Re: Zeros values in scoring fission density in uranium with USRBIN card !!!

From: Lutz Moritz (lutz.moritz@triumf.ca)
Date: Tue May 16 2006 - 00:31:02 CEST

  • Next message: Sebastien WURTH: "In what unit are expressed USRBIN results when using deq99c routine and radioactive decay ?"

    Dear Maher,

    The answer to your problem is that you cannot use the high precision
    geometry for scoring fission density with the USRBIN cards. i.e. the
    geometry cannot use values greater than 10 for the WHAT(1) parameter.

    Lutz

    > Dear FLUKA users,
    > I want to score all fissions (particle 219), low-energy fissions
    > (particle 221), and high-energy fissions (particle 220). My target is
    > bombarded by 50 MeV electrons and The geometry of interest is simple,
    > just a cylinder of UC2 along the z-axis. I get reasonable results with
    > the SCORE card (ie. there are positive numbers for the fission density
    > in the target region [2] in the standard output. But when I try to also
    > score the spatial distribution of the fission density with USRBIN card I
    > get only zeros.
    > I don't think there is any problem with my USRBIN cards since with any
    > other quantity scored (like the beam particles or neutron track length)
    > i get good results. I attach my input file and the summary of the
    > standard output and the formatted fortran file.
    > Did my input file missing something to get fission densities !!! i need
    > some helps!.
    > In the fluka-discuss Mailing list Archive this problem had been evoked
    > with 500 MeV protons but i didn't found any public answer.
    > Many Thanks,
    > Maher
    >
    > --
    > ------------------------------------------------
    > Maher CHEIKH MHAMED
    > PhD Student
    > Institut de Physique Nucléaire - Orsay
    > Division Accélérateurs - Groupe Cibles & Sources
    > IPN F-91406 Orsay Cedex
    > Tél : +33 (0)1 69 15 62 25
    > Fax : +33 (0)1 69 15 30 62
    > ------------------------------------------------
    >
    >


  • Next message: Sebastien WURTH: "In what unit are expressed USRBIN results when using deq99c routine and radioactive decay ?"

    This archive was generated by hypermail 2.1.6 : Tue May 16 2006 - 09:40:21 CEST