the dose rate at a negative decay time

From: Yuanjie Bi (biyuanjie@tsinghua.org.cn)
Date: Thu Aug 16 2007 - 08:53:11 CEST

  • Next message: Francesco Cerutti: "Re: the dose rate at a negative decay time"

    Dear FLUKA user,

    (1)I use a negative decay time to score the neutron and gamma dose rate during irradiation, but FLUKA gives me the dose rate at the end of irradiation instead. I don't know why, are my following descriptions right?

    * 10days 5uA
    IRRPROFI 864000.0 3.12D+13
    RADDECAY 1.0 0.0 3.0 0.0 99999 0.0
    DCYTIMES 0.0 3600.0 28800.0 86400.0 604800.0 2592000.0
    DCYTIMES -1000.0
    USERWEIG 1.0
    DCYSCORE 7.0 EWT74Cn EWT74Cn USRBIN
    USRBIN 10.0 NEUTRON -40.0 100.0 100.0 0.5EWT74Cn
    USRBIN -100.0 -100.0 -0.5 100.0 100.0 10.0&
    DCYSCORE 7.0 EWT74Cp EWT74Cp USRBIN
    USRBIN 10.0 PHOTON -42.0 100.0 100.0 0.5EWT74Cp
    USRBIN -100.0 -100.0 -0.5 100.0 100.0 10.0&

    (2)If the irradiation parameters and cooling times are not given, the gamma dose rate scored by usrbin includes radiation resulting from radioactive decay or not?

    (3) Is the result difference between 64bit PC and 32bit one?

    I hope someone could give me some comments.
    Many thanks for your help

    ====================================================================
    Best regards

    Yuanjie Bi
    BRIF Cyclotron
    CIAE
    2007-08-16


  • Next message: Francesco Cerutti: "Re: the dose rate at a negative decay time"

    This archive was generated by hypermail 2.1.6 : Thu Aug 16 2007 - 12:04:39 CEST