AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40
  DESPEC, Last 64 days  ELOG logo
ID Date Author Subject
  Draft   Wed Jan 7 02:21:13 2026 BA, AASaturday 14 May

 

Quote:

FEE64 module aida09 global clocks failed, 6
 Clock status test result: Passed 13, 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 aida02 failed
FEE64 module aida06 failed
FEE64 module aida09 failed
FEE64 module aida10 failed
FEE64 module aida13 failed
Calibration test result: Passed 9, Failed 5

If any modules fail calibration , check the clock status and open the FADC Align and Control browser page to rerun calibration for that module

 

White Rabbit error counter test result: Passed 14, Failed 0

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 14, 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

 

  745   Wed Nov 19 10:28:24 2025 JEL, JBAnalysis of AIDA from S100 experiment by JEL

Analysis done by JEL of the AIDA daq with his own time-stitcher -- not the standard one used by DESPEC.

 

- Analysis of 168Dy:

-- Correlation efficiency and stopping layer of ion 168Dy in fully-stripped and hydrogen-like charge-state.

 

 

Attachment 1: aidastop.pdf
aidastop.pdf aidastop.pdf aidastop.pdf aidastop.pdf aidastop.pdf aidastop.pdf aidastop.pdf aidastop.pdf
  744   Thu Nov 13 10:14:50 2025 JB, MPNoise conditions after removal of bPlast cabling

JB has removed unnecessary cables and items from the snout and platform:

- the bPlast cables and booster boards were removed

- crate below the AIDA frame was disconnected from the power supply

- BB7 cables were removed

- power supply for the booster boards was removed

 

We switch on the system and check the noise conditions.

We started up. BIAS OK. TEMPS OK.

Thresholds initially set to 100 keV.

Rates in all FEEs are > 200 kHZ. Attachment 6.

We then checked the pulser peak widths in aida14. --> 192 channels with 1 V 1x attenuation. at 700 keV threshold (attachment 3). At 100 keV threshold the peak width was significantly higher!!! ---> 385 channels (attachment 2)

We checked the rates in the FEEs with the 700 keV thresholds (attachment 11).

Furthermore, we checked the constant noise that appears to be present in the y FEEs aida02,04,06,08. This can be seen in attachment 8 and has been noted in previous elogs https://elog.ph.ed.ac.uk/DESPEC/727

Info on current status of ion catcher: vacuum system is ON, electronics is also on (RF ~2MHz) on the side opposite to the DESPEC setup

Attachment 1: Screenshot_from_2025-11-13_11-17-27.png
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Attachment 2: Screenshot_from_2025-11-13_11-41-48.png
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Attachment 3: Screenshot_from_2025-11-13_11-39-30.png
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Attachment 4: Screenshot_from_2025-11-13_11-34-29.png
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Attachment 5: Screenshot_from_2025-11-13_11-33-38.png
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Attachment 6: Screenshot_from_2025-11-13_11-33-13.png
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Attachment 7: Screenshot_from_2025-11-13_11-29-41.png
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Attachment 8: Screenshot_from_2025-11-13_11-53-18.png
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Attachment 9: Screenshot_from_2025-11-13_11-50-53.png
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Attachment 10: Screenshot_from_2025-11-13_11-47-30.png
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Attachment 11: Screenshot_from_2025-11-13_11-45-30.png
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