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ID |
Date |
Author |
Subject |
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315
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Thu May 13 23:58:05 2021 |
OH | Friday 14th May 00:00 - 08:00 | 00:00 OH Takes over.
PULSER SETTINGS
---------------------------
Pulse is ON
Positive Tail Pulse
Trigger Source is Internal Clock
Trigger Threshold is 3.5
Amplitude : 2.0 Volts
Rep Rate : 2.0 hZ
Delay : 250.0 ns
Fall Time : 1 ms
Attenuation : 1
Display is : Volts
Equivalent keV is : 200.0
Ramp Start at 0.01 Volts
Ramp Stop at 9.99 Volts
Ramp Start at 1.0 keV
Ramp Stop at 999.0 keV
Ramp Time is 60 seconds
# Ramp Cycles is 1
OK
0x210
p+n Thresholds 0xa (100keV)
n+n Threshold 0x20 (320keV)
01:00 System wide checks
Clock status ok
ADC calibration fail as expected (Waveforms off)
WR Errors
Base Current Difference
aida01 fault 0xf932 : 0xf933 : 1
aida02 fault 0x62ec : 0x62ed : 1
aida03 fault 0x8679 : 0x867a : 1
aida04 fault 0xf0e4 : 0xf0e5 : 1
aida05 fault 0x9db8 : 0x9dbf : 7
aida06 fault 0x7f18 : 0x7f19 : 1
aida07 fault 0xdd2c : 0xdd2d : 1
aida08 fault 0x1557 : 0x1558 : 1
White Rabbit error counter test result: Passed 8, Failed 8
Understand the status reports as follows:-
Status bit 3 : White Rabbit decoder detected an error in the received data
Status bit 2 : Firmware registered WR error, no reload of Timestamp
Status bit 0 : White Rabbit decoder reports uncertain of Timestamp information from WR
FPGA Errors
Base Current Difference
aida05 fault 0x0 : 0x2 : 2
FPGA Timestamp error counter test result: Passed 15, Failed 1
If any of these counts are reported as in error
The ASIC readout system has detected a timeslip.
That is the timestamp read from the time FIFO is not younger than the last
Statistics ok - attachment 1
Temp ok - attachment 2
Bias and leakage current ok - attachment 3
01:42 Comparing the CS of AIDA3 and 4
Stats have been running for a while (Believe since 5am)
Looking at the counter ratio - attachment 4
We still have a deadtime of around 14% in FEE4 (Assuming FEE3 has no dead time)
01:56 Noticed /media/ThirdDrive was at 97% full
Let DESPEC locals know I would like to use the next run stop to change the directory.
They said they could do it now so they stopped their run.
Changed the symbolic link to /media/1e2....
Now writing to R4_
03:26 MBS DAQ Stopped as beam stopped
03:33 Beam back now and DAQ running again
04:44 System wide checks as before
Statistics ok - attachment 5
Temperatures ok - attachment - 7
Bias and leakage currents ok - attachment 6
05:53 MBS stops run as beam drops
06:00 MBS started a new run as beam is back
07:37 System wide checks clock ok and FPGA as before
WR additional difference on FEE5
Base Current Difference
aida01 fault 0xf932 : 0xf933 : 1
aida02 fault 0x62ec : 0x62ed : 1
aida03 fault 0x8679 : 0x867a : 1
aida04 fault 0xf0e4 : 0xf0e5 : 1
aida05 fault 0x9db8 : 0x9dc0 : 8
aida06 fault 0x7f18 : 0x7f19 : 1
aida07 fault 0xdd2c : 0xdd2d : 1
aida08 fault 0x1557 : 0x1558 : 1
White Rabbit error counter test result: Passed 8, Failed 8
Understand the status reports as follows:-
Status bit 3 : White Rabbit decoder detected an error in the received data
Status bit 2 : Firmware registered WR error, no reload of Timestamp
Status bit 0 : White Rabbit decoder reports uncertain of Timestamp information from WR
Statistics ok - attachment 8
Temp ok - attachment 9
Bias and leakage ok - attachment 10
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148
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Fri Mar 13 08:01:53 2020 |
DK | Friday 13th 8:00 to 16:00 shift | 8:00 - See previous shift's elog entry. All good.
9:00
All system wide checks passed
Merger okay, 3 Mega items / sec, all nnaida twinkle or stay lit
Tape Server okay - 27 MB/s
Histograms of implants look normal, about 5 counts per bin in SSD1 and SSD2 - see attachment #1
Stats as usual - attachment #2
Temps normal - attachment #3
Biases and leaks fine - attachment #4
Disk usage projection
Space remaining: ~2 TB
Fill rate: ~2 GB / 1 minute
-> 1000 minutes =~ 17 hours
Still gzipping from R6_823
10:13 I noticed that the integer for the TapeServer UI feedbackk has been exceeded.
Kbytes Written: -1986382400 Kbytes/sec: 26816
Rate is fixed at that value on update.
However, actual data files are being updated so data has been coming.
DK and NH consulted and believe the situation is fine.
We agreed next time the DESPEC team closes a run and starts a new one, they inform DK so he can restart the TapeServer for posterity and peace of mind.
10:25 Now we are on R10 after start and stop the TapeServer. Problem is resolved.
