From: Ian Bearden (bearden@nbi.dk)
Date: Mon Jan 20 2003 - 17:01:28 EST
Hi all, If I have decrypted the DB info correctly (I found this in ConditionsDVM in the RUNDB), the drift velocity monitors say for run 7368: T1: 1.59 T2: 1.62 Assuming that the tpc are numbered 0==TPM1, 1==TPM2, 2==T1, 3==T2. If this is wrong, I hope Ramiro will correct me. I do not see any with a vdrift as high as 1.79, and when I did the tracking for some earlier runs with 1.8 as vdrift I got a horrible result, while using 1.6 (for both T1 and T2) worked well. Hope this helps, Ian -------------------------------------------------------------------- | I.G. Bearden | | Niels Bohr Institute Tb 3 email: bearden@nbi.dk | | Blegdamsvej 17 phone: (+45) 35 32 53 23 | | Kobenhavn O FAX: (+45) 31 42 10 16 | | Danmark Www: http://www.nbi.dk/~bearden | -------------------------------------------------------------------- -----Original Message----- From: owner-brahms-soft-l@bnl.gov [mailto:owner-brahms-soft-l@bnl.gov]On Behalf Of Peter H. L. Christiansen Sent: 20. januar 2003 21:02 To: BRAHMS-SOFT-L Subject: TPC drift calibrations Hi Added the scripts for TPC drift velocity calibrations of T1 and T2. I calibrated run 7374 : v_T1 = 0.00179248 cm/ns v_T2 = 0.00161696 cm/ns I don't know how this compares to the DVM's. I found that in the T2 fibres the order had been changed and modified the calibration script to have this order. The calibrations looks good. Hope that someone will check in the TPM1 and TPM2 part. Cheers Peter -- :-) --------------------------- )-: Peter H L Christiansen @ NBI EMAIL : pchristi@nbi.dk OFFICE : Tb1@NBI (353 25269) HOME : Vesterbrogade 204, 2. tv PHONE : 40840492(mob.) :-D --------------------------- \-:
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