Dear Mikhail,
Thanks for your kind help. Do you mean the potential value must be input by myself if the material is not the pre-defined Fluka material?
best regards!
Tao Yang
-----原始邮件-----
发件人: "Mikhail Polkovnikov <Михаил Полковников>" <pmk_at_ihep.ru>
发送时间: 2015年11月23日 星期一
收件人: "YANG Tao" <yangt_at_ihep.ac.cn>, "fluka-discuss_at_fluka.org" <fluka-discuss_at_fluka.org>
抄送:
主题: Re: [fluka-discuss]: MAT-PROP card
On 23.11.2015 15:26, YANG Tao wrote:
Dear Mikhail !
Thanks for your reply. Then what is the mean excitation energy of the mixture, is it the linear superposition of each value like Σi(w_i*I_i)? Assume w_i is the volumetric weight. And does this value should be provided by me in the input file or as default, that is to say, it is left blank and calculated from systematic?
Best Regards,
Tao Yang.
----- 原始邮件-----
发件人: "Mikhail Polkovnikov <Михаил Полковников>" <pmk_at_ihep.ru>
发送时间: 2015年11月23日 星期一
收件人: "YANG Tao" <yangt_at_ihep.ac.cn>, "fluka-discuss_at_fluka.org"<fluka-discuss_at_fluka.org>
抄送:
主题: Re: [fluka-discuss]: MAT-PROP card
On 22.11.2015 04:55, YANG Tao wrote:
Hi, everyone!
I used FLUKA to simulate the ionization chamber response, the work gas is a mixture of argon and nitrogen gas. I creat a compound card in FLUKA to set the properties for it. However, in the MAT-PROP card, I have no idea of WHAT(3)-the average ionization potential, is this value input by me or as default (calculated from systematics)? If it is the previous case, how should I obtain the value?
Many thanks in advance.
--
Tao Yang, CAS.
Dear Tao Yang,
Please look the mean excitation energy for natural materials at the PDG official site.
For argon gas the value is 188.0 eV, and for nitrogen it's 82 eV.
Best regards,
Mikhail
--
杨涛
中科院高能所东莞分部（东莞中子科学中心）加速器技术部
地址：东莞市大朗镇中子源路1号中国散裂中子源A2栋606室
E-mail：yangt_at_ihep.ac.cn
电话：0769-38944239
邮编：523803
Dear Tao Yang,
If you use FLUKA gas materials: ARGON, NITROGEN - they already had these values, so FLUKA could calculate mean excitation energy for the mixture from systematics, and you don't need to use MAT-PROP card.
Best regards,
Mikhail
--
杨涛
中科院高能所东莞分部（东莞中子科学中心）加速器技术部
地址：东莞市大朗镇中子源路1号中国散裂中子源A2栋606室
E-mail：yangt_at_ihep.ac.cn
电话：0769-38944239
邮编：523803
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Received on Mon Nov 23 2015 - 15:34:21 CET