11:30
Implants: attachment #5
Stats: attachment #6
Biases / leaks: attachment #7
Temps: attachment #8
System wide checks performed, situation normal. |
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146
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Thu Mar 12 23:04:24 2020 |
LS, DK | Friday 13th 00:00 to 08:00 shift | Shift file starting R9_639
system wide checks okay
FEE temperatures okay (attachment 1)
leakage currents normal and recorded to spreadsheet (attachment 2)
good event stats are normal (attachment 3)
merger running at 3.5 M items/sec
tape running at 26 MB/sec
rates histogram (attachment 4)
low energy histograms (attachment 5 and 6)
high energy histograms (attachment 7 and 8)
02.02
system wide checks okay
FEE temperatures okay (attachment 9)
leakage currents normal and recorded to spreadsheet (attachment 10)
good event stats are normal (attachment 11)
merger running at 3.5 M items/sec
tape running at 27 MB/sec
04.09
system wide checks okay
FEE temperatures okay (attachment 12)
leakage currents normal and recorded to spreadsheet (attachment 13)
good event stats are normal (attachment 14)
merger running at 3 M items/sec
tape running at 27 MB/sec
writing to file R9_840
06.07
system wide checks okay
FEE temperatures okay (attachment 15)
leakage currents normal and recorded to spreadsheet (attachment 16)
good event stats are normal (attachment 17)
merger running at 3 M items/sec
tape running at 27 MB/sec
07.59
system wide checks okay
FEE temperatures okay (attachment 18)
leakage currents normal and recorded to spreadsheet (attachment 19)
good event stats are normal (attachment 20)
merger running at 3 M items/sec
tape running at 26 MB/sec
as of 08.00 just finished R9_1021
gzip is going through the R6_8* files
2.1TB left of space |
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442
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Fri May 13 07:36:18 2022 |
OH, TD | Friday 13 May | 08:36 DAQ Still running smoothly
Currently on run R1_328
At current data rates we have just over 4 days of space left on the current disk
Analysis of R1_327 - attachment 1
14.15 all histograms zero'd
baseline system wide checks counters
DAQ continues file S450/R4_33
netint pushenable 6 - was 60 - to investigate FEE64 throughput issues
netint flushenable 60 - not changed
ASIC settings
slow comparator aida02 aida04 0x16, aida06 aida08 0x23, aida12 0xd, all others 0xc
BNC PB-5 settings
amplitude 1.000V
attenuation x1
frequency 2Hz
tau_d 1ms (tail pulse)
+ polarity
Attachments 2 & 3 - ucesb
Pb beam intensity c. 4e+8/spill - lower than expected 1e+9/spill . Low implant rates (~Hz/spill) are expected for setting.
Attachment 4 & 5 - grafana DSSSD bias, leakage current & temp - OK
Attachments 6-8 - NewMerger stats blocks 0, 1, & 6
Attachment 9 - NewMerger link stats
Attachments 10-11 - TapeServer/NewMerger
Attachment 12 - iptraf aida-gsi network interfaces
Attachments 13-14 - per FEE64 1.8.L spectra
pulser peak width aida01 123 ch FWHM, aida04 430 ch FWHM
Attachments 15-18 - per FEE64 rates and stat spectra
Attachments 19-22 - system wide checks
aida09 clock status 6, WR decoder status errors
Attachments 23-26 - adc, pause, resume correlation sclaer data item stats
Attachment 27 - FEE64 temps OK
Attachment 28 - DSSSSD bias and leakage currents OK
14.30 check ASIC load
14.47 attachment 29 - analysis S450/R4_38
15.11 Attachments 30-35 - data push, flush stats for all FEE64s and aida01 (low ADC data item rate) and aida06 (high ADC data item rate) |
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704
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Fri Jun 13 12:42:39 2025 |
CC, TD | Friday 13 June 2025 |
13.42 ASIC settings 2025Jun12-13.53.04
*all* FEE64s slow comparator 0x64
all fast disc outputs disabled
p+n FEE64s waveform threshold 7000, n+n FEE64s 9000
CC grounding ribbon cable heavy duty braid to adaptor PCB and AIDA support assembly ground
'top' p+n FEE64s and snout to be completed
16.00 DSSSD bias & leakage current - attachment 1
FEE64 temps OK - attachment 2
All system wide checks OK *except* WR decoder status aida02 and aida06 - attachment 3
WR timestamps OK - attachment 4
ADC data item stats - attachment 5
per FEE64 Rate spectra - attachment 6
per p+n FEE64 1.8.L spectra - attachment 7
aida09 pulser peak width 117 ch FWHM - no change since yesterday
per FEE64 1.8.W spectra - 20us FSR - attachments 8-10
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192
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Fri Mar 12 10:09:19 2021 |
LS, CA | Friday 12th March 11.00- | 11.00(Germany) System wide checks okay except:
FEE64 module aida09 global clocks failed, 6
Clock status test result: Passed 11, Failed 1
Understand status as follows
Status bit 3 : firmware PLL that creates clocks from external clock not locked
Status bit 2 : always logic '1'
Status bit 1 : LMK3200(2) PLL and clock distribution chip not locked to external clock
Status bit 0 : LMK3200(1) PLL and clock distribution chip not locked to external clock
If all these bits are not set then the operation of the firmware is unreliable
FEE64 module aida07 failed
FEE64 module aida09 failed
Calibration test result: Passed 10, Failed 2
If any modules fail calibration , check the clock status and open the FADC Align and Control browser page to rerun
calibration for that module
Statistics (attachment1)
Spectra rates (attachment2)
FEE temps (attachment3)
Leakage currents, written to google sheet (attachment4)
Merger~ 4.9M items/s
Tapeserver ~17MB/s
In MBS control terminal, connection has been closed intentionally since this morning (file S452f160),
AIDA has been taken out of the timesorter due to the high data rate, buffers were full
AIDA cannot be seen in ucesb or Go4.
