Re: [fluka-discuss]: Single scattering for proton beam

From: paola sala <paola.sala_at_cern.ch>
Date: Mon, 4 Nov 2013 09:45:02 +0100

sorry for not being clear enough,
the answer is yes
Paola

On 11/04/2013 09:28 AM, yyc2011_at_mail.ustc.edu.cn wrote:
> Dear Paola,
>
> Could the MULSOPT card be used to set single scattering for protons? This is my question.
>
> Best Regards
> YuanChen
>
>
>
>> -----Original E-mail-----
>> From: "Paola Sala" <paola.sala_at_mi.infn.it>
>> Sent Time: 2013-11-4 15:38:24
>> To: yyc2011_at_mail.ustc.edu.cn
>> Cc: fluka-discuss_at_fluka.org
>> Subject: Re: [fluka-discuss]: Single scattering for proton beam
>>
>> Dear YuanChen
>> wrong. the MULSOPT card sets conditions for
>> both hadrons/muons and electrons/positrons, including single scattering.
>> Regards
>> Paola
>>> Dear Fluka experts,
>>>
>>> When I read the Fluka Manual,it says "the MULSOPT card sets the tracking
>>> conditions for multiple Coulomb scattering (MCS), for
>>> both hadrons/muons and electrons/positrons.Can also be used to activate
>>> single scattering." In other words,this card can only be used to set
>>> single scattering for electrons,but not for protons.Right?
>>> Last time,paola told me "for micro-sized geometries,single scattering
>>> should be set for all steps". Now, If the incident particles are proton
>>> beam,for micro-sized geometries,I must set single scattering for proton
>>> beam.Right? But,how could I do this?
>>> Thanks for any suggestion.Thanks for your time.
>>>
>>> Best Regards
>>> YuanChen
>>>
>>>> -----Original E-mail-----
>>>> From: "Roberto Versaci" <roberto.versaci_at_gmail.com>
>>>> Sent Time: 2013-10-26 19:34:30
>>>> To: "fluka-discuss_at_fluka.org" <fluka-discuss_at_fluka.org>
>>>> Cc:
>>>> Subject: Re: Re: RE: [fluka-discuss]: How to set jagged geometries
>>>> (fwd)
>>>>
>>>> Dear Yuan,
>>>>
>>>> Please always reply to the discussion list, do not write private emails.
>>>>
>>>> What I meant with my last email, is exactly what Anton and Paola had
>>>> already written.
>>>> Quoting Anton who quotes Paola:
>>>> <<As Paola wrote to you about two weeks ago, 50 nm structures are
>>>> probably
>>>> too small for the physics models of the code. Let me quote: "the
>>>> geometry
>>>> you defined has layers as thin as 0.05 MICRONS. The models of the code
>>>> cannot be used for such thin layers. A minimum size of about 1 micron
>>>> should be kept to get meaningful results.">>
>>>> To put it short: the dimensions of the objects you want to model are too
>>>> small!
>>>>
>>>> For what concerns the use of PLA, you could have a look both at the
>>>> manual
>>>> and at the geometry lecture of FLUKA courses, this is the link to the
>>>> last
>>>> one:
>>>> https://www.fluka.org/free_download/course/dresden2013/Lectures/05_Geometry_1013.pdf
>>>>
>>>> Nevertheless, once again, please, keep clearly in mind what Paola,
>>>> Anton,
>>>> and myself have said about the dimensions!
>>>>
>>>> Cheers,
>>>>
>>>> Roberto
>>>>
>>>>
>>>>
>>>> ---------- Forwarded message ----------
>>>> Date: Fri, 25 Oct 2013 22:32:34 +0800 (CST)
>>>> From: yyc2011_at_mail.ustc.edu.cn
