Re: BB vertex

From: Djamel Ouerdane (ouerdane@nbi.dk)
Date: Fri Dec 14 2001 - 11:14:48 EST

  • Next message: Flemming Videbaek: "more on geometries"

    Hi Hiro,
    
    Concerning the offsets, there is a calibration to do each time a time 
    calibration is done for the BB. We already know that it comes with 
    fluctuation in the slewing fit tails. So, if you get a vertex, given a 
    certain time calibration, but use the vertex offset resulting from a  
    calibration done before or after, you will get a small offset.
    
    That's why I told the guys who filled the DB that each time they commit a 
    BB calibration, they MUST also provide the vertex offset calibration 
    corresponding to the BB calibration committed. And I know that at least 
    Claus is doing it now. So it's coming along...
    
    Djam
    
    -- 
    Djamel Ouerdane ------------------------------------------o
    |  Niels Bohr Intstitute     |  Home:                     |
    |  Blegdamsvej 17, DK-2100 Ø |  Jagtvej 141 2D,           |
    |  Fax: +45 35 32 50 16      |  DK-2200 Copenhagen N      |
    |  Tel: +45 35 32 52 69      |  +45 35 86 19 74           |
    |                  http://www.nbi.dk/~ouerdane            |
    |                  ouerdane@nbi.dk                        |
    o---------------------------------------------------------o
    



    This archive was generated by hypermail 2b30 : Fri Dec 14 2001 - 11:15:43 EST