13.00 System wide checks okay except:
FEE64 module aida09 global clocks failed, 6
Clock status test result: Passed 11, Failed 1
Understand status as follows
Status bit 3 : firmware PLL that creates clocks from external clock not locked
Status bit 2 : always logic '1'
Status bit 1 : LMK3200(2) PLL and clock distribution chip not locked to external clock
Status bit 0 : LMK3200(1) PLL and clock distribution chip not locked to external clock
If all these bits are not set then the operation of the firmware is unreliable
FEE64 module aida07 failed
FEE64 module aida09 failed
Calibration test result: Passed 10, Failed 2
If any modules fail calibration , check the clock status and open the FADC Align and Control browser page to rerun
calibration for that module
Statistics (attachment5)
Spectra rates (attachment6)
FEE temps (attachment7)
Leakage currents, written to google sheet (attachment8)
Merger~ 5.1M items/s
Tapeserver ~18MB/s
No timestamp related errors this shift
13.37 AIDA MBS control restarted R33_388
System wide checks same as previous time
13.54 beam stopped for access, file R33_396
13.57 seen recent batch of bad timestamp errors in new merger terminal (attachment9) should be around R33_397
Analysed R33_395, 396, 397, 398 no timewarps
14.29 beam back R33_415
14.54 see more bad timestamps in new merger terminal (attachment10)
14.55 System wide checks okay except:
FEE64 module aida09 global clocks failed, 6
Clock status test result: Passed 11, Failed 1
Understand status as follows
Status bit 3 : firmware PLL that creates clocks from external clock not locked
Status bit 2 : always logic '1'
Status bit 1 : LMK3200(2) PLL and clock distribution chip not locked to external clock
Status bit 0 : LMK3200(1) PLL and clock distribution chip not locked to external clock
If all these bits are not set then the operation of the firmware is unreliable
FEE64 module aida07 failed
FEE64 module aida09 failed
Calibration test result: Passed 10, Failed 2
If any modules fail calibration , check the clock status and open the FADC Align and Control browser page to rerun
calibration for that module
Statistics (attachment11)
Spectra rates (attachment12)
FEE temps (attachment13)
Leakage currents, written to google sheet (attachment14)
Merger~ 5.0M items/s
Tapeserver ~17MB/s
16.05 AIDA included back into timesorter, AIDA scalers now seen in ucesb, file R33_463
16.15 CA takes over until 18:00
17:11 System wide checks:
FEE64 module aida09 global clocks failed, 6
Clock status test result: Passed 11, Failed 1
Understand status as follows
Status bit 3 : firmware PLL that creates clocks from external clock not locked
Status bit 2 : always logic '1'
Status bit 1 : LMK3200(2) PLL and clock distribution chip not locked to external clock
Status bit 0 : LMK3200(1) PLL and clock distribution chip not locked to external clock
If all these bits are not set then the operation of the firmware is unreliable
FEE64 module aida07 failed
FEE64 module aida09 failed
Calibration test result: Passed 10, Failed 2
If any modules fail calibration , check the clock status and open the FADC Align and Control browser page to rerun
calibration for that module
Base Current Difference
aida07 fault 0xcdd6 : 0xcdd7 : 1
White Rabbit error counter test result: Passed 11, Failed 1
17:13 FEE64 temps ok - attachment 15
Statistics ok - attachment 16
bias and leakage currents ok - attachment 17 |
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191
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Fri Mar 12 08:32:46 2021 |
TD | Friday 12 March 08.00- | 08.31 DAQ continues OK - file R33_263
ASIC settings 2019Dec19-16.19.51
DSSSD#1 slow comparator 0xa
DSSSD#2 slow comparator 0xa
DSSSD#3 slow comparator 0xd
BNC PB-5 Pulser
Amplitude1.0V
Attenuation x1
Frequency 2Hz
tau_d 1ms
- polarity
Delay 250ns, tail pulse
08.32 No merger server error/warning messages since most recent restart c. 00.00 today
08.44 System wide checks
FEE64 module aida09 global clocks failed, 6
Clock status test result: Passed 11, Failed 1
Understand status as follows
Status bit 3 : firmware PLL that creates clocks from external clock not locked
Status bit 2 : always logic '1'
Status bit 1 : LMK3200(2) PLL and clock distribution chip not locked to external clock
Status bit 0 : LMK3200(1) PLL and clock distribution chip not locked to external clock
If all these bits are not set then the operation of the firmware is unreliable
FEE64 module aida07 failed
FEE64 module aida10 failed
Calibration test result: Passed 10, Failed 2
If any modules fail calibration , check the clock status and open the FADC Align and Control browser page to rerun calibration for that module
Base Current Difference
aida05 fault 0x7a56 : 0x7a58 : 2
aida06 fault 0x65bb : 0x65bd : 2
aida07 fault 0xcdd1 : 0xcdd4 : 3
aida08 fault 0x2ab3 : 0x2ab5 : 2
White Rabbit error counter test result: Passed 8, Failed 4
Understand the status reports as follows:-
Status bit 3 : White Rabbit decoder detected an error in the received data
Status bit 2 : Firmware registered WR error, no reload of Timestamp
Status bit 0 : White Rabbit decoder reports uncertain of Timestamp information from WR
FPGA Timestamp error counter test result: Passed 12, Failed 0
If any of these counts are reported as in error
The ASIC readout system has detected a timeslip.
That is the timestamp read from the time FIFO is not younger than the last
Returned 0 0 0 0 0 0 0 0 0 0 0 0
Mem(KB) : 4 8 16 32 64 128 256 512 1k 2k 4k
aida01 : 14 6 3 2 1 2 2 3 3 4 11 : 58904
aida02 : 6 4 1 1 1 2 2 4 2 3 7 : 39848
aida03 : 5 6 4 2 1 3 1 3 2 3 7 : 39300
aida04 : 4 1 2 2 3 3 2 4 1 4 15 : 73912
aida05 : 1 5 2 2 2 4 2 3 2 3 7 : 39692
aida06 : 7 2 2 3 1 3 3 3 2 4 7 : 41836
aida07 : 6 3 1 2 3 2 2 3 3 3 7 : 40512
aida08 : 8 5 2 2 1 3 1 3 2 3 7 : 39272
aida09 : 1 2 3 1 1 3 2 3 1 4 7 : 40484
aida10 : 2 6 3 2 1 2 2 2 3 3 7 : 39912
aida11 : 2 3 1 0 2 4 1 3 2 3 7 : 39344
aida12 : 2 3 4 2 0 3 3 3 2 3 7 : 39712
FEE64 Temperatures OK - attachment 1
Good event statistics OK - attachment 2
Detector bias & leakage currents OK - attachment 3
Merger OK - 5.1M data items/s
TapeServer OK - 16Mb/s
08.54 p+n junction strip HEC spectra - attachment 1
Rate spectra - attachment 2
09.15 Burst of Merger server warning messages of type
MERGE Data Link (3547): bad timestamp 1 3 0x8128d6c8 0x05056328 0x00008d6c85056328 0x166b8d6c85056328 0x166b8d6d86da01ee
also multiple
Warning: At least one MIDAS block missed in relayWarning: At least one MIDAS block missed in relayWarning: At least one MIDAS block missed in relayWarning: At least one
MIDAS block missed in relayWarning: At least one MIDAS block missed in relayWarning: At least one MIDAS block missed in relayWarning: At least one MIDAS block missed in
relayWarning: At least one MIDAS block missed in relayWarning: A
The latter may reflect downstream problems writing MBS data |
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193
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Fri Mar 12 20:12:10 2021 |
TD | Friday 12 March | 21.12 DAQ continues OK - file R33_617
ASIC settings 2019Dec19-16.19.51
DSSSD#1 slow comparator 0xa
DSSSD#2 slow comparator 0xa
DSSSD#3 slow comparator 0xd
BNC PB-5 Pulser
Amplitude1.0V
Attenuation x1
Frequency 2Hz
tau_d 1ms
- polarity
Delay 250ns, tail pulse
21.15 System wide checks
FEE64 module aida09 global clocks failed, 6
Clock status test result: Passed 11, Failed 1
Understand status as follows
Status bit 3 : firmware PLL that creates clocks from external clock not locked
Status bit 2 : always logic '1'
Status bit 1 : LMK3200(2) PLL and clock distribution chip not locked to external clock
Status bit 0 : LMK3200(1) PLL and clock distribution chip not locked to external clock
If all these bits are not set then the operation of the firmware is unreliable
FEE64 module aida07 failed
FEE64 module aida09 failed
Calibration test result: Passed 10, Failed 2
If any modules fail calibration , check the clock status and open the FADC Align and Control browser page to rerun calibration for that module
Base Current Difference
aida05 fault 0x7a58 : 0x7a5a : 2
aida06 fault 0x65bd : 0x65bf : 2
aida07 fault 0xcdd6 : 0xcdda : 4
aida08 fault 0x2ab5 : 0x2ab7 : 2
White Rabbit error counter test result: Passed 8, Failed 4
Understand the status reports as follows:-
Status bit 3 : White Rabbit decoder detected an error in the received data
Status bit 2 : Firmware registered WR error, no reload of Timestamp
Status bit 0 : White Rabbit decoder reports uncertain of Timestamp information from WR
Base Current Difference
aida05 fault 0x0 : 0x1 : 1
FPGA Timestamp error counter test result: Passed 11, Failed 1
If any of these counts are reported as in error
The ASIC readout system has detected a timeslip.
