Re: [fluka-discuss]: Core dump with heavy ion beam

From: Jeremy Northum <jnorthum_at_gmail.com>
Date: Mon, 25 Aug 2014 11:59:38 -0400

Dear FLUKA Community:

Any help with this problem would be very much appreciated.

Thanks,
Jeremy Northum


On Wed, Aug 6, 2014 at 11:39 AM, Jeremy Northum <jnorthum_at_gmail.com> wrote:

> Dear FLUKA Community:
>
>
>
> I have created a simple model with cylindrical symmetry to estimate the
> dose equivalent rate resulting from a heavy ion beam striking a carbon
> target an a copper beam dump. Steel, borated polyethylene, and concrete
> shielding are present. I have a USRBIN tally set to score dose equivalent
> outside of the concrete.
>
>
>
> First scenario:
>
> Beam: Ca-48
>
> Energy: 261 MeV/u
>
> Target thickness: 0.914 cm
>
> Result: FLUKA runs without any problems
>
>
>
> Second scenario:
>
> Beam: U-238
>
> Energy: 202.1 MeV/u
>
> Target thickness: 0.171 cm
>
> Result: FLUKA crashes with “Program received signal SIGFPE: Floating-point
> exception - erroneous arithmetic operation.”
>
>
>
> The only difference between the two input files is the beam energy in
> BEAM, the beam Z and A in HI-PROPE, and the target thickness in RCC TGT.
> No other changes were made to the input file with the uranium beam.
>
>
>
> I am using the most recent version of FLUKA with gcc version 4.7.1. The
> executable was linked with the ldpm2qmd script. I do not have any geometry
> errors when I open these input files in flair. The files for each case are
> attached.
>
>
>
> Any help would be appreciated.
>
>
>
> Thanks in advance,
>
> Jeremy Northum
>
Received on Mon Aug 25 2014 - 19:19:16 CEST