Re: [fluka-discuss]:

From: Stefan E. Mueller <stefan.mueller_at_hzdr.de>
Date: Tue, 19 Apr 2022 18:18:27 +0200 (CEST)

Hello,

I suppose you can do this by combining built-in estimators such as
USRTRACK, USRBDX and USRYIELD.

Scoring the track-lengths in the optical fiber can be done with
USRTRACK. The number of electrons traversing the fiber region can be
assessed using (two) USRBDX cards.

Velocity and angular quantities are more easily obtained via USRYIELD.
For more details on these estimators please refer to -
https://indico.cern.ch/event/753612/contributions/3121542/attachments/1974589/3285974/Scoring_2019.pdf

Alternatively, if you feel comfortable setting up an user-routine, you
can also get the data you are looking for via mxdraw.f,
using BXDRAW

https://agenda.infn.it/event/20624/contributions/105895/attachments/68619/85014/AdvancedScoring2019.pdf

Regarding your Cherenkov query, there is a complete example in the manual

http://www.fluka.org/content/manuals/online/12.2.3.html

- which can be a good starting point.

Best regards,

         Stefan

--
Stefan E. Mueller
Department of Information Services and Computing - Computational Science
and Institute of Radiation Physics
Helmholtz-Zentrum Dresden-Rossendorf
Tel: +49 (0351) 260 3847
Stefan.Mueller_at_hzdr.de
http://www.hzdr.de
Vorstand: Prof. Dr. Sebastian M. Schmidt, Dr. Diana Stiller
Vereinsregister: VR 1693 beim Amtsgericht Dresden
On Sat, 16 Apr 2022, 吴亚龙 wrote:
> 
> Dear fluka experts,
> 
> 
> Excuse me, I have a question to ask for your help. The description is as
> follows:
> 
> 
> After the beam in the Undulator of a high-energy electron accelerator hits
> the profile target,
> 
> part of the high-energy electrons generate electromagnetic shower with the
> vacuum chamber wall,
> 
> and a large number of secondary electrons are generated outside the wall. 
> 
> There is an optical fiber next to the outside of the vacuum chamber.
> 
> 
> I want to obtain the number of these secondary electrons passing through the
> optical fiber,
> 
> the incident angle information (relative to the beam direction), the
> relativistic velocity and the path length in the optical fiber.
> 
> Thank you very much for any suggestions you can provide!
> 
> 
> In addition, if you can, thank you very much for providing relevant
> examples about Cerenkov radiation generating and propagating.
> 
> 
> best regards!
> 
> 
> 
>

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Received on Tue Apr 19 2022 - 19:44:51 CEST