Re: RE: [fluka-discuss]: Does it need special setting for neutron in polyethylene?

From: 毕远杰 <biyuanjie_at_tsinghua.org.cn>
Date: Tue, 10 Dec 2013 19:47:26 +0800 (CST)

Dear Joachim,

I attach the input file. I use several slabs to calculate the attenuation length of neutron and photon in concrete and polyethylene.
The initial proton beam is 10MeV, which is near the reaction threshold.

Many thanks
Yuanjie


> -----原始邮件-----
> 发件人: "Joachim Vollaire" <joachim.vollaire_at_cern.ch>
> 发送时间: 2013年12月9日 星期一
> 收件人: ??? <biyuanjie_at_tsinghua.org.cn>
> 抄送:
> 主题: RE: [fluka-discuss]: Does it need special setting for neutron in polyethylene?
>
> Dear Yuanjie
> Could you send your input file, it would be much better to understand your issue.
> Thanks in advance
> Joachim
>
>
> -----Original Message-----
> From: owner-fluka-discuss_at_mi.infn.it [mailto:owner-fluka-discuss_at_mi.infn.it] On Behalf Of ???
> Sent: 02 December 2013 12:31
> To: fluka-discuss
> Subject: [fluka-discuss]: Does it need special setting for neutron in polyethylene?
>
>
> Dear Fluka users,
>
> I use Fluka to calculate the attenuation length of neutron in different materials from 10 MeV proton impinging on iron target. The New-defaults is used. The results show that the attenuation length in concrete agrees with the literature data. But the attenuation length in polyethylene is much larger than the literature data. So the question is:
>
> 1) Does it need special setting for neutron in polyethylene?
> 2) Does it need special setting for 10 MeV proton which is almost the threshold of the (p,n) reaction except the setting of PART-THR?
>
> Many thanks
> Best wishes
> Yuanjie
>



Received on Tue Dec 10 2013 - 15:52:13 CET

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