[fluka-discuss]: General Questions on CR in FLUKA

From: YUYI <yuyi_at_mail.dlut.edu.cn>
Date: Tue, 3 Mar 2020 03:59:47 +0800 (GMT+08:00)

Dear experts




I would like to find out something on FLUKA, which may be a little vague for me in manual.


Could you help me with the following, please ?




1.What's the meaningful of the ALL-Nucleon spectrum existing ? When do I use it?


2.In SPECSOUR/GCR-ION, why choose the WHAT(12)< 0, i.e.make the ions are split instead of treating them as real one?


3.How does the spectral index for sampling work? why set 1.75 is approprite? (SPECSOUR/GCR-ION WHAT(5))
 
 Does the transition energy for sampling has recommended value ? What should I set it according to? (SPECSOUR/GCR-ION WHAT(6))
 
 What's the number of the energy point in the spectra refer to? If I increase it value, what benefit will happen?


(SPECSOUR/GCR-ION WHAT(9))


4.What's the meaning of the possibilities used for the various ions? (SPECSOUR/GCR-ION WHAT(11))
 
 If I use zzphi0465.spc of 28 files totally and set 5000 primary/cycle, how the sampling work and what'the distributon of the


 sampling results? Is the component percent of sampling results same as the real CR?
 
5.There is a DPMJET card in flair, is it equivalent to the ldpm2rqmd or can only use it above 5 Gev?


 And does the limit of 1000/n mean 1000/nucleon? what's the max value I can put in SPECSOUR/GCR-ION WHAT(4)?




Please take it easy, any one of them being answered would help me a lot.




Thank you and best,


 Yi






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Received on Mon Mar 02 2020 - 23:04:54 CET

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