Re: number of particles in volume

From: Francesco Cerutti <>
Date: Thu, 15 Apr 2010 11:26:05 +0200

Dear Sergey,

what you search is USRTRACK, which calculates the tracklength of a given
particle type over a region as a function of the particle kinetic energy
[cm/GeV], possibly divided by the region volume, if you input it in
WHAT(5) (->[cm-2 GeV-1]). This is the differential particle fluence
averaged over the volume (not really the 'number of particles in volume',
which is a pointless quantity, as discussed in the famous thread

All the best


Francesco Cerutti
CH-1211 Geneva 23
tel. ++41 22 7678962
fax ++41 22 7668854

On Tue, 13 Apr 2010, wrote:

> Dear fluka experts.
> I wonder is there any detector in fluka to count a number of
> particles in volume?
> For example I've a water box and photon beam which penetrate in it.
> I need calculate how many electrons will be produced in box. I
> suppose that analog of USRBDX for volume is in fluka.
> Could you give me advice?
> Best Regards!
> Sergey Merts
Received on Thu Apr 15 2010 - 13:02:25 CEST

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