Dear Emma
Please copy fluka-discuss to your questions; I would leave the answer to such generic requests to the community.
In addition, you can also find a rather comprehensive source of information in the lectures of the FLUKA course
http://www.fluka.org/fluka.php?id=courses&sub=ALL
Cheers
Stefan
From: Stewart, Emma <e.stewart17_at_imperial.ac.uk>
Sent: 30 July 2018 13:16
To: Stefan Roesler <Stefan.Roesler_at_cern.ch>
Subject: Re: [fluka-discuss]: Proton transport through spacecraft
Dear Stefan
Thank you so much for your quick response! I was under the impression that flair was only for users with windows operating systems but obviously not, I've now re-done the input file with flair and am now able to run without errors, so thank you.
I've been going through the output file and trying to interpret it but I'm struggling a bit. I basically modelling a proton beam through the materials of a nuclear rocket and I just want to calculate the neutron flux inside the core of the rocket, but I'm not sure how to get the program to do this. This problem has been done a lot before with many people trying to calculate the neutron flux inside a spacecraft to measure astronaut doses. I'm new to FLUKA and my knowledge of particle physics isn't ideal so any help would be much appreciated. I've attached the input file that I have so far.
Thank you
Emma Stewart
PhD Student
Nuclear Engineering Group
Imperial College London
Exhibition Road
London
SW7 2AZ
________________________________
From: Stefan Roesler <sroesler_at_mail.cern.ch<mailto:sroesler_at_mail.cern.ch>>
Sent: 24 July 2018 14:59:05
To: Stewart, Emma
Cc: fluka-discuss_at_fluka.org<mailto:fluka-discuss_at_fluka.org>
Subject: Re: [fluka-discuss]: Proton transport through spacecraft
Dear Emma
I suggest that you set up your input with flair or at least use it for
checking. There are several mistakes aleady up to the geometry. Here are
just a few of them
- GEOBEGIN shoulkd be followed by a second line and not a comment line,
for example
GEOBEGIN COMBNAME
0 0 A simple three region rocket inside a vaccum
- you use free format for the geometry, thus all values/entries in a card
must be separated by blanks. It is not the case here between the name of
the RCC and the first number
RCC PresShell20.0 0.0 0.0 0.0 0.0 +122.0 152.0
- you define RCC PresShell but use in the body definition PresShe1 ...
- body PresShe2 is not defined
When you load the input with Flair these mistakes are highlighted and thus
easier to spot
Cheers
Stefan
On Tue, 24 Jul 2018, Stewart, Emma wrote:
>
> Hello
>
>
> I'm fairly new to FLUKA but I have managed to run the example file without
> any errors. My problem is proton transport through the materials of a
> spacecraft to measure the neutron flux. I've written the input file as best
> I can, which is attached. I'm assuming that I will need the LOW-NEUT option
> but I was trying to make it work like this first.
>
>
> When I run the input file above I get the following error in the .log file:
>
>
> At line 229 of file flkcgi.f
>
> Fortran runtime error: Bad integer for item 1 in list input
>
>
> From lots of googling, it seems like this is a problem with the compiler and
> not the input file but I could be wrong, any help would be appreciated!. I'm
> using a mac with gfortran 7.2.
>
>
> Thanks
>
>
> Emma Stewart
>
> PhD Student
>
> Nuclear Engineering Group
>
> Imperial College London
>
> Exhibition Road
> London
>
> SW7 2AZ
>
>
>
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Received on Mon Jul 30 2018 - 16:18:06 CEST