Re: FLUKA: Too big material number
On Tue, 5 Jun 2001, Fan Lei wrote:
> Another thing i noticed is that it seems the continuing USRBDX card has to
> be inputed in formatted form, regardless whether there is a FREE statement
> before it or not.
You are right, you have spotted an error there. It will be fixed in
the next release. Sorry, and thank you for finding it: as I said before,
you seem to be the only user so far who has tried the free format option.
Concerning the geometry error messages, it is possible that they are
connected with the unusual size of your geometry. We are still
investigating them.
One small remark: it is none of my business, but I have the
impression that you are trying to simulate a cosmic air shower
produced by a proton entering the atmosphere (if I am wrong, please ignore
what follows).
Only, the direction of the incident particle in your input is along the Z
axis, which is directed AWAY from the center of the Earth. You should
set SDUM = NEGATIVE in card BEAMPOS in order to have it directed as -Z.
Regards,
Alberto
--
Alberto Fassò
CERN-EP/AIP, CH-1211 Geneve 23 (Switzerland)
Phone: (41 22) 767 2398 Fax: (41 22) 767 9480 Alberto.Fasso@cern.ch
Partial thread listing:
FLUKA: Question
foucher