Re: DetectorParameters.txt

From: Christian Holm Christensen (cholm@hehi03.nbi.dk)
Date: Fri Nov 22 2002 - 07:23:50 EST

  • Next message: Flemming Videbaek: "lullaby"
    Hi Flemming et al, 
    
    "Flemming Videbaek" <videbaek@sgs1.hirg.bnl.gov> [Re: DetectorParameters.txt] wrote concerning
    @s> [Re: DetectorParameters.txt] wrote concerning
      Thu, 21 Nov 2002 16:34:56 -0500 
    ----------------------------------------------------------------------
    > Ramiro is right the numbers are on the web-page. Truls is also right
    > because the DetectorParameters.txt is wrong, but in fact the
    > distance is not used. The actual rowpositions are given accurately
    > in the params too. 
    
    Isn't it about time we scratch the file `DetectorParameters.txt'?  We
    should really use the DB for that instead.   One way of separating
    simulation parameters from analysis parameters, is to assign negative
    or very numerically small/large run numbers to `simulation runs'. 
    
    Please note, however, that some numbers in the
    `DetectorParameters.txt' are used in the analysis for the TMA and
    SMA.  Basically, the number of strips per SMA detector, number of
    detectors in a row, ring of the TMA and SMA, and similar.   These
    numbers should really be stored in the geometry database, not in a
    calibration database or ASCII file.  Kris, is the geometry database
    flexible enough to handle such auxiliary information? 
    
    > A more severe issue on the DetectorParameters.txt is that someone
    > has  decided to have copies with crash and in xtpi. 
    
    I put the copy into CRASH, as it was needed there.  The point was,
    that we needed to make sure that the file was around on the CRS farm,
    and hence a copy was needed.  Further, there are one file for the 2000
    run and one for the 2001 run.   To automate the selection of the
    appropriate file based on the run number, it was necessary include the
    files in CRASH.  If we stored the numbers in a database, then we
    wouldn't need all of this.   
    
    As for `xtpi' - "I kno' notin', I stupid, I come from Barrrthhhelona!"
    
    > I think these secondary should disappear - they are not up todate,
    > and there should only be one place where these constants should be
    > maintained. 
    
    With the tight coupling between BRAT version and installations this is
    (almost) possible.  The main problem is the automatic selection in
    CRASH.  
    
    > 2002-11-21  Flemming Videbaek  <videbaek@lullaby.brahms.bnl.gov>
    
    What's this machine?   
    
    Yours, 
    
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