Re: [fluka-discuss]: scoring emission products of unstable isotopes in YSO

From: Santana, Mario <msantana_at_slac.stanford.edu>
Date: Wed, 11 Dec 2013 11:23:26 -0800

Milena,

It is also my understanding that those photons (from isomers) are
included, but bear in mind that, as of now (future release may correct
that for those resulting from low energy neutron interactions),
calculation of isomeric states is not accurate, as a fixed 1:1 ratio is
assumed between ground and isomeric states.

Mario


On 12/9/13 6:01 AM, "Milena Quittnat" <milena.eleonore.quittnat_at_cern.ch>
wrote:

>Dear Alberto and FLUKA discuss,
>
>thank you very much for the last information.
>My last question would be the following:
>When I am scoring the isolethargic