That is the timestamp read from the time FIFO is not younger than the last
Returned 0 0 0 0 0 0 0 0 0 0 0 0
Mem(KB) : 4 8 16 32 64 128 256 512 1k 2k 4k
aida01 : 5 4 2 0 1 2 3 3 2 3 11 : 55956
aida02 : 21 4 1 2 2 4 2 2 1 4 7 : 40260
aida03 : 10 4 4 1 6 4 1 3 3 3 6 : 36648
aida04 : 7 2 4 0 2 3 2 4 1 4 15 : 73836
aida05 : 1 3 1 5 4 3 1 2 3 4 6 : 37964
aida06 : 12 3 5 2 1 3 3 3 2 4 7 : 41880
aida07 : 2 4 3 3 4 2 2 4 3 3 6 : 37048
aida08 : 17 13 2 3 2 3 2 3 2 3 7 : 39724
aida09 : 3 7 2 0 1 2 2 3 2 2 7 : 37284
aida10 : 2 5 3 2 2 3 1 3 2 3 7 : 39328
aida11 : 23 18 2 3 2 3 3 2 3 3 6 : 36460
aida12 : 18 7 3 1 1 4 2 2 2 3 7 : 39184
FEE64 Temperatures OK - attachment 1
Good event statistics OK - attachment 2
Detector bias & leakage currents OK - attachment 3
Merger OK - 4.9M data items/s
TapeServer OK - 16Mb/s
All histograms zero'd
21.50 At some point between R33_610 (20.59) and R33_625 (21.30) aida05 stopped producing data (zero good events - see attachment 2)
able to telnet to aida05 - no warnings/error messages in /var/log/messages
DAQ STOP (all except aida05 stopped OK, aida05 remained GOING)
issued aida05 reboot command via telnet command line
DAQ RESET/SETUP/GO (all FEE64s GOING OK except aida05 - zero good events)
21.15 All system wide checks OK *except*
FEE64 module aida09 global clocks failed, 6
Clock status test result: Passed 11, Failed 1
Understand status as follows
Status bit 3 : firmware PLL that creates clocks from external clock not locked
Status bit 2 : always logic '1'
Status bit 1 : LMK3200(2) PLL and clock distribution chip not locked to external clock
Status bit 0 : LMK3200(1) PLL and clock distribution chip not locked to external clock
If all these bits are not set then the operation of the firmware is unreliable
FEE64 module aida07 failed
FEE64 module aida09 failed
Calibration test result: Passed 10, Failed 2
If any modules fail calibration , check the clock status and open the FADC Align and Control browser page to rerun calibration for that module
21.50 aida04 & aida05 statistics for comparison - see attachments 4 & 5 |
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395
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Fri Feb 11 12:09:24 2022 |
NH | Fri 11 Feb AIDA Work | Use beam break between FRS experiments to finalise getting AIDA testable for PJCS etc.
USB hubs reconnected - all 16 ttyUSBs seem to be visible now
New inverter installed (Ortec 533 Sum Invert, brand new) - Pulser T connected to input B1 and inverted out B sent to -ve FEEs
VME crate for VETAR2 is powered on so White Rabbit should be available
All grounds reconnected on FEEs
All FEEs connected to pulser chain again
-
Moved interlock to new Al shelf on AIDA rack so it's not kicked
Powered on OK, all 4 lights on in box but AIDA Relay had to water light
Investigation shows the cable between relay and interlock was broken, one wire had come loose from connector
Resoldered and now it works as usual
System powered up OK
All 16 FEEs respond to serial
All 16 FEEs have WR
All 16 FEEs show pulser ADC entries
Seems good! |
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479
|
Fri Jun 10 10:32:46 2022 |
NH | Fri 10 Jun | Probe PSU output with 'scope again and 10X probe
Use a AC mains scope as was available, means referenced to ground of AC, but should be ground of platform (and hence Fee64)
Figs 1-3: Traces of PSU outputs (5V, -6V, 5V Return) with 10X probe, 1 MOhm impedance AC coupled
Lots of fluctuation and jitter
Figs 4-6: DC 1MOhm output from all 3 power rails
Fig 7-8: Small "loop" using probe and observed scope spectra.
