Dear Haoyu,
in reviewing this thread, I think that this old message could
help you in clarifying the definition of fluence vs number of
particles:
http://www.fluka.org/web_archive/earchive/new-fluka-discuss/0542.html
Hope this helps,
Andrea
>
> Dear Andrea,
>
> Thanks a lot for your help. The source file was attached.
>
> And also, I knew the difference between the results of BDX/track card from
> your reply, but I still don't know the difference between two USRTRACK
> cards. Or I mean, how to understand the relation between fluence and
> numbers of particle? I think these two cards should get the same results
> if I set both volumes to 1cm^3, but not. Besides, is there a way to
> transfer the results from fluence(particles per cm square) to
> numbers(particles)?
>
> Thanks a lot!
>
> Best,
> Haoyu
>
>> -----Original Messages-----
>> From: "Andrea Fontana" <andrea.fontana_at_pv.infn.it>
>> Sent Time: 2018-08-10 17:40:52 (Friday)
>> To: "Haoyu Shi" <shihy_at_ihep.ac.cn>
>> Cc: "andrea fontana" <andrea.fontana_at_pv.infn.it>,
>> fluka-discuss_at_fluka.org
>> Subject: Re: Re: [fluka-discuss]: How to get real number of particles
>> from the results of bdx/track card?
>>
>> Dear Haoyu,
>> I see that you are using a custom source file that I would need
>> to be able to reproduce your case. If you send it, I can give you
>> more details...
>>
>> By looking at the input file, when comparing USRBDX and USRTRACK
>> estimators in Fluka I think you might be running in the same
>> problems discussed in these other two messages:
>>
>> http://www.fluka.org/web_archive/earchive/new-fluka-discuss/11404.html
>> http://www.fluka.org/web_archive/earchive/new-fluka-discuss/4766.html
>>
>> Andrea
>>
>> > Dear Andrea,
>> >
>> > Of course. Sorry, I forgot about it.
>> > The input file was attached.
>> >
>> > Best,
>> > Haoyu
>> >
>> >
>> >> -----Original Messages-----
>> >> From: "Andrea Fontana" <andrea.fontana_at_pv.infn.it>
>> >> Sent Time: 2018-08-10 15:35:10 (Friday)
>> >> To: "Haoyu Shi" <shihy_at_ihep.ac.cn>
>> >> Cc: fluka-discuss_at_fluka.org
>> >> Subject: Re: [fluka-discuss]: How to get real number of particles
>> from
>> >> the results of bdx/track card?
>> >>
>> >> Hello Haoyu,
>> >> could you please send your input file?
>> >>
>> >> Kind regards,
>> >> Andrea
>> >>
>> >> > Dear FLUKA Experts,
>> >> >
>> >> > I'm simulating the SR in a chamber. To test the photon generator, I
>> >> built
>> >> > a geometry with a chamber(RCC with 5.0cm in a, 3.75 cm in b, and
>> 880
>> >> cm
>> >> > length) and a pipe(RCC cylinder shell with 5.3 cm in a, 4.05 cm in
>> b,
>> >> and
>> >> > 880 cm in length), both with the material of vacuum. Then I used
>> two
>> >> > USRTRACK cards to record the volume fluence of chamber region and
>> pipe
>> >> > region, and a USRBDX card to record the one-way fluence from
>> chamber
>> >> to
>> >> > pipe(I set the real number of volume and area). In my opinion, I
>> >> should
>> >> > get the same number of these three records, but I did not. So I'd
>> like
>> >> to
>> >> > know the reason for these, especially why two USRTRACK cards give
>> the
>> >> > different results. And also, if I want to get the real number of
>> >> photons
>> >> > or whatever particles from the results, from particles per cm^2 to
>> >> > particles, how do I process the results?
>> >> >
>> >> > Thanks a lot!
>> >> >
>> >> > Haoyu
>> >> >
>> >>
>> >>
>> >> --
>> >> ========================================================================
>> >> 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
>> >> ========================================================================
>> >>
>> >
>>
>>
>> --
>> ========================================================================
>> 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
>> ========================================================================
>>
>>
>> __________________________________________________________________________
>> You can manage unsubscription from this mailing list at
>> https://www.fluka.org/fluka.php?id=acc_info
>
--
========================================================================
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
========================================================================
__________________________________________________________________________
You can manage unsubscription from this mailing list at https://www.fluka.org/fluka.php?id=acc_info
Received on Mon Aug 27 2018 - 08:25:27 CEST