Recent Result of TOF Monitor System Qian LIU

Outline  Ref-PMT  Barrel TOF  End cap TOF

Ref-PMT

Barrel Single TOF

Barrel TOF Q

Barrel TOF Q mean

Barrel TOF T

Barrel TOF T sigma

Barrel TOF T sigma after Q-T

 The two dead east TOF counters have been fixed.  Q mean is lower: BIW36 (808), BIW48 (603), BIW49 (761), BIW83 (952), BOE66 (879)  Q mean is higher: BIW6(2520), BOW7(2604)  T sigma is higher: BOE66(35)

End cap single one

End cap Q Total 4 dead Channels! Pre-amp?

End cap Q mean

End cap T

End cap T sigma

End cap T sigma after Q-T

Discussion  Tuning the End cap HV.  Regular run (including in the BESIII calibration run?)  Temperate data base access.  HV data base access.

Thanks!