titles_pcaw

                              Titles: PCAW
                              ============
 
    Contact:  J. Cameron, Oxford.
 
    Revision History:-
    ================
 
    3.02  J. Cameron       First version


    THIS BANK IS NOW OBSOLETE see titles bank WPCA

    The bank number specifies which crate the calibrations are for.
    The bank numbers run from 0-18.

Titles Files
------------

    These are of the form   pcaw_yyyymmdd_hh.dat
 
Verification
------------

Description
-----------
 
    Holds PCA walk information

Data Words
----------

    Data types: B(bit), I, F, D(double), H(hollerith 4 char)

    The banks consist of a 10 word header followed by the data.
    No mnemonics have been defined.

    For WPCA version 1:
    -------------------

    Header:

    Word      Type    Description
    ----      ----    -----------

    +1        I       Crate number (duplicate of bank number)
    +2        I       Version number of bank.
    +3        I       Number of words per tube.
    +4-10     I       Spare.

    Data:

    offset = 10 + icons(lnk+3)*(icard*32+ichan)
    Where 10 is the header size and icons(lnk+3) is the number
    of words per tube.
    twalk = a+exp(c**2*(qhs-b))

    Word      Type    Description
    ----      ----    -----------

    offset+1  I       a (see above)
    offset+2  I       b (see above)
    offset+3  I       c (see above)
    offset+4  I       quality word
                      = 1 : OK
                      = 2 : Nhits < KTPCA_MIN_HIT
                      = 3 : Number calibrated < KTPCA_MIN_HIT
                      = 4 : There are too many odd cells
                      = 5 : Number in fit < KTPCA_MIN_HIT
                      = 6 : Fit failed
                      +10 : Fitted but fit parameters unusual
                      +100 : Fitted but chisquared unusual
                      +1000 : Fitted but threw away too many points
                      LowGain +0.1, FecD +0.2, Owl +0.3