Low energy neutron xsec not found for some media

From: me@marychin.org
Date: Wed Dec 13 2006 - 17:48:29 CET

  • Next message: Lindley Winslow: "Error From USYSUW.f"

    Hi,

    I get the above error for aluminium. My inp file is given below. I
    haven't used LOW-NEUT nor GLOBAL. Which card is asking for low energy
    neutron? How should I get the simulation running please?

    Sorry for this noise - I'm new to FLUKA.

    Many thanks.

    TITLE
    Photons in a sea
    PHOTONUC 2.0 0.0 0.0 3.0 26.0
    BEAM -29.5E-3 1.E4 PHOTON
    BEAMPOS 0.0 0.0 0.0
    GEOBEGIN
    COMBNAME
       0 0 A simple sea
    SPH B1 0.0 0.0 0.0 +500000.0
    SPH B2 0.0 0.0 0.0 +500001.0
    END
    R1 5 +B1
    R2 5 -B1 +B2
    END
    GEOEND
    MATERIAL 13 27 1. 26.0
    ALUMIN
    ASSIGNMAT ALUMIN R1
    ASSIGNMAT BLCKHOLE R2
    USROCALL
    USERDUMP 100 7.0 1.0 dump
    RANDOMIZE 1.0
    START 10000
    STOP

  • Next message: Lindley Winslow: "Error From USYSUW.f"

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