Re: Re: [fluka-discuss]: Tally segment like MCNP

From: Vittorio Boccone <Vittorio.Boccone_at_cern.ch>
Date: Mon, 18 Nov 2013 08:59:40 +0000

Dear Yuanjie,
 apologize I was not clear enough. Yes you need to segment it over
if you need the double differential current as a function of the
position on the cylinder.

Alternatively you can use the USERDUMP/mgdraw.f to save energy
coordinates and direction cosines of the particle(s) you are
interested in.

Not sure what I can suggest you as I don’t know the details of
your simulation.

Best
V.

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On 18 Nov 2013, at 00:17, 毕远杰 <biyuanjie_at_tsinghua.org.cn> wrote:
> Dear Vittorio,
> 
> What does it mean "define very fine usrbdx"? Should I define extra regions in the geometry just for scoring? This may increase the CPU time.
> 
> Best wishes
> Yuanjie
> 
>> -----原始邮件-----
>> 发件人: "Vittorio Boccone" <Vittorio.Boccone_at_cern.ch>
>> 发送时间: 2013年11月16日 星期六
>> 收件人: "毕远杰" <biyuanjie_at_tsinghua.org.cn>
>> 抄送: fluka-discuss <fluka-discuss_at_fluka.org>
>> 主题: Re: [fluka-discuss]: Tally segment like MCNP
>> 
>> Dear Yuanjie, 
>> not that I know. You can define very fine usrbdx and merge the unwanted cell together in the post-processing.
>> As an alternative you use custom scoring with an external function (I know Alberto Fasso will not be happy 
>> about this suggestion :D)
>> 
>> Best 
>> V.
>> 
>> -- 
>> 
>> !!! Please take note that my main e-mail address will not be 
>> !!! valid anymore starting from 1st January 2014. 
>> !!!
>> !!! Please use those addresses instead:
>> !!!   Professional: dr.vittorio.boccone_at_ieee.org 
>> !!!   Private:      vittorio.boccone_at_gmail.com
>> 
>> Dr. Vittorio Boccone - University of Geneva
>> 
>> o Address:
>> UniGe: Département de physique nucléaire et corpusculaire
>>        24 Quai Ernest-Ansermet, CH-1211 Geneve 4, Switzerland
>> CERN:  CERN, CH-1211 Geneve 23, Switzerland
>> 
>> o E-mail:
>> dr.vittorio.boccone_at_ieee.org (professional)
>> vittorio.boccone_at_gmail.com   (private)
>> 
>> On 15 Nov 2013, at 02:20, 毕远杰 <biyuanjie_at_tsinghua.org.cn> wrote:
>> 
>>> Dear FLuka usrers,
>>> 
>>> I find there is tally segment card FSn in MCNP to subdivide a cell or a surface into segments for scoring
>>> purpose without having to specify extra cells just for tallying. Does FLUKA have similar ability?
>>> This is usefull when there is nonuniform radioactivity in a cylindrical container.
>>> I want to mesh the surface, and record the double differential current of each surface element using usrbdx.
>>> 
>>> Best wishes
>>> Yuanjie
>>> 
>> 
> 

Received on Mon Nov 18 2013 - 10:48:29 CET