Re: [fluka-discuss]: How to understand "42 groups of gamma"?

From: Francesco Cerutti <Francesco.Cerutti_at_cern.ch>
Date: Wed, 26 Jul 2017 11:10:07 +0200

Dear Shy,

> Or this way only dealing with the photons generated by Low energy neutrons?

this is the case. Note that the generated gammas are then transported in
the same way as all other photons in FLUKA, using continuous cross
sections

> How about the neutrons?

For neutrons the group treatment applies from 20 MeV downward.

Kind regards

Francesco

**************************************************
Francesco Cerutti
CERN-EN/STI
CH-1211 Geneva 23
Switzerland
tel. ++41 22 7678962
fax ++41 22 7668854

On Tue, 25 Jul 2017, shihy_at_ihep.ac.cn wrote:

> Dear Experts,
>
> I'm doing some study of Synchrotron Radiation. The manual said that FLUKA u
> sing the way of "42 groups of gamma" to deal with photons with energy betwe
> en 1keV and 50 MeV. I don't know how to understand it. Does it mean that al
> l photons with that range of energy would be divided into 42 group, giving
?? ?a particular energy, and has a particular cross section for each kind of in
> teraction? Or this way only dealing with the photons generated by Low energ
> y neutrons?
> How about the neutrons?
> Thanks a lot.
>
> Shy Shii
>
>

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Received on Wed Jul 26 2017 - 12:07:10 CEST

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