Dear Ricardo,
Thanks, I have not noticed that simple errors. Now I can see the fluence
of the alphas inside the target.
Best regards and thank you for your time, Alessandro Calamida.
Il 07/03/2021 19:05, Ricardo Manuel Dos Santos Augusto ha scritto:
> Dear Alessandro,
>
> Your USRTRACK detector was missing the region. Without it the code does not know where to calculate the particle fluence.
>
> Regarding your use of USRBDX, note that the alphas will not travel that far to cross the boundary.
>
> Hope it helps,
> Best regards,
> Ricardo
>
> //Ricardo dos Santos Augusto
> TRIUMF-EH&S
> Office: +1 604 222 10 47 (6375)
> 4004 Wesbrook Mall,
> Vancouver, BC V6T 2A3, Canada//
> ________________________________________
> De : Alessandro Calamida [alex.calamida2_at_tiscalinet.it]
> Envoyé : lundi 1 mars 2021 16:19
> À : paola.sala_at_mi.infn.it
> Cc : Ricardo Manuel Dos Santos Augusto; fluka-discuss_at_fluka.org
> Objet : Re: [fluka-discuss]: Neutron reaction in Lithium-6
>
> Dear Paola,
>
> I tried to activate the transport of tritium and alpha but if I tried to
> score the alpha with an usrtrack inside the Li6F, I still do not find
> anything. Am I making something wrong? I attach the input file to this
> email.
>
> Best regards, Alessandro Calamida.
>
> Il 01/03/2021 08:44, Paola Sala ha scritto:
>> Dear Alessandro,
>> the point is not on transport, it is on production. For almost all
>> materials in Fluka are trasported wit group-wise cross section and the
>> charged interaction products are not produced at all, the corresponding
>> energy is deposited at the point of interaction. A better description is
>> available for a few isotopes, including 6-Li.
>>
>> As Ricardo wrote, you have to change the definition of the lithium
>> material, using a specific name so that the code knows that it has to use
>> pointwise cross sections for it and produce the charged particles. ( see
>> note 5 to the LOW-NEUT card in the manual)
>> Regards
>> Paola
>>> Dear Riccardo,
>>>
>>> I understood that tritium and helium-4 where not transported. In fact,
>>> if I use the usertrack I find no trace of the two particles. How I can
>>> activate their transport?
>>>
>>> For the results of the RESNUCLEi card, now I understand them. It gives
>>> nucleus/cm^3, so the propability that a neutron triggers the reaction.
>>>
>>> Berst regards, Alessandro Calamida.
>>>
>>> Il 27/02/2021 06:10, Ricardo Manuel Dos Santos Augusto ha scritto:
>>>> Dear Alessandro,
>>>>
>>>> When you say 'I have read that the alpha particles and the tritium
>>>> produced are not transported by FLUKA.' This is incorrect. Li-6 is one
>>>> of the few isotopes for which pointwise neutron transport can be
>>>> activated and you can get the alphas and tritons to be transported.
>>>>
>>>> One does need to define the Li-6 with a special name (note 5 to the
>>>> LOW-NEUT card in the manual):
>>>> MATERIAL 3. 0.534
>>>> 6.LITHIU-6
>>>> Note that your IONTRANS definition is not needed with PRECISIO
>>>>
>>>> Also, you probably misunderstood the meaning of the WHAT(3,4) in the
>>>> RESNUCLEi, you can leave those blank for your purposes.
>>>>
>>>> Best regards,
>>>> Ricardo
>>>>
>>>>
>>>> //Ricardo dos Santos Augusto
>>>> TRIUMF-EH&S
>>>> Office: +1 604 222 10 47 (6375)
>>>> 4004 Wesbrook Mall,
>>>> Vancouver, BC V6T 2A3, Canada//
>>>> ________________________________________
>>>> De : owner-fluka-discuss_at_mi.infn.it [owner-fluka-discuss_at_mi.infn.it] de
>>>> la part de Alessandro Calamida [alex.calamida2_at_tiscalinet.it]
>>>> Envoyé : lundi 22 février 2021 14:01
>>>> À : fluka-discuss_at_fluka.org
>>>> Objet : [fluka-discuss]: Neutron reaction in Lithium-6
>>>>
>>>> Dear FLUKA experts,
>>>>
>>>> I have to estimate the neutron-alpha rection rate in lithium-6. I have
>>>> read that the alpha particles and the tritium produced are not
>>>> transported by FLUKA. Hower, they can be scored using the RESNUCLEi
>>>> card. I tried but I do not understand the results shown. Putting no data
>>>> in the Z and A option I find two results at Z=0.5 and Z=1.5. Instead,
>>>> choosing Z=1 and A=4 I obtaine 0. Why this happens? Am I using the right
>>>> physics card?
>>>>
>>>> I attached the input file at the email.
>>>>
>>>> Best regards and thank you for your time, Alessandro Calamida.
>>>>
>>>>
>>>>
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>>>>
>>>> __________________________________________________________________________
>>>> You can manage unsubscription from this mailing list at
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>>>>
>>> --
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>>>
>>>
>> Paola Sala
>> INFN Milano
>> tel. Milano +39-0250317374
>> tel. CERN +41-227679148
>>
>
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Received on Mon Mar 08 2021 - 21:37:42 CET