>>>> To: Roberto Versaci <roberto.versaci_at_gmail.com>
>>>> Subject: Re: Re: RE: [fluka-discuss]: How to set jagged geometries
>>>> (fwd)
>>>>
>>>> Dear Roberto,
>>>>
>>>> What is your meaning?You have not answered my question.What is your
>>>> opinion?How to define the geometry?
>>>>
>>>> Best Wishes
>>>> YuanChen
>>>>> -----Original E-mail-----
>>>>> From: "Roberto Versaci" <roberto.versaci_at_gmail.com>
>>>>> Sent Time: 2013-10-25 21:01:24
>>>>> To:"fluka-discuss_at_fluka.org" <fluka-discuss_at_fluka.org>
>>>>> Cc:
>>>>> Subject: Re: RE: [fluka-discuss]: How to set jagged geometries (fwd)
>>>>>
>>>>> Dear Yuan,
>>>>>
>>>>> Reading Anton's reply I realized I did not have noticed the dimensions
>>>> of
>>>>> your geometry. He is totally right in his comments about the
>>>> dimensions!
>>>>> They are definitely too small!
>>>>>
>>>>> Sorry,
>>>>>
>>>>> Roberto
>>>>>
>>>>>
>>>>>
>>>>>> Dear Yuan,
>>>>>>
>>>>>> You could consider using PLA bodies (generic planes) to define your
>>>>>> triangles.
>>>>>> Cheers,
>>>>>>
>>>>>> Roberto
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Fri, 25 Oct 2013, yyc2011_at_mail.ustc.edu.cn wrote:
>>>>>>
>>>>>>> Dear Vasilis,
>>>>>>>
>>>>>>> Thanks for your reply.
>>>>>>> The attachment is the schematic diagram.The geometry is like
>>>> this.The
>>>>>>> height of the triangle is 0.000005 centimeters.If I want to define
>>>> this
>>>>>>> geometry,how should I do?
>>>>>>> Thanks for any suggestions.
>>>>>>>
>>>>>>> Best Regards
>>>>>>> YuanChen
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>> -----Original E-mail-----
>>>>>>>> From: "Vasilis Vlachoudis" <Vasilis.Vlachoudis_at_cern.ch>
>>>>>>>> Sent Time: 2013-10-25 17:43:39
>>>>>>>> To: "yyc2011_at_mail.ustc.edu.cn" <yyc2011_at_mail.ustc.edu.cn>,
>>>>>>>>
>>>>>>>> Cc:
>>>>>>>> Subject: RE: [fluka-discuss]: How to set jagged geometries
>>>>>>>>
>>>>>>>> Hi Yuan,
>>>>>>>>
>>>>>>>> could you please be more explicit what you mean by jagged maybe a
>>>> drawing
>>>>>>>> will help.
>>>>>>>> Please also give a look on the course lecture on geometry and
>>>> especially on
>>>>>>>> Geometry II
>>>>>>>> for use of lattices or voxels.
>>>>>>>> Vasilis
>>>>>>>>
>>>>>>>> ________________________________________
>>>>>>>> From: owner-fluka-discuss_at_mi.infn.it
>>>> [owner-fluka-discuss_at_mi.infn.it] on
>>>>>>>> behalf of yyc2011_at_mail.ustc.edu.cn [yyc2011_at_mail.ustc.edu.cn]
>>>>>>>> Sent: 25 October 2013 09:57
>>>>>>>> To: fluka-discuss_at_fluka.org
>>>>>>>> Subject: [fluka-discuss]: How to set jagged geometries
>>>>>>>>
>>>>>>>> Dear Fluka experts,
>>>>>>>>
>>>>>>>> I want to set jagged geometries in my simulation.But,I don't know
>>>> how to
>>>>>>>> set jagged geometries in the Fluka.Could you help me or could you
>>>> give me
>>>>>>>> any suggestions?
>>>>>>>> Thanks for your time.Thanks for any suggestions.
>>>>>>>>
>>>>>>>> Best Regards
>>>>>>>> YuanChen
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>
>>>>> --
>>>>> Alberto Fass
>>>>>
>>
>> Paola Sala
>> INFN Milano
>> tel. Milano +39-0250317374
>> tel. CERN +41-227679148
>>
Received on Mon Nov 04 2013 - 10:31:39 CET

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