Re: please help me

From: Alberto Fasso' (fasso@SLAC.Stanford.EDU)
Date: Fri Jan 19 2007 - 01:05:29 CET

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    Even if ELCFIELD would be operational, it would not help much.
    FLUKA can calculate the energy absorbed in the gas and the electrons
    liberated (although not all of them, but only those with energy > 1 keV),
    but it would not be sufficient to track the electrons in the electric
    field, the current in the chamber is made also by the ions. And it is necessary
    to take into account the recombination.
    There are two ways to handle ionization chamber problems:
    - to calculate just the energy deposition, and to derive ionization and
      recombination corrections separtately using some formula. See for instance
      the attached Note, sections 3 and 5
    - to use specialized programs such as GARFIELD, see:
      http://garfield.web.cern.ch

    Alberto

    On Wed, 17 Jan 2007, masoumeh jafari wrote:

    > I want to simulate Roos ionization chamber by Fluka code.Would you please
    > help me : 1-How to define the electric field of this parallel plate
    > ionization chamber(Since in fluka manual ELCFIELD is not yet operational.).
    > 2- How to use output cards to simulat the detector output.
    >

    -- 
    Alberto Fasso`
    SLAC-RP, MS 48, 2575 Sand Hill Road, Menlo Park CA 94025
    Phone: (1 650) 926 4762   Fax: (1 650) 926 3569
    fasso@slac.stanford.edu
    
    



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