BRAHMS Aug/99 Run Summary
 J.H.Lee

 The data taken from the RHIC commissioning run are currently located in
 the disk /opus/disk1/daq/spool/  mounted on pii machines.  They are also
 stored in HPSS system. The "raw" data files stored in the local disk will
 be eventually removed.  Creating  RDO files from the raw data files are
 in progress.   The time period for the data taken is from Aug. 1st to
 Aug. 16th.  For a brief history of the commissioning run,  see  here .
 A summary of the detector installation and preformance for the run
 can be found  here .

 The name of the data file contains run number and sequal number for
 the corresponding runs.  The event number increments within a run.
 There are run summary files (extention .txt) corresponding to data files
 (extention .dat).  It contains a starting and an ending time  (in UNIX time),
 number of events,  trigger types and numbers (for detailed descriptions see
 here ) before and after pre-scalers.  Figures summarizing the runs can be found in
 here .

 Some runs  have been identified to help choosing "good" runs to look at by requiring
 Number of events > 10000 and
 (Number of Syncronization trigger/Number of Total trigger) < 0.1.
 (These assumptions are just for choosing runs to look at, and  shouldn't be
 taken seriously!)

 The file names and number of events for the "good" Blue Ring Data
(for the life time of the beam in blue ring > 15min.)

run000210seq159.dat 10637
run000210seq162.dat 10807
run000210seq167.dat 17195
run000210seq168.dat 16725
run000210seq169.dat 15249
run000210seq170.dat 13850
run000210seq171.dat 11969
run000217seq001.dat 23398
run000217seq002.dat 15962
run000217seq003.dat 11017
run000217seq004.dat 21843
run000217seq005.dat 15436
run000217seq006.dat 18623
run000217seq007.dat 23582
run000217seq008.dat 16198
run000217seq012.dat 17719
run000217seq013.dat 21212
run000217seq014.dat 28191
run000217seq019.dat 10888
run000217seq021.dat 11669
run000217seq022.dat 16585
run000217seq023.dat 14043
run000217seq024.dat 25757
run000217seq025.dat 15693
run000217seq028.dat 20740
run000217seq029.dat 10871
run000217seq030.dat 22072
run000217seq031.dat 20554

The adc distribution for the tube #5 of the Right-BB counter for the selected
runs (run 217)  looks like  this .

The file names and number of events for the "good" Yellow Ring Data
(for beam in the yellow ring ~ 120 turns)

run000230seq002.dat 28438
run000230seq003.dat 21988
run000231seq000.dat 21098
run000232seq000.dat 28643
run000232seq001.dat 11844

The adc distributions for the tube #7-10 of the Left-BB counter for the selected
runs above look like  this .