Re: [fluka-discuss]: cross section data pB

From: Paola Sala <paola.sala_at_mi.infn.it>
Date: Thu, 21 May 2020 11:18:19 +0200

Hi
I have to specify better what I wrote in my previous e-mail, I was
misleading.
Fluka uses a parametrization for the TOTAL p-nucleus cross section. The
specific reaction channels are NOT derived from
databases/fits/parametrizations: they are calculated online from
microscopic models of the reaction. So, there is no easy way to access
cross sections for single reaction channels.
Regards
Paola


> Hi,
>
> So it is not possible to have access to these informations?
>
> Thanks for your help.
>
> Julien
>
> ----- Mail original -----
> De: "Julien Bonvalet" <julien.bonvalet_at_u-bordeaux.fr>
> À: "paola sala" <paola.sala_at_mi.infn.it>
> Cc: "fluka-discuss" <fluka-discuss_at_fluka.org>
> Envoyé: Mardi 19 Mai 2020 16:09:25
> Objet: Re: [fluka-discuss]: cross section data pB
>
> Thank you Paola.
> Yes I work on pB fusion so I am interested in some reactions :
> 11B(p,3alpha) through 8Be* or 8Be, 10B(p,alpha)7Be and 14N(p,alpha)11C...
> With mgdraw.f I can see from which reaction alpha come from.
>
> But I have to compare this simulation with an experiment and I undervalue
> alpha number of a factor 10 sometimes.
>
> So I would like to have access to the cross sections of reactions p/B and
> p/N used by FLUKA. How I can do to do that?
>
> Thank you
>
> Julien
> (CELIA FRANCE)
>
> ----- Mail original -----
> De: "paola sala" <paola.sala_at_mi.infn.it>
> À: "Julien Bonvalet" <julien.bonvalet_at_u-bordeaux.fr>
> Cc: "fluka-discuss" <fluka-discuss_at_fluka.org>
> Envoyé: Mardi 19 Mai 2020 14:05:48
> Objet: Re: [fluka-discuss]: cross section data pB
>
> Hello
> no, Fluka does not use TENDL, at least not for proton induced reactions:
> It has its own parametrization of proton-nucleus cross sections.
> For low energy neutrons, some of the materials are treated using TENDL
> data, however most datasets are derived from ENDF
> In the plot, you mean 11B(p,3alpha), right?
> Regards
> Paola
>> Hi dear fluka team,
>>
>> I have a general question.
>> Fluka use cross section data base TENDL no?
>>
>> Because I am wondering why such model of cross section (see figure in
>> attachment) for proton/Boron is so far from experimental data (in this
>> example, between incident proton energy from 100keV to few MeV ,
>> experimental data of cross section is about 10mb-1b ans TENDL is at 1fb.
>> A
>> 10¹⁵ factor is not nothing...
>>
>> If someone have an explaination...
>>
>> Thanks
>>
>> Julien BONVALET
>> CELIA FRANCE
>>
>
>
> Paola Sala
> INFN Milano
> tel. Milano +39-0250317374
> tel. CERN +41-227679148
>
>
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Paola Sala
INFN Milano
tel. Milano +39-0250317374
tel. CERN +41-227679148

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Received on Thu May 21 2020 - 13:03:10 CEST

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