Re: Neutron yield

From: Stefan Roesler <>
Date: Sun, 30 Aug 2009 17:40:32 +0200

Hi Ali

I am not 100% sure of your problem, but would the info provided at the
very bottom of the output file be what you are looking for? Search for the
following lines in the output file:

 Number of secondaries generated in inelastic interactions per beam

 Number of secondaries created by low energy neutron per beam particle:

Otherwise, did you try scoring NEU-BALA, e.g. with USRBIN?

Finally, there is always the user-routine mgdraw with direct access to
final state particles from individual interactions.

Best regards

On Fri, 21 Aug 2009, Ahmad, Ali wrote:

> Dear FLUKA experts,
> I'm working on the validation of nuclear data required for accelerator
> driven sub-critical reactors, I've faced the following problem:
> - while studying the neutron yield out of a spallation target, I couldn't
> know how to calculate the total number of neutrons produced inside the target
> (primary+secondary)
> Many thanks for your time,
> Ali

Stefan Roesler
CH-1211 Geneva 23
Phone:  +41-22-7679891
Fax:    +41-22-7669639
Received on Sun Aug 30 2009 - 18:23:56 CEST

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