ELOG DESPEC

AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

DESPEC

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Entry time:

Fri Apr 16 07:19:00 2021

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08:19 System wide checks all ok
      Baselines reset on WR and FPGA checks for the start of the day

Statistics ok - attachment 1
      Temperatures ok - attachment 2
      Bias and leakage currents ok - attachment 3

09:03 During the reset last night I repaired the OptionsDB for aida02 from the Options.Pristine directory.
      No corruptions have been noted since

10:10 System check, clcock and ADC ok

Base 		Current 	Difference
aida07 fault 	 0xfb3a : 	 0xfb3d : 	 3  
White Rabbit error counter test result: Passed 11, Failed 1

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 and memory check ok

Statistics ok - attachment 4
      Temperatures ok - attachment 5
      Bias and leakage currents ok - attachment 6

10:39 Fission fragments were punching through AIDA
      This was even with the maxmimum degraders in place
      They are now placing a thick plate in front of AIDA to block the fragments while they beam tune.

11:38 They have found the issue with the degrader and have corrected it.
      We now see next to no implants in AIDA as expect.
      Histograms reset at around 11:35
      Layout 2 shows very few implants in 5 minutes - attachment 7

12:08 The high implantation rates of ions into AIDA is clearly seen in the large transients on the leakage currents - attachment 8
      This was a large amount of dose going into the detectors which we should try to avoid

13:25 system check, clock and ADC ok

Base 		Current 	Difference
aida05 fault 	 0xc879 : 	 0xc87b : 	 2  
aida06 fault 	 0x323c : 	 0x323e : 	 2  
aida07 fault 	 0xfb3a : 	 0xfb3f : 	 5  
aida08 fault 	 0xd3d6 : 	 0xd3d8 : 	 2  
White Rabbit error counter test result: Passed 8, Failed 4

Statistics ok - attachment 9
      Temperatures ok - attachment 10
      Bias and leakage currents ok - attachment 11
FPGA and memory check ok

16:10 system check, clock and ADC ok

Statistics ok - attachment 12
      Temperatures ok - attachment 13
      Bias and leakage currents ok - attachment 14
FPGA and memory check ok

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Attachment 1: