Dear Vera,
heavy ion transport in FLUKA includes both electronic and nuclear stopping
power and, as far as energy deposition is concerned, I do not see matter
of concern, provided that transport threshold (which can be lowered down
to 250 eV/A) and delta ray threshold are properly set wrt the requested
scoring resolution.
BME (which deals with nuclear reactions, not nuclear stopping power) is
less relevant to energy deposition than to activation, for which it
clearly plays a major role. I have the impression you misunderstood the
mentioned limits: 150 MeV/A is the *upper* limit for BME, which is applied
by default below 125 MeV/A, down to the Coulomb barrier. I think we miss
specific benchmark for products of uranium beams below 50 MeV/A, but in
principle the code is designed to treat them. You are encouraged to use it
and report any issue you may find.
Cheers
Francesco
**************************************************
Francesco Cerutti
CERN-EN/STI
CH-1211 Geneva 23
Switzerland
tel. ++41 22 7678962
fax ++41 22 7668854
On Tue, 27 Jan 2015, Chetvertkova, Vera wrote:
> Dear Paola,
>
> thank you for your reply!
>
> When you say all ions can be transported - do you mean both electronic and nuclear stopping?
> As far as I understand, BME is applied at energies < 125 MeV/A for heavy ion interactions, but the limit of validity was reported some time ago to be 150MeV/A. I was hoping maybe there were some advances in benchmarking.
>
> I'm interested in energy deposition and activation by <50 MeV/A uranium ions. Do you think it's safe to use FLUKA or it's better to choose alternatives?
>
> Thanks a lot!
>
> Best wishes,
> Vera
>
>
> ________________________________________
> From: Paola Sala [paola.sala_at_mi.infn.it]
> Sent: Friday, January 23, 2015 5:10 PM
> To: Chetvertkova, Vera
> Cc: fluka-discuss_at_fluka.org
> Subject: Re: [fluka-discuss]: Heavy-Ions, validity
>
> Dera Vera,
> all ions can be transported.
> Interactions of Deuterons are missing below 150 MeV/A and unreliable above.
> Interactions of tritons and 3-He are missing below 150 MeV/A
> I hope this is what you meant with your question..otherwise please ask again
> Regards
> Paola
>> Dear FLUKA experts,
>>
>> Could you please tell me what is the limit of validity of FLUKA, when
>> studying energy deposition and activation of the targets by heavy ions?
>>
>> Thanks a lot!
>>
>> Best wishes,
>> Vera
>>
>> __________________________________________________________________________
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>>
>>
>
>
> Paola Sala
> INFN Milano
> tel. Milano +39-0250317374
> tel. CERN +41-227679148
>
> __________________________________________________________________________
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>
>
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Received on Tue Jan 27 2015 - 12:46:23 CET