RE: Lack of USRBDX Results

From: Joachim Vollaire <joachim.vollaire_at_cern.ch>
Date: Wed, 22 Aug 2012 10:42:02 +0200

Dear Aiveen
One possible explanation is that you are attending to score the fluence of
particles between two regions which have no surface in commons, thus the zeroes.
But it is hard to judge without your input file...
Cheers
Joachim

-----Original Message-----
From: owner-fluka-discuss_at_mi.infn.it [mailto:owner-fluka-discuss_at_mi.infn.it] On Behalf Of Scholz, Matthias
Sent: 21 August 2012 15:43
To: fluka-discuss_at_fluka.org
Cc: Aiveen Finn
Subject: Lack of USRBDX Results

Dear Fluka Experts and Users,

I am using Fluka to simulate what happens in a collimator of an FEL and wish to use USRBDX.
However I have problems with USRBDX. It either won't produce results, just blank files
or else 4 columns full of zeroes except for maybe two actual numbers.
I am wondering whether it's how I go about making the areas that will be hence defined in
the BDX card however I have edited these settings with little change in the
results. Originally, I made a 'bullseye' shape of vacuums in the area I want to
measure the particles. Furthermore I have edited the material (eg to helium) of the
vacuums to see if this helps and it does give more results presumably as the
electrons interact with the helium, however in reality this data is not what
I need. I require the amount of energy/number of particles entering and
leaving certain =3D parts of the 'bullseye'.

Thank you in advance.

Best wishes,
Aiveen Finn
Received on Wed Aug 22 2012 - 11:17:31 CEST

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