After lunch ideas:
- Try again with 1X probe attenuation, maybe record output to USB
- Remove unconnected MACBs from master
- |
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518
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Sun Jul 16 09:32:57 2023 |
TD | Firefox browser proxy setting change |
Firefox browser proxy setting changed to 'Auto-detect proxy settings for this network' ( Firefox -> Edit -> Settings -> Network Settings -> Settings ) |
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397
|
Tue Mar 1 08:29:19 2022 |
OH, NH | Findings from the upgrade to centos7 from SL6 | Required packages not included as default
- csh (For running MIDAS scripts)
- xinetd (Runs the rdate server for the FEEs)
- Telnet (Communication with the FEEs)
- dhcp
Configuration changes
Optional extras
- For top bar icons similar to SL6 can use the gnome extension "Frippery panel favorites"
- Then just need to create desktop icons for each of the startup scripts within /usr/share/applications - Attachment 1
- Can also add screenshot to this - Attachment 2
- Gnome tweaks also allows the number of workspaces to be changed
- Also recommend setting workspaces to span displays
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222
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Thu Apr 15 12:23:22 2021 |
NH | Fast Discriminator Masks | It is possible to get good rates with the fast discriminators with a few hot channels mask in aida03 and aida10
Threshold is 0x20 = 3.2 MeV
They can be tested in beam to see performance, especially note the first setting will involve alpha emitters to check in AIDA
All FEEs:
AS01 01, AS3 07 10 13 are masked
aida03:
AS0 12 and 14 are masked in addition
aida10:
AS1 10, 11 and AS2 05, 06 are masked in addiction |
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709
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Tue Jul 22 18:00:45 2025 |
CC, NK, MP | FWHM aida FEE | AIDA05 completely disconnected, all the others FEEs64 are fully connected
Attachment 1: aida05, FWHM= 95 ch, 63 keV
Attachment 2: aida15, FWHM= 108 ch, 74 keV |
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362
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Wed Jun 9 19:17:21 2021 |
TD | FEE64 system console logs | |
|
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3
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Thu Sep 6 15:42:53 2018 |
OH, TD | FEE64 system console logs |
Kernel panics during boot cab be observed in files ttyUSB1 and ttyUSB5
In each case the FEE64 successfully completed reboot c. 5 minutes later |
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562
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Sun Apr 7 13:08:52 2024 |
TD | FEE64 configuration | FEE64 configuration per https://elog.gsi.de/despec/S100/6
Configuration: Wide - 16 FEEs, 2 DSSD
DSSD 1:
X 0-63 = 15
X 63-127 = 9
X 128-191 = 3
X 192-255 = 1
X 256-319 = 12
X 320-385 = 5
Y 0-63 = 4
Y 63-127 = 2
DSSD 2:
X 0-63 = 11
X 63-127 = 10
X 128-191 = 7
X 192-255 = 14
X 256-319 = 16
X 320-385 = 13
Y 0-63 = 8
Y 63-127 = 6
Scalers:
1 - Pulser
2 - FRS Accepted
3 - Time Machine Undelayed
4 - Time Machine Delayed
5 - SC41 L
6 - SC41 R
Thresholds (Slow / Fast / Implant)
DSSD 1 p+n : 0xA (100 keV) / 0xFF (disabled) / 0x02 (200 MeV)
DSSD 1 n+n : 0xF (150 keV) / 0xFF (disabled) / 0x02 (200 MeV) |
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293
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Tue May 4 14:26:50 2021 |
NH | FEE64 Adapter wiring diagram and layout | A figure showing the FEE64 numbers (a previous diagram had 2/6 and 4/8 on the wrong side of the DSSD) and the wiring of pulser/HV
Also the jumpers connected to the boards
As always diagram is looking with direction of beam
Edit: Figure as signals (HV/Pulser) come from the beam right not beam left
Otherwise OK |
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116
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Thu Dec 19 14:45:42 2019 |
TD | FEE64 ASIC settings - different diode link settings | [npg@aidas-gsi 2019Oct31-13.24.23]$ pwd
/MIDAS/DB/EXPERIMENTS/AIDA/2019Oct31-13.24.23
[npg@aidas-gsi 2019Oct31-13.24.23]$ /bin/csh
[npg@aidas-gsi 2019Oct31-13.24.23]$ foreach f (`ls`)
foreach? echo $f
foreach? cat "$f"/CONTENTS | grep .26
foreach? end
aida01
ASIC.2.26 string 0xbf
ASIC.3.26 string 0xbf
ASIC.1.26 string 0xbf
ASIC.4.26 string 0xbf
aida02
ASIC.2.26 string 0x11
ASIC.3.26 string 0x11
ASIC.1.26 string 0x11
ASIC.4.26 string 0x11
aida03
ASIC.2.26 string 0xca
ASIC.3.26 string 0xca
ASIC.1.26 string 0xca
ASIC.4.26 string 0xca
aida04
ASIC.2.26 string 0x23
