Re: [fluka-discuss]: Hadron-nucleon interaction cross-sections

From: NKANYISO ROBERT Mantengu <3477531_at_myuwc.ac.za>
Date: Fri, 12 May 2017 18:08:43 +0200

Dear Francesco

Thanks for your answer.

So what could be the solution in this case?

Ragrads
Nkanyiso R. Mantengu

On Fri, May 12, 2017 at 5:01 PM, Francesco Cerutti <
Francesco.Cerutti_at_cern.ch> wrote:

>
> Dear Nkanyiso,
>
> you have a point.
>
> FLUKA does not use cross section libraries, except for interactions
> induced by neutrons below 20 MeV.
> It uses its own models for calculating the sharing among the different
> reaction channels and its own parametrizations for calculating the reaction
> cross section. Here the issue is with the latter, whose sub-barrier
> extension (below 10 MeV proton energy in this case) is just missing and
> prevents you from simulating neutron production in that range.
>
> Best regards
>
> Francesco
>
> **************************************************
> Francesco Cerutti
> CERN-EN/STI
> CH-1211 Geneva 23
> Switzerland
> tel. ++41 22 7678962
> fax ++41 22 7668854
>
> On Fri, 12 May 2017, NKANYISO ROBERT Mantengu wrote:
>
> Dear FLUKA users
>>
>> I'm simulating the Ta-181(p,n)W-181 reaction.
>>
>> Beam properties
>> * 6 MeV energy proton beam.
>> * 200 micro A current.
>>
>> My problem is that I don't see any neutrons until I set the beam energy
>> to 9.6 MeV which is in
>> contrast with the cross section plot (attached below) produced using the
>> EXFOR cross section
>> data.
>>
>> So my question is what cross section library is used to handle
>> hadron-nucleon interactions in
>> PEANUT model.
>>
>> Any help/comments will be appreciated.
>> Thanks in advanced.
>>
>> NB: The FLUKA input is also attached in this email.
>>
>> Regards,
>> Nkanyiso R. Mantengu
>>
>>
>>
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>>
>>
>>
>>
>>

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Received on Fri May 12 2017 - 19:14:45 CEST

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