ELOG CARME

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

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Entry time:

Tue Mar 1 03:34:28 2022

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Temperature setpoint = 116 k

Detector IN potentiometer = 34.89 mm

Rutherford rate is reduced from previous entries. Avergae peak height appears to be ~50 counts. Fluctuations in peak height and E4 pressure are quite high. Temperature has been cycled, nozzle position has been optimised and different temperatures have been trialled however density cannot be maintained at a decent level.&nbsp;

Merger OK

Data rate ~ 1500 kb/sec

Leakage current = 3.2295 uA

Temperatures OK

System checks OK - wr fails

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp; Base &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;Current &nbsp;&nbsp; &nbsp;Difference 
aida01 fault &nbsp;&nbsp; &nbsp; 0xab60 : &nbsp;&nbsp; &nbsp; 0xab8c : &nbsp;&nbsp; &nbsp; 44 &nbsp; 
aida02 fault &nbsp;&nbsp; &nbsp; 0x88d3 : &nbsp;&nbsp; &nbsp; 0x88fe : &nbsp;&nbsp; &nbsp; 43 &nbsp; 
aida03 fault &nbsp;&nbsp; &nbsp; 0x23aa : &nbsp;&nbsp; &nbsp; 0x23d6 : &nbsp;&nbsp; &nbsp; 44 &nbsp; 
aida04 fault &nbsp;&nbsp; &nbsp; 0x15d7 : &nbsp;&nbsp; &nbsp; 0x1603 : &nbsp;&nbsp; &nbsp; 44 &nbsp; 
aida05 fault &nbsp;&nbsp; &nbsp; 0x2f03 : &nbsp;&nbsp; &nbsp; 0x2f0f : &nbsp;&nbsp; &nbsp; 12 &nbsp; 
White Rabbit error counter test result: Passed 0, Failed 5

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

Avg ring pressure = 4.4 E-10 mbar

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