Re: Magnet gaps in brag

From: Flemming Videbaek (videbaek@sgs1.hirg.bnl.gov)
Date: Tue Jun 11 2002 - 10:56:48 EDT

  • Next message: Pawel Staszel: "Re: Magnet gaps in brag"

    Hi Djamel,
    
    I strongly trust the magnets in Brag are correct unless someone else has
    modified default settings
    I have a meeting at 11-12.30 and can take a further look later.
    
    Flemming
    
    ------------------------------------------------------
    Flemming Videbaek
    Physics Department
    Brookhaven National Laboratory
    
    tlf: 631-344-4106
    fax 631-344-1334
    e-mail: videbaek@bnl.gov
    ----- Original Message -----
    From: "Djamel Ouerdane" <ouerdane@nbi.dk>
    To: "brahms-dev-l" <brahms-dev-l@bnl.gov>
    Sent: Tuesday, June 11, 2002 9:55 AM
    Subject: Magnet gaps in brag
    
    
    > Hi,
    >
    > I've just checked out brag (after the latest magnet gap update) and
    > checked some positions in the BFS. The gap length along the X direction
    > doesn't match for D3 and D4 :
    >
    >                D3        D4
    >   SQL DB :     38        40
    >   BRAG   :     40.005    44.625
    >
    > D5 looks fine.
    >
    > The positions of the DCs and magnets are all wrong ( from 1 cm to 4 cm
    > offsets in X in some cases), (the angles too but it's an easy correction).
    > I can spend a lot of time tuning the parameters "refdist" and
    > "clearance"  for each of the detectors unless someone tells me how to
    > related these quantities to the positions given in the geo output
    > (global). That's urgent.
    >
    > Thanks.
    >
    > Djam
    >
    >
    > --
    > Djamel Ouerdane ------------------------------------------o
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    >
    



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