ASIC.3.26 string 0x23
ASIC.1.26 string 0x23
ASIC.4.26 string 0x23
aida05
ASIC.2.26 string 0xbf
ASIC.3.26 string 0xbf
ASIC.1.26 string 0xbf
ASIC.4.26 string 0xbf
aida06
ASIC.2.26 string 0x11
ASIC.3.26 string 0x11
ASIC.1.26 string 0x11
ASIC.4.26 string 0x11
aida07
ASIC.2.26 string 0xca
ASIC.3.26 string 0xca
ASIC.1.26 string 0xca
ASIC.4.26 string 0xca
aida08
ASIC.2.26 string 0x23
ASIC.3.26 string 0x23
ASIC.1.26 string 0x23
ASIC.4.26 string 0x23
aida09
ASIC.2.26 string 0xbf
ASIC.3.26 string 0xbf
ASIC.1.26 string 0xbf
ASIC.4.26 string 0xbf
aida10
ASIC.2.26 string 0x11
ASIC.3.26 string 0x11
ASIC.1.26 string 0x11
ASIC.4.26 string 0x11
aida11
ASIC.2.26 string 0xca
ASIC.3.26 string 0xca
ASIC.1.26 string 0xca
ASIC.4.26 string 0xca
aida12
ASIC.2.26 string 0x11
ASIC.3.26 string 0x11
ASIC.1.26 string 0x11
ASIC.4.26 string 0x11
This variation appears to be true for previously saved ASIC settings too
2018Aug21-13.17.09
2018Sep06-14.38.28
2019Mar31-16.15.57
2019Oct31-13.24.23
Current ASIC settings for AIDA@RIKEN for nnaida1-nnaida4 use values 0x23 and 0xbf
aidas1> cd 2019Jun13-08.56.35
/MIDAS/DB/EXPERIMENTS/AIDA/2019Jun13-08.56.35
aidas1> ls
CONTENTS nnaida10 nnaida12 nnaida14 nnaida16 nnaida18 nnaida2 nnaida21 nnaida23 nnaida3 nnaida5 nnaida7 nnaida9
nnaida1 nnaida11 nnaida13 nnaida15 nnaida17 nnaida19 nnaida20 nnaida22 nnaida24 nnaida4 nnaida6 nnaida8
aidas1> cat nnaida1/CONTENTS
ASIC.2.20 string 0x68
ASIC.1.3 string 0x02
ASIC.2.19 string 0x5c
ASIC.1.4 string 0x07
ASIC.2.21 string 0x0f
ASIC.2.22 string 0x5c
ASIC.1.5 string 0x08
ASIC.1.6 string 0x09
ASIC.2.23 string 0x08
ASIC.2.24 string 0x68
ASIC.1.7 string 0x05
ASIC.2.25 string 0x08
ASIC.1.8 string 0x00
ASIC.2.26 string 0xbf
ASIC.1.9 string 0x0f
ASIC.2.0 string 0x04
ASIC.2.1 string 0x05
ASIC.3.10 string 0x00
ASIC.2.2 string 0x06
ASIC.3.11 string 0x0d
ASIC.2.3 string 0x02
ASIC.3.12 string 0x0a
ASIC.2.4 string 0x07
ASIC.3.13 string 0x34
ASIC.2.5 string 0x08
ASIC.3.14 string 0x02
ASIC.2.6 string 0x09
ASIC.3.15 string 0x20
ASIC.2.7 string 0x05
ASIC.3.16 string 0xd2
ASIC.2.8 string 0x00
ASIC.3.17 string 0x80
ASIC.2.9 string 0x0f
ASIC.3.18 string 0xb2
ASIC.3.20 string 0x68
ASIC.3.19 string 0x5c
WAVE.0 string 0x00000000
ASIC.3.21 string 0x0f
WAVE.1 string 0x00000000
ASIC.3.22 string 0x5c
LED.0 string 0x00411ecc
WAVE.2 string 0x00000000
ASIC.3.23 string 0x08
LED.1 string 0x0000ffff
WAVE.3 string 0x00000000
ASIC.3.24 string 0x68
LED.2 string 0x00411ecc
ASIC.3.25 string 0x08
LED.3 string 0x00000000
ASIC.1.10 string 0x00
LED.4 string 0x00411ecc
ASIC.3.0 string 0x04
ASIC.1.11 string 0x0d
ASIC.3.26 string 0xbf
ASIC.1.12 string 0x0a
ASIC.3.1 string 0x05
LED.5 string 0x00000000
LED.6 string 0x00411ecc
ASIC.3.2 string 0x06
ASIC.1.13 string 0x34
LED.7 string 0x00000000
ASIC.3.3 string 0x02
ASIC.1.14 string 0x02
LED.8 string 0x000003fc
ASIC.1.15 string 0x20
ASIC.3.4 string 0x07
ASIC.3.5 string 0x08
LED.9 string 0x000000c8
ASIC.1.16 string 0xd2
ASIC.1.17 string 0x80
ASIC.3.6 string 0x09
ASIC.3.7 string 0x05
ASIC.1.18 string 0xb2
ASIC.1.19 string 0x5c
ASIC.1.20 string 0x68
ASIC.3.8 string 0x00
ASIC.3.9 string 0x0f
ASIC.1.21 string 0x0f
ASIC.1.22 string 0x5c
ASIC.4.10 string 0x00
ASIC.1.23 string 0x08
ASIC.4.11 string 0x0d
ASIC.4.12 string 0x0a
ASIC.1.24 string 0x68
ASIC.4.13 string 0x34
ASIC.1.25 string 0x08
ASIC.4.14 string 0x02
ASIC.1.26 string 0xbf
ASIC.4.15 string 0x20
DISC.6 string 0x00000002
ASIC.4.16 string 0xd2
ASIC.4.0 string 0x04
ASIC.4.17 string 0x80
DISC.7 string 0x24800000
ASIC.4.18 string 0xb2
ASIC.4.1 string 0x05
ASIC.4.2 string 0x06
ASIC.4.19 string 0x5c
ASIC.4.20 string 0x68
ASIC.4.21 string 0x0f
ASIC.4.3 string 0x02
ASIC.4.4 string 0x07
ASIC.4.22 string 0x5c
ASIC.4.23 string 0x08
ASIC.4.5 string 0x08
ASIC.4.6 string 0x09
ASIC.4.24 string 0x68
ASIC.2.10 string 0x00
ASIC.4.25 string 0x08
ASIC.4.7 string 0x05
ASIC.4.8 string 0x00
ASIC.4.26 string 0xbf
ASIC.2.11 string 0x0d
ASIC.2.12 string 0x0a
ASIC.4.9 string 0x0f
ASIC.2.13 string 0x34
ASIC.2.14 string 0x02
ASIC.2.15 string 0x20
ASIC.2.16 string 0xd2
ASIC.1.0 string 0x04
ASIC.1.1 string 0x05
ASIC.2.17 string 0x80
ASIC.2.18 string 0xb2
ASIC.1.2 string 0x06
aidas1> cat nnaida2/CONTENTS
ASIC.2.20 string 0x68
ASIC.1.3 string 0x02
ASIC.2.19 string 0x5c
ASIC.1.4 string 0x07
ASIC.2.21 string 0x0f
ASIC.2.22 string 0x5c
ASIC.1.5 string 0x08
ASIC.1.6 string 0x09
ASIC.2.23 string 0x08
ASIC.2.24 string 0x68
ASIC.1.7 string 0x05
ASIC.2.25 string 0x08
ASIC.1.8 string 0x00
ASIC.2.26 string 0xbf
ASIC.1.9 string 0x0f
ASIC.2.0 string 0x04
ASIC.2.1 string 0x05
ASIC.3.10 string 0x00
ASIC.2.2 string 0x06
ASIC.3.11 string 0x0d
ASIC.2.3 string 0x02
ASIC.3.12 string 0x0a
