Dear Sir,
Sorry that I missed LITHIU-6 part. Now its working fine. Thank you very
much.
Sandipan
On 2017-10-05 12:11, Francesco Cerutti wrote:
> And in fact what you need in your input is not the LOW-NEUT card (made
> pleonastic by PRECISIO), rather a monoisotopic material called
> LITHIU-6 (you called it Li).
>
> Please read the whole answer and not just the first sentence:
>
>>> In the case of 6-Li, in order to get the pointwise treatment it is
>>> mandatory to define the respective monoisotopic material through a
>>> MATERIAL card and name it LITHIU-6 (or with a character string
>>> containing LI-6 or 6-LI).
>
> Best
>
> Francesco
>
> **************************************************
> Francesco Cerutti
> CERN-EN/STI
> CH-1211 Geneva 23
> Switzerland
> tel. +41 22 7678962
> fax +41 22 7668854
>
> On Thu, 5 Oct 2017, Sandipan wrote:
>
>> Dear Sir,
>>
>> Thanks for your reply. I did not activate LOW-NEUT because I thought
>> it is automatically activated via PRECISIO. In a reply to another
>> question Francesco Cerutti has written "In particular, you need to
>> have pointwise treatment activated (which is already the case for
>> PRECISIO defaults)". But anyway now I have added the LOW-NEUT card and
>> added the end detector of USRBIN as the detector1. But still the
>> results are zero. I have attached the modified I/P. Can you please
>> check.
>>
>> Sandipan
>>
>>
>>
>>
>>
>> On 2017-10-04 20:57, Eleftherios Skordis wrote:
>>> Dear Sandipan,
>>>
>>> First of all, the main reason why you get 0 values is because you
>>> have
>>> not enabled the pointwise cross section for the Li-6 in order to
>>> explicitly transport the alpha particles. Therefore scoring fluence
>>> and energy deposition of aplha particles gives you 0 since they are
>>> not generated.
>>>
>>> You need a LOW-NEUT card to enable the Point Wise cross-sections.
>>> Also follow the instructions bellow, found in the manual, and you
>>> should get your results:
>>>
>>> Point 5 of the LOW-NEUT card in the manual
>>> 5) Pointwise neutron transport, fully alternative to the
>>> groupwise
>>> one, is available only for 1-H (above 10 eV) and 6-Li
>>> (all
>>> reactions), by setting WHAT(6) = 1.0 or 11.0. In the case
>>> of 6-Li,
>>> in order to get the pointwise treatment it is mandatory
>>> to define
>>> the respective monoisotopic material through a MATERIAL
>>> card and
>>> name it LITHIU-6 (or with a character string containing
>>> LI-6 or
>>> 6-LI).
>>>
>>>
>>> Secondly you should the set the end Region of your USRBIN scoring to
>>> be the same as the initial region (e.g. detectr1).
>>>
>>> Kind regards
>>>
>>> Lefteris
>>>
>>> -----------------------
>>>
>>> Eleftherios Skordis
>>> Dep. EN/STI, CERN
>>> CH-1211 GENEVA 23
>>> SWITZERLAND
>>>
>>> OFFICE: +41-22-7679541
>>>
>>> ________________________________________
>>> From: owner-fluka-discuss_at_mi.infn.it [owner-fluka-discuss_at_mi.infn.it]
>>> on behalf of Sandipan [sandipan_at_barc.gov.in]
>>> Sent: 04 October 2017 14:06
>>> To: fluka-discuss_at_fluka.org
>>> Subject: [fluka-discuss]: scoring alpha with USRBIN
>>>
>>> Dear Experts,
>>>
>>> I wanted to simulate energy disposition and number of alpha particles
>>> generated by the interaction of thermal neutrons with Li6 placed
>>> inside
>>> a moderating sphere. Though I am able to score alphas through
>>> RESNUCLE
>>> card, using of USRBIN card along with AUXSCORE is yielding zero
>>> result.
>>> Can anybody suggest, where I am making the mistakes. I have attached
>>> an
>>> I/P file.
>>>
>>> Cheers
>>> Sandipan
>>>
>>> __________________________________________________________________________
>>> You can manage unsubscription from this mailing list at
>>> https://www.fluka.org/fluka.php?id¬c_info
>>
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Received on Thu Oct 05 2017 - 10:01:16 CEST