08:00 OH Takes over
Statistics still look good from yesterday. Rate is still down.
Dead time in FEEs 2 and 4 is 2.04%
System wide checks clock ok
Base Current Difference
aida05 fault 0x4da : 0x500 : 38
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
*Baseline reset*
FPGA check ok
Stats - attachment 1
Temp - attachment 2
Bias - attachment 3
08:11 With the decreased noise I am investigating whether we can lower the thresholds on DSSD2 y strips.
I have set them to 0x19 on ASICS 1-3 and 0x64 on ASIC4
The results of the test appear to indicate that it is the network link that we are saturating causing dead time
*** Before After
FEE DT (s) Dead time % DT (s) Dead time %
0 0.013 0.004184451 0.026 0.010025681
1 6.352 2.04458693 4.097 1.57981599
2 0.295 0.09495484 0.292 0.112596112
3 6.349 2.043621288 8.255 3.183153771
4 0.021 0.006759497 0.03 0.011568094
5 0.285 0.091736032 3.388 1.306423377
6 0.02 0.006437616 0.149 0.057454865
7 1.219 0.392372712 2.133 0.822491459
8 1.137 0.365978485 0.457 0.176220627
9 0 0 0 0
10 1.633 0.525631369 1.545 0.595756823
11 0.061 0.01963473 0.166 0.064010118
12 0.059 0.018990968 0.085 0.032776265
13 0 0 0 0
14 0.016 0.005150093 0.023 0.008868872
15 0.282 0.09077039 0.168 0.064781324
Note that the dead time for FEE6 and 8 remains fairly low but the dead time for FEE4 has increased
09:00 They are stopping the run to decrease the bias on the bPlast detector
09:25 No noticable change in AIDA
They will now begin to change the spill structure.
09:46 While they are optimising the 1s spill structure raised the thresholds of FEE6 and 8 back to 0x20. Will start from here when optimising the thresholds post spill change
10:21 Beam is back on AIDA
10:39 System wide checks.
- ADC calibration check failed (this is anticipated because waveforms are off).
- 1 Failed test in White Rabbit:
Base Current Difference
aida05 fault 0x500 : 0x506 : 6
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
- All other systems passed
11:00
Stats - attachment 4
Temp - attachment 5
Bias - attachment 6
12:46 System wide checks
- ADC calibration check failed (this is anticipated because waveforms are off).
- 1 Failed test in White Rabbit:
Base Current Difference
aida05 fault 0x500 : 0x50b : 11
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
- All other systems passed
14:36 System wide checks
- ADC calibration check failed (this is anticipated because waveforms are off).
- 1 Failed test in White Rabbit:
Base Current Difference
aida05 fault 0x500 : 0x50f : 15
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
- All other systems passed |