! BANKname BANKtype ! Comments ! TABLE FPLC ! Local coordinates and data for hits ! in Planar Drift Chambers. ! TEMPORARY. Parallel to FRPE bank. ! ATTributes: ! ----------- !COL ATT-name FMT Min Max ! Comments ! 1 ICLNUM I ! Drift cell number 2 DRIFT F ! Abs drift distance (cms) 3 ERRDRF F ! Error in drift distance (cms) 4 ISGNW I ! Bit 0 not used. ! Bit 1 not used. ! Bit 2 0=>O.K. 1=> dubius drift ! Bits3-6 not used. ! Bit 7 0=>O.K. 1=> bad timing ! don't use. 5 CHARGE F ! Charge integral 6 DRIFTP F ! Drift distance for +side tracks 7 DRIFTM F ! Drift distance for -side tracks ! ! NOTES: ! ! The drift distances are NOT signed. ! ! DRIFT is the drift distance to be used in conjunction with ! the EFFECTIVE stagger when it is not known which side of the ! wire plane the track went. There are then 2 possible space ! points given by: ! EFFECTIVE stagger + DRIFT ! and EFFECTIVE stagger - DRIFT ! ! DRIFTP and DRIFTM should be used when the drift sign is known: ! Geometric Stagger + DRIFTP ! or Geometric Stagger - DRIFTM ! ! >>>> Exception: If drift time comes out negative after ! subtraction of T0, then DRIFTs will be negative. ! They should however be used as described above. ! ! 1) If there was a close preceding hit or long leading edge, ! the drift resolution is degraded and Bit 2 in ISGNW set. ! 2) Bit 7 is set if the pulse had insane drift times or zero ! measured charge. Such pulses should never be used. ! 3) So: ! ISGNW =0 => Pulse was O.K. Even errors might mean ! something. ! ISGNW > 0 => Pulse was problematic but can be used. ! Errors have been inflated in ad hoc way. ! ISGNW > 127 => Don't even think about using this hit. END TABLE