Offline Shift System - HELP

Tape copy (ACQCOPY)

This stage performs two functions. It copies the input tape to disk for effective access in subsequent steps. The second function is to monitor the trigger records for inconsistencies. For quick turnaround, the KAL PASS1 & PASS2 and LUM bhabha filters are run at this stage.

Examine ACQ Statistics to see if any subsystem data is missing.

Explanation of File Contents:

Line in File

Description

Number of events with Subsystem data These lines give the number of events containing subsystem data. They need not be equal due to fiducial events sent up.
Pol VXD DC CRID KAL WIC
600 1097 1482 1482 1511 1097
RUN_NUMBER 38605 obvious
EVTS_SEEN 111 number of events passing PASS1 filter
HADRONS 0 unused
Filter Pass Rate reused from PASS2. Only the EIT2 energy filter is run in this stage of processing. The other four number are unused.
Energy **** WAB Muon Tau
93 0 0 0 0
Hadrons_&_HAD_trigger= 88 EIT2 & CDC-on: CDC-on rate for found Z's
EIT_&_HAD_TRIGGER= 87 EIT2 & Hadron trigger fired: hadron trigger on-rate for Z's
Date 1317 JY_Z_day2 0 JY_CDC_day2 0 records how many EIT2 & EIT2.CDC Z's spilled over into the next calendar day. The date number is a technicality: it is the number of days from Feb 1, 1994.
All_Bhabha= 384 Precise_Bhabha 200 Num_evts= 1897 Precise+Gross bhabhas; precise bhabhas; (Precise bhabhas/EIT2 Z) ~ 2.1; # events seen.

Page Owner: Tony Johnson Updated: November 14, 2001