Re: Evaluating double differential cross section from USRYIELD

From: <Andrea.Mairani_at_mi.infn.it>
Date: Sun, 12 Jul 2009 12:20:55 +0200 (CEST)

Dear Andrzej,
 I would like to suggest you to take a part in a FLUKA course which could
help you to improve your knowledge about different cards of FLUKA etc etc
etc...
Regarding the target thickness it depends of your problem and I cannot
suggest one.
Ciao
Andrea

> Dear Andrea
> Thanks for your help.
> Unfortunately I do not to know how calculate double diff.cross section
> correct yet.
> I would like to know the thicknes the target in [cm], all parameters
> LAM-BIAS command and all other parameters.(if it is posible of course).
>
> Kind regards
> Andrzej
>
> ----- Original Message -----
> From: <Andrea.Mairani_at_mi.infn.it>
> To: "Andrzej Wojciechowski" <andrzej_at_cyf.gov.pl>
> Cc: <fluka-discuss_at_fluka.org>
> Sent: Friday, July 10, 2009 3:10 PM
> Subject: Re: Evaluating double differential cross section from USRYIELD
>
>
>> Dear Andrzej,
>> "Which thicknes of target is correct?"
>> Well, if you are simulating an experiment you have to use the
>> experimental
>> thickness on the other hand it's clear that the spectra depend on the
>> target thickness. What are you interested in?
>> Two remarks from the manual:
>> 1)"Note that calculating a cross section has little meaning in case of a
>> thick target."
>> 2)"Point-target yields, i.e. yields of particles emerging from
>> inelastic hadronic interactions with single nuclei (includinghadronic
>> interactions by ions and real or virtual photons), are scored by setting
>> WHAT(4) = -1.0 and WHAT(5) = -2.0 in the first USRYIELD card."
>> Ciao
>> Andrea
>>
>>> Dear FLUKA users
>>> How correct calculate the double differ.cross section using USRYIELD
>>> command?
>>> The results strongly depends on the thicknes of target (see input
>>> file).
>>> Wchich thicknes of target is coorrect?
>>> Kind regards
>>> Andrzej
>>>
>>>
>>
>>
>
Received on Mon Jul 13 2009 - 10:01:21 CEST

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