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:

Wed May 19 06:59:33 2021

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08:00 OH Takes over for CA
      Thresholds 0xc for p+n and 0x19 for n+n ASICs 1-3 and 0x64 for n+nASIC4

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

Max average dead time in R14_586 3.2% which is 9.6% on spill
       Stable from yesterday

10:02 System wide checks. All ok expect WR
	
		 Base 		Current 	Difference
aida05 fault 	 0x500 : 	 0x554 : 	 84  
White Rabbit error counter test result: Passed 15, 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

Statistics - Attachment 1
      Temp - attachment 2
      Bias and leakage currents ok - Attachment 3

11:17 A new run was started as the microspill has been changed. I believe to optimise FRS deadtime.
11:45 They are still working on it

12:05 Beam off for a bit while they optimise spill

12:15 System wide checks ok expect WR
	
		 Base 		Current 	Difference
aida05 fault 	 0x500 : 	 0x567 : 	 103  
White Rabbit error counter test result: Passed 15, Failed 1

Statistics - Attachment 4
     Temp - Attachment 5
     Bias - Attachment 6

13:11 Magda has said that the changes to the spill structure only gained them a few percent in dead time
      Further changes could be done, but would take at least two hours

13:19 Dead time following the current spill changes
	R14_648	R14_649	R14_650	R14_651	Sum DT (S)   Avergage DT (%)   On Spill DT (%)
FEE	244.823	252.168	247.155	240.421	984.567		
0	0.063	0.025	0.105	0.096	0.289	     0.029353005	0.088059015
1	3.981	4.907	4.17	2.484	15.542	     1.578561947	4.73568584
2	0.01	0	0.121	0.779	0.91	     0.092426417	0.277279251
3	3.625	2.972	2.766	3.335	12.698	     1.289704002	3.869112006
4	0.088	0.1	0.12	0.136	0.444	     0.045095966	0.135287898
5	9.392	5.798	9.835	8.01	33.035	     3.355282068	10.0658462
6	0.153	0.075	0.01	0.517	0.755	     0.076683456	0.230050367
7	7.4	7.565	7.703	6.415	29.083	     2.953887343	8.86166203
8	0.221	0.606	1.321	0.539	2.687	     0.272911849	0.818735546
9	0	0	0	0	0	     0          	0
10	1.381	0.368	1.196	1.091	4.036	     0.409926394	1.229779182
11	0.066	0.025	0.039	0.017	0.147	     0.014930421	0.044791264
12	0.166	0.041	0.062	0.024	0.293	     0.029759275	0.089277825
13	0	0	0	0	0	     0          	0
14	0.71	0	0.005	0.074	0.789	     0.08013675	        0.240410251
15	0.239	0.17	0.208	0.286	0.903	     0.091715444	0.275146333
16	0	0	0	0	0	     0          	0

14:03 System wide checks ok - WR same difference as before
      Statistics - attachment 7
      Temperatures - attachment 8
      Bias and leakage currents - attachment 9

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