Re: Help with RADDECAY/RESNUCLE problem

From: Stefan Roesler (
Date: Tue Sep 12 2006 - 00:08:34 CEST

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    Hi Nicole

    I think that association of cooling time and detector is not correct. The
    indexing is separate for each type of detector, e.g. it would be index '1'
    for your RESNUCLE detector (since you have only one detector of that type
    defined) and not '3', e.g.

    DCYSCORE 5.0 1.0 1.0 RESNUCLE
    RESNUCLE 1.0 -49.0 4.0 1000.0 BQDET

    Also your indexing for USRBDX seems not correct: detector nFluenUD carries
    index '1', PHOTON1 is '2' etc.

    I just ran a testcase with 10 times less particles and find some
    non-zero numbers in PHOTON1 which is actually associated with cooling time
    4. Please let me know if this solves your problem.


    On Mon, 11 Sep 2006, Nicole Patricia Lee Pratt-Boyden wrote:

    > Hello all,
    > I'm attempting to measure the activity resulting from a 2.8 proton beam
    > irradiating a Lithium-7 target. I've looked at the past FLUKA courses
    > online and am consequently using the RESNUCLE and DCYSCORE cards on a
    > region of the Lithium target. So far I'm getting no activity reported
    > whatsoever.
    > Any help/pointers as to what I'm doing wrong would be greatly
    > appreciated as I'm a complete novice in FLUKA and beginning to get a
    > little confused!
    > Best regards,
    > Nicole Pratt-Boyden.

    Stefan Roesler
    CH-1211 Geneva 23
    Phone:  +41-22-7679891
    Fax:    +41-22-7669639

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