Hi Alexy,
as written in the manual (LOW-NEUT card, note 5):
"In the case of 6-Li, in order to get the pointwise treatment
<allowing for generation of secondary charged particles and fragments,
such as 3H and 4He, which on the contrary are not explicitly produced and
transported with the groupwise treatment (that for most materials is the
only available)>
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)."
You named it LITHIUM6, which does not fit the requirement above, and you
did not define it as monoisotopic, since you left empty the respective
field (WHAT(6) = mass number), this way getting the natural isotopic
composition. You should rather put 6.0 there and by the way not fill
WHAT(2) = atomic weight, as clearly recommended in the manual (MATERIAL
card), since there is normally no reason for overwriting the atomic weight
default value.
Best regards
Francesco
**************************************************
Francesco Cerutti
CERN-EN/STI
CH-1211 Geneva 23
Switzerland
tel. +41 22 7678962
On Wed, 13 Mar 2019, Загороднюк Алексей А. wrote:
>
> Dear Fluka users,
>
>
> I'm trying to irradiate ZnS compound doped with 6Li by thermal neutrons with
> 0.025 eV energy. After simulation the program shows that there is no 3H of
> 4He was generated as secondary particles. But according to books there is
> must be the following reaction: 6Li + n = 3H + 4He. Is it possible to model
> such reactions with thermal neutrons in Fluka? I attached the input file to
> the message.
>
>
> Thank you in advance,
>
>
> Alexy
>
>
>
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Received on Wed Mar 13 2019 - 22:31:04 CET