ASIC.2.4 string 0x07
ASIC.3.13 string 0x34
ASIC.2.5 string 0x08
ASIC.3.14 string 0x02
ASIC.2.6 string 0x09
ASIC.3.15 string 0x20
ASIC.2.7 string 0x05
ASIC.3.16 string 0xd2
ASIC.2.8 string 0x00
ASIC.3.17 string 0x80
ASIC.2.9 string 0x0f
ASIC.3.18 string 0xb2
ASIC.3.20 string 0x68
ASIC.3.19 string 0x5c
WAVE.0 string 0x00000008
ASIC.3.21 string 0x0f
WAVE.1 string 0x00000005
ASIC.3.22 string 0x5c
LED.0 string 0x00411ecc
WAVE.2 string 0x0000ff38
ASIC.3.23 string 0x08
WAVE.3 string 0x00000080
LED.1 string 0x0000ffff
ASIC.3.24 string 0x68
LED.2 string 0x00411ecc
ASIC.3.25 string 0x08
ASIC.1.10 string 0x00
LED.3 string 0x00000000
ASIC.1.11 string 0x0d
ASIC.3.0 string 0x04
LED.4 string 0x00411ecc
ASIC.3.26 string 0xbf
ASIC.1.12 string 0x0a
ASIC.3.1 string 0x05
LED.5 string 0x00000000
LED.6 string 0x00411ecc
ASIC.3.2 string 0x06
ASIC.1.13 string 0x34
ASIC.1.14 string 0x02
ASIC.3.3 string 0x02
LED.7 string 0x00000000
LED.8 string 0x000003fc
ASIC.1.15 string 0x20
ASIC.3.4 string 0x07
ASIC.3.5 string 0x08
ASIC.1.16 string 0xd2
LED.9 string 0x000000c8
ASIC.1.17 string 0x80
ASIC.3.6 string 0x09
ASIC.3.7 string 0x05
ASIC.1.18 string 0xb2
ASIC.1.20 string 0x68
ASIC.1.19 string 0x5c
ASIC.3.8 string 0x00
ASIC.3.9 string 0x0f
ASIC.1.21 string 0x0f
ASIC.4.10 string 0x00
ASIC.1.22 string 0x5c
ASIC.1.23 string 0x08
ASIC.4.11 string 0x0d
ASIC.4.12 string 0x0a
ASIC.1.24 string 0x68
ASIC.1.25 string 0x08
ASIC.4.13 string 0x34
ASIC.4.14 string 0x02
ASIC.1.26 string 0xbf
ASIC.4.15 string 0x20
ASIC.4.16 string 0xd2
DISC.6 string 0x00000002
ASIC.4.0 string 0x04
DISC.7 string 0x24800000
ASIC.4.17 string 0x80
ASIC.4.18 string 0xb2
ASIC.4.1 string 0x05
ASIC.4.20 string 0x68
ASIC.4.2 string 0x06
ASIC.4.19 string 0x5c
ASIC.4.3 string 0x02
ASIC.4.21 string 0x0f
ASIC.4.4 string 0x07
ASIC.4.22 string 0x5c
ASIC.4.23 string 0x08
ASIC.4.5 string 0x08
ASIC.4.6 string 0x09
ASIC.4.24 string 0x68
ASIC.2.10 string 0x00
ASIC.4.25 string 0x08
ASIC.4.7 string 0x05
ASIC.4.8 string 0x00
ASIC.4.26 string 0xbf
ASIC.2.11 string 0x0d
ASIC.2.12 string 0x0a
ASIC.4.9 string 0x0f
ASIC.2.13 string 0x34
ASIC.2.14 string 0x02
ASIC.2.15 string 0x20
ASIC.2.16 string 0xd2
ASIC.1.0 string 0x04
ASIC.1.1 string 0x05
ASIC.2.17 string 0x80
ASIC.2.18 string 0xb2
ASIC.1.2 string 0x06
aidas1> cat nnaida3/CONTENTS
ASIC.2.20 string 0x68
ASIC.1.3 string 0x02
ASIC.2.19 string 0x5c
ASIC.1.4 string 0x07
ASIC.2.21 string 0x0b
ASIC.2.22 string 0x5c
ASIC.1.5 string 0x08
ASIC.1.6 string 0x09
ASIC.2.23 string 0x08
ASIC.2.24 string 0x68
ASIC.1.7 string 0x05
ASIC.2.25 string 0x08
ASIC.1.8 string 0x01
ASIC.2.26 string 0x23
ASIC.1.9 string 0x0f
ASIC.2.0 string 0x04
ASIC.2.1 string 0x05
ASIC.3.10 string 0x00
ASIC.2.2 string 0x06
ASIC.3.11 string 0x02
ASIC.2.3 string 0x02
ASIC.3.12 string 0x0a
ASIC.2.4 string 0x07
ASIC.3.13 string 0xdb
ASIC.2.5 string 0x08
ASIC.3.14 string 0x02
ASIC.2.6 string 0x09
ASIC.3.15 string 0x20
ASIC.2.7 string 0x05
ASIC.3.16 string 0xd2
ASIC.2.8 string 0x01
ASIC.3.17 string 0x80
ASIC.2.9 string 0x0f
ASIC.3.18 string 0x30
ASIC.3.20 string 0x68
ASIC.3.19 string 0x5c
WAVE.0 string 0x00000008
ASIC.3.21 string 0x0b
WAVE.1 string 0x00000005
ASIC.3.22 string 0x5c
LED.0 string 0x004021fc
WAVE.2 string 0x0000ff38
ASIC.3.23 string 0x08
WAVE.3 string 0x00000080
LED.1 string 0x0000ffff
ASIC.3.24 string 0x68
LED.2 string 0x004021fc
ASIC.3.25 string 0x08
ASIC.1.10 string 0x00
LED.3 string 0x00000000
ASIC.1.11 string 0x02
ASIC.3.0 string 0x04
LED.4 string 0x004021fc
ASIC.3.26 string 0x23
ASIC.1.12 string 0x0a
ASIC.3.1 string 0x05
LED.5 string 0x00000000
LED.6 string 0x004021fc
ASIC.3.2 string 0x06
ASIC.1.13 string 0xdb
ASIC.1.14 string 0x02
ASIC.3.3 string 0x02
LED.7 string 0x00000000
LED.8 string 0x000003fc
ASIC.1.15 string 0x20
ASIC.3.4 string 0x07
ASIC.3.5 string 0x08
ASIC.1.16 string 0xd2
LED.9 string 0x000000c8
ASIC.1.17 string 0x80
ASIC.3.6 string 0x09
ASIC.3.7 string 0x05
ASIC.1.18 string 0x30
ASIC.1.20 string 0x68
ASIC.1.19 string 0x5c
ASIC.3.8 string 0x01
ASIC.3.9 string 0x0f
ASIC.1.21 string 0x0b
ASIC.4.10 string 0x00
ASIC.1.22 string 0x5c
ASIC.1.23 string 0x08
ASIC.4.11 string 0x02
ASIC.4.12 string 0x0a
ASIC.1.24 string 0x68
ASIC.1.25 string 0x08
ASIC.4.13 string 0xdb
ASIC.4.14 string 0x02
ASIC.1.26 string 0x23
ASIC.4.15 string 0x20
ASIC.4.16 string 0xd2
DISC.6 string 0x00000002
ASIC.4.0 string 0x04
DISC.7 string 0x24800000
ASIC.4.17 string 0x80
ASIC.4.18 string 0x30
ASIC.4.1 string 0x05
ASIC.4.20 string 0x68
ASIC.4.2 string 0x06
ASIC.4.19 string 0x5c
ASIC.4.3 string 0x02
ASIC.4.21 string 0x0b
ASIC.4.4 string 0x07
ASIC.4.22 string 0x5c
ASIC.4.23 string 0x08
ASIC.4.5 string 0x08
ASIC.4.6 string 0x09
ASIC.4.24 string 0x68
ASIC.2.10 string 0x00
ASIC.4.25 string 0x08
ASIC.4.7 string 0x05
ASIC.4.8 string 0x01
ASIC.4.26 string 0x23
ASIC.2.11 string 0x02
ASIC.2.12 string 0x0a
ASIC.4.9 string 0x0f
ASIC.2.13 string 0xdb
ASIC.2.14 string 0x02
ASIC.2.15 string 0x20
ASIC.2.16 string 0xd2
ASIC.1.0 string 0x04
ASIC.1.1 string 0x05
ASIC.2.17 string 0x80
ASIC.2.18 string 0x30
ASIC.1.2 string 0x06
aidas1> cat nnaida4/CONTENTS
ASIC.2.20 string 0x68
ASIC.1.3 string 0x02
ASIC.2.19 string 0x5c
ASIC.1.4 string 0x07
ASIC.2.21 string 0x0b
ASIC.2.22 string 0x5c
ASIC.1.5 string 0x08
ASIC.1.6 string 0x09
ASIC.2.23 string 0x08
ASIC.2.24 string 0x68
ASIC.1.7 string 0x05
ASIC.2.25 string 0x08
ASIC.1.8 string 0x01
ASIC.2.26 string 0x23
ASIC.1.9 string 0x0f
ASIC.2.0 string 0x04
ASIC.2.1 string 0x05
ASIC.3.10 string 0x00
ASIC.2.2 string 0x06
ASIC.3.11 string 0x02
ASIC.2.3 string 0x02
ASIC.3.12 string 0x0a
ASIC.2.4 string 0x07
ASIC.3.13 string 0xdb
ASIC.2.5 string 0x08
ASIC.3.14 string 0x02
ASIC.2.6 string 0x09
ASIC.3.15 string 0x20
ASIC.2.7 string 0x05
ASIC.3.16 string 0xd2
ASIC.2.8 string 0x01
ASIC.3.17 string 0x80
ASIC.2.9 string 0x0f
ASIC.3.18 string 0x30
ASIC.3.20 string 0x68
ASIC.3.19 string 0x5c
WAVE.0 string 0x00000008
ASIC.3.21 string 0x0b
WAVE.1 string 0x00000005
ASIC.3.22 string 0x5c
LED.0 string 0x00402134
WAVE.2 string 0x0000ff38
ASIC.3.23 string 0x08
LED.1 string 0x0000ffff
WAVE.3 string 0x00000080
ASIC.3.24 string 0x68
LED.2 string 0x00402134
ASIC.3.25 string 0x08
LED.3 string 0x00000000
ASIC.1.10 string 0x00
LED.4 string 0x00402134
ASIC.3.0 string 0x04
ASIC.1.11 string 0x02
ASIC.3.26 string 0x23
ASIC.1.12 string 0x0a
ASIC.3.1 string 0x05
LED.5 string 0x00000000
LED.6 string 0x00402134
ASIC.3.2 string 0x06
ASIC.1.13 string 0xdb
LED.7 string 0x00000000
ASIC.3.3 string 0x02
ASIC.1.14 string 0x02
ASIC.1.15 string 0x20
LED.8 string 0x000003fc
ASIC.3.4 string 0x07
ASIC.3.5 string 0x08
LED.9 string 0x000000c8
ASIC.1.16 string 0xd2
ASIC.1.17 string 0x80
ASIC.3.6 string 0x09
ASIC.3.7 string 0x05
ASIC.1.18 string 0x30
ASIC.1.19 string 0x5c
ASIC.1.20 string 0x68
ASIC.3.8 string 0x01
ASIC.3.9 string 0x0f
ASIC.1.21 string 0x0b
ASIC.4.10 string 0x00
ASIC.1.22 string 0x5c
ASIC.1.23 string 0x08
ASIC.4.11 string 0x02
ASIC.4.12 string 0x0a
ASIC.1.24 string 0x68
ASIC.1.25 string 0x08
ASIC.4.13 string 0xdb
ASIC.4.14 string 0x02
ASIC.1.26 string 0x23
ASIC.4.15 string 0x20
ASIC.4.16 string 0xd2
DISC.6 string 0x00000002
ASIC.4.0 string 0x04
DISC.7 string 0x24800000
ASIC.4.17 string 0x80
ASIC.4.18 string 0x30
ASIC.4.1 string 0x05
ASIC.4.2 string 0x06
ASIC.4.20 string 0x68
ASIC.4.19 string 0x5c
ASIC.4.21 string 0x0b
ASIC.4.3 string 0x02
ASIC.4.4 string 0x07
ASIC.4.22 string 0x5c
ASIC.4.23 string 0x08
ASIC.4.5 string 0x08
ASIC.4.6 string 0x09
ASIC.4.24 string 0x68
ASIC.2.10 string 0x00
ASIC.4.25 string 0x08
ASIC.4.7 string 0x05
ASIC.4.8 string 0x01
ASIC.4.26 string 0x23
ASIC.2.11 string 0x02
ASIC.2.12 string 0x0a
ASIC.4.9 string 0x0f
ASIC.2.13 string 0xdb
ASIC.2.14 string 0x02
ASIC.2.15 string 0x20
ASIC.2.16 string 0xd2
ASIC.1.0 string 0x04
ASIC.1.1 string 0x05
ASIC.2.17 string 0x80
ASIC.2.18 string 0x30
ASIC.1.2 string 0x06
Have modifuied AIDA@DESPEC ASIC seetings and saved using DB key 2019Dec19-16.19.51 |
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Thu Oct 21 16:18:51 2021 |
OH | FEE and Adaptor board groundings | During investigations into the noise today by NH and OH a couple of findings were made on the grounding of the FEEs and Adaptor boards.
- The adaptor boards have no connection to the FEE ground over the ERNI connector
- Currently we are providing one via a ground cable between the FEE Al cooling and the Lemo ground on the adaptor board
- The Al cooling plate is not electrically isolated from the copper plate on the ASIC and both are connected to the electrical ground on the FEE
- Verified with 0 resistance between plate and HDMI ground shield
- The FEE is electrically isolated from the frame but when cabling is connected they show 0 resistance
- With electrics disconnected but water still connected they show 200kOhm
- With the bias core going to FEE14 and the braid going to FEE8 better performance in FEE14 is obtained by disconnecting FEE8 adaptor board from the ground
- The cost of this is the rate of FEE8 goes up to 300k
- It is essential to have the adaptor board ground on the FEE ground but unsure why having both adaptor boards connected to their respective grounds makes one worse
- The resistance between all FEEs is not zero. Some show a 5Ohm and some show a 35Ohm resistance between each other
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