 pulser
Amplitude 10.0V
Attenuation x10
Decay 1ms
Frequency 25Hz
Polarity + ( n+n Ohmic test input from EG&G Ortec 534 Sum & Invert Amplifier not connected )
Clamp ON
ASIC settings 2021Apr29-13-16-00
slow comparator 0x64
FEE64 temperatures OK - see attachment 2
ADC data item stats OK - see attachment 1
MSL type BB18 24cm c 8cm DSSSD 3208-3/-21/-22
p+n junction side - 21 Ohm resistnace between bias pins
n+n Ohmic side - 152 Ohm resistance between bias pins
=> all bias bond wires OK |
|
Thu Sep 28 16:03:40 2023, TD, Thursday 28 September 10x
|
17.00 USB-controlled ac mains relay - no water interlock ( yellow ) LED
Water temperature ( station outside S4 entrance ) c. 19 deg C and pressure OK
Flow can be felt on rubber outflow pipe from water manifold
Failure of sensor or interlock box?
*** Bypass interlock
16.58 Power ON
17.05 FEE64 temperatures OK - see attachment
All system wide checks OK
per FEE64 p+n 1.8.W spectra - attachments 2-42021Apr29-13-16-00
per FEE64 p+n 1,8.L spectra - attachment 5
aida01 pulser peak width 15 ch FWHM
per FEE64 Rate spectra - attachment 6
BNC PB-5 pulser
Amplitude 10.0V
Attenuation x10
Decay 1ms
Frequency 25Hz
Polarity + ( n+n Ohmic test input from EG&G Ortec 534 Sum & Invert Amplifier not connected )
Clamp ON
ASIC settings 2021Apr29-13-16-00
slow comparator 0x64
17.28 FEE64 temperatures - attachment 7
all < 1 deg C difference cf. 17.05
ADC data item stats OK - attachment 8
19.06 FEE64 temperatures OK - attachment 9 |
|
Thu Aug 31 15:01:11 2023, TD, Test of CAEN N1419B - T9, STFC DL 7x
|
Noise test of CAEN N1419B in T9, STFC DL.
CAEN N1419B configured for floating output ( internal jumper removed ), +50V
DSO y: AC/1M x: 10us, 4us & 1us/div single shot/run
Some HF noise transients observed but amplitude c. 5mV p to p.Noise otherwise appears to be white << 5mV rms. |
|
Wed Aug 30 15:30:50 2023, TD, Test of AIDA ASIC mezzanines with FEE64s - summary 13x
|
Test of ( previously bench-tested OK ) AIDA ASIC mezzanines using FEE64 nnlycca5 ( MAC d8:80:39:41:d7:c3 )
AIDA test station STFC DL, T9 - see attachments 12-13
Pulser BNC PB-5
Amplitude 1.0V
Attenuation x1
Polarity +
Frequency 100Hz
Tail pulse, decay time 1ms
Delay 250ns (min)
ASIC settings 2021Jul12-14.50.48
Slow comparator 0x2f
Adaptor PCB - PJCS
FEE64 temperatures OK
Rate/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 ASIC mezzanine Pulser peak width Status
serial # (channels FWHM)
30.8.23 14:00 GOC-7226-1-11 13, 7, 11, 11 OK
30.8.23 15:15 GOC-7226-1-19 9, 7, 8, 8 OK Rate, HitRate, *.*.L, *.*.W spectra ( 20us FSR ) - see attachments 1-11
30.8.23 16:00 GOC-7226-1-37 8, 7, 8, 7 OK
30.8.23 16:30 GOC-7226-1-39 6, 8, 9, 8 OK
30.8.23 17:00 0213110101-0029 9, 7, 8, 7 OK
30.8.23 17:30 0216240101-0008 9, 7, 8, 7 OK
31.8.23 10:50 0216240101-0040 11, 8, 9, 8 OK
31.8.23 11:30 GOC-7226-1-31 9, 9, 9, 8 OK
31.8.23 11:50 GOC-7226-1-23 9, 8, 7, 7 OK
31.8.23 12:10 GOC-7226-1-34 8, 7, 8, 7 OK
31.8.23 13:55 0261690101-0040 8, 7, 8, 7 OK
0261690101-0002, 0261690101-0012 by AIDA test bench, T9 Mezzanine book 2 indicates that these FEE64s have been tested OK ( 03/08 ) with a FEE64
6x untested FEE64 mezzanines in AIDA cupboard, T9 |
|
Mon Aug 21 13:17:54 2023, TD, Silena 7710 HV test - JCMB 21.8.23 11x
|
Silena 7710 - see attachment 1
Bias -60V
Without ac mains filter - attachments 2-6
DSO ch#1 AC/1M - y: 10mV/div x: 100ns, 200ns, 1us, 2us & 10us/div
With ac mains filter - attachments 7-11
( see https://elog.ph.ed.ac.uk/nToF/67 attachments 2 & 3 )
DSO ch#1 AC/1M - y: 10mV/div x: 100ns, 200ns, 1us, 2us & 10us/div
Conclusion - Claud Lyons Ltd STF Series Surge & Transient Power Filter makes little observable difference to HF noise transients observed |
|
Sun Aug 20 16:21:45 2023, TD, Silena 7710 HV test - JCMB 20.8.23 6x
|
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 |
|
Sat Aug 19 14:52:42 2023, TD, BNC PB-4 & BNC PB-5 pulser test - JCMB 18.8.23 21x
|
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 ). |
|
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.
|
|
Fri Aug 4 10:04:58 2023, TD, Friday 4 August contd. 17x
|
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 |
|