RE: [fluka-discuss]: Carbon beam-DPMJET link

From: Francesco Cerutti <Francesco.Cerutti_at_cern.ch>
Date: Wed, 25 Jan 2017 11:53:30 +0100

> above 150 MeV/n, notwithstanding that technically it may run.

Actually it can't. In the absence of RQMD/DPMJET, ion beams above 150
MeV/n undergo nuclear reactions only as their energy is lowered by
ionization below 150 MeV/n

Francesco

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

On Wed, 25 Jan 2017, Francesco Cerutti wrote:

>
> Hi Zafar,
>
> do not worry, BME is always activated. If you do not link RQMD/DPMJET,
> instead of getting the progressive take-over by RQMD over the 100-150 MeV/n
> range (as recommended), you keep relying only on BME also at higher energies.
> However, one should pay attention to the fact that BME is not intended for
> use above 150 MeV/n, notwithstanding that technically it may run.
>
> Kind regards
>
> Francesco
>
> **************************************************
> Francesco Cerutti
> CERN-EN/STI
> CH-1211 Geneva 23
> Switzerland
> tel. ++41 22 7678962
> fax ++41 22 7668854
>
> On Wed, 25 Jan 2017, Zafar Yasin wrote:
>
>> Dear Paola and Fluka experts,
>>
>> According to Paola, "
>> By the way, at 110 MeV/amu you do not need to link RQMD and DPMJET, the
>> interactions will be handled by BME that is already in the standard
>> library/executable."
>>
>> I want to confirm if we don't link RQMD and DPMJET below 125 MeV/u, how
>> can one sure
>> either BME is activated or not?
>>
>> I searched in the output file for BME, for heavy ions below 100 MeV/u and
>> without linking RQMD and DPMJET, and the only information I find is:
>>
>> "Heavy Ion option initialized inside Evvini 601230
>>
>> Minimum kinetic energy for BME : 1.0000E-03 (GeV/n)
>> Overall minimum kinetic energy for ion nuclear interactions:
>> 1.0000E-03 (GeV/n)"
>>
>> Is it for indication for BME activation or some thing else?
>>
>> Kind regards,
>> Zafar
>>
>> ________________________________________
>> From: owner-fluka-discuss_at_mi.infn.it [owner-fluka-discuss_at_mi.infn.it] on
>> behalf of Paola Sala [paola.sala_at_mi.infn.it]
>> Sent: 17 January 2017 08:38
>> To: Masoomeh Yarmohammadi Satri
>> Cc: fluka-discuss_at_fluka.org
>> Subject: Re: [fluka-discuss]: Carbon beam-DPMJET link
>>
>> Dera Masoomeh,
>> the process seems correct.
>> There is a safe way to check, as always:
>>
>> ************look in the output file******************
>>
>> If the heavy ion generators have been activated,
>> you should find lines like
>>
>> --> requested particle production model RQMD
>>
>> and
>> ---> requested particle production model DPMJET
>>
>> By the way, at 110 MeV/amu you do not need to link RQMD and DPMJET, the
>> interactions will be handled by BME that is already in the standard
>> library/executable.
>>
>> What is the unusual behaviour that you get?
>>
>> Ciao
>> Paola
>>
>>
>>
>> > Dear All,
>> >
>> > I have a Carbon beam (110MeV/nmu) hits an sphere is made of Titanium. I
>> > want to look to the dose equivalent data along x axis at different
>> > distances form sphere.
>> >
>> > I receive the unusual behavior from the Run. I am not sure about the
>> > process that I passing for running the simulation for the case of Carbon
>> > beam.
>> >
>> > Please some experts confirms the process that I did for DPMJET link with
>> > the purpose of the run of Carbon beam.
>> >
>> > 1. Press Compile button at the up right corner, the picture is attached
>> > (it is named 1).
>> > 2. Press ' ldpmqmd ' under the "Action" category.
>> > 3. Press 'Build' and give a name to the file, the picture is attached
>> > (it
>> > is named 2)
>> > 4. Pressthe Run button and in the Exe (up right row) selected the file
>> > made in previous step (No. 3). The picture is attached (it is named 3)
>> > 5. Press 'start' to run the simulation
>> > 6. After finishing the run, From 'Data', under the "Action" category
>> > 'Process' the data files
>> > 5. plotting the data
>> >
>> >
>> > Looking forward to hear the comments, confirmation or correction of the
>> > steps.
>> >
>> > Regards,
>> > Masoomeh
>> >
>>
>>
>> Paola Sala
>> INFN Milano
>> tel. Milano +39-0250317374
>> tel. CERN +41-227679148
>>
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>
>

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Received on Wed Jan 25 2017 - 13:09:32 CET

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