Dear Andrea,
I found a way how to reproduce more than 3 monochromatic photons. It looks
strange and I'm not sure it's correct but I have spectrum of more than 3
lines. I've done it with help of the WVLNSH routine. Also I have strange
values in USRTRACK on Y axis but it's not scary. Output file gives me
normal number of the created photons. Could you comment this method?I've
attached my inp file and WVLNSH routine.
Best regards,
Viktor
2017-02-21 15:34 GMT+02:00 Andrea Fontana <andrea.fontana_at_pv.infn.it>:
> Hi Viktor,
> for scintillation light in FLUKA, for the moment, only monochromatic
> photons are considered, with a maximum of 3 different lines.
>
> Optical photons are treated differently from the high energy photons and
> from the other particles: for example it is not possible to use them as
> primary particles nor it is possible to define them in a source.f
> routine and assign their energy.
>
> However, you can perhaps try a non-standard source_opt.f routine,
> as suggested in this old message in the forum:
>
> http://www.fluka.org/web_archive/earchive/new-fluka-discuss/3272.html
>
> This might suit your needs.
>
> Cheers,
> Andrea
>
>
> Il 21/02/2017 13:43, Віктор Родін ha scritto:
>
>> Dear Andrea,
>> Thank you for reply. I understand that we use OPT routines when wavelenth
>> is varied. I have another question related to the production of photons .
>> Is it possible to set the scintillation spectrum in FLUKA?The simplest
>> way is setting of huge number of OPT-PROD cards with different % of dose
>> for each energy. Do we have another way?
>> Cheers,
>> Viktor
>>
>> 2017-02-21 8:17 GMT+02:00 Andrea Fontana <andrea.fontana_at_pv.infn.it
>> <mailto:andrea.fontana_at_pv.infn.it>>:
>>
>>
>> Dear Viktor,
>> indeed data cards for optical photons allow to define the optical
>> properties in materials and at boundaries only for specific
>> frequencies, as you say, while user routines are more general and
>> allow
>> to give a more complete representation of the physical problem.
>>
>> For example, the refraction index can be defined with the OPT-PROP
>> card for the central frequency that one has defined, but for an
>> extended
>> dispersion relation, one can use the routine RFRNDX implementing a
>> function or interpolating a data array.
>> The refraction index can also be varied with a region-based logic
>> using
>> the function OPHBDX. The same applies also to the other optical
>> properties like absorption and diffusion coefficients.
>>
>> For a complete example, if you have not found it already,
>> you can refer to this message by Giuseppe:
>>
>> http://www.fluka.org/web_archive/earchive/new-fluka-discuss/7106.html
>> <http://www.fluka.org/web_archive/earchive/new-fluka-discuss
>> /7106.html>
>>
>> It well complements the information from the manual.
>> Hope this helps.
>>
>> Kind regards,
>> Andrea
>>
>>
>> Il 18/02/2017 16:47, Віктор Родін ha scritto:
>>
>> Dear FLUKA users and experts,
>> I'm working with optical photons in FLUKA and discover new
>> details for myself in the process. Now I have a question
>> connected with physics of the optical boundaries. Is it
>> enough set reflectivity, absorption, diffusion and
>> refractive coefficients in the OPT-PROP card for receiving of
>> the truthful results in the region borders ?For what goals
>> should we use OPT-routines, for example OPHBDX? I think that
>> other OPT routines we use if wavelength isn't constant. Is it
>> true?Could you explain me difference?
>> Best regards,
>> Viktor
>>
>>
>> -- ===========================================================
>> =============
>> Dr. Andrea Fontana tel: +39 0382 987991
>> <tel:%2B39%200382%20987991>
>> Istituto Nazionale fax: +39 0382 423241
>> <tel:%2B39%200382%20423241>
>> di Fisica Nucleare
>> Sezione di Pavia e-mail:
>> andrea.fontana_at_pv.infn.it <mailto:andrea.fontana_at_pv.infn.it>
>> Via Bassi 6 web :
>> www.pv.infn.it/~fontana <http://www.pv.infn.it/%7Efontana>
>> 27100 PAVIA, Italy
>> ============================================================
>> ============
>>
>>
>>
> --
> ========================================================================
> Dr. Andrea Fontana tel: +39 0382 987991
> Istituto Nazionale fax: +39 0382 423241
> di Fisica Nucleare
> Sezione di Pavia e-mail: andrea.fontana_at_pv.infn.it
> Via Bassi 6 web : www.pv.infn.it/~fontana
> 27100 PAVIA, Italy
> ========================================================================
>
>
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- application/octet-stream attachment: OP3.inp
Received on Tue Feb 21 2017 - 23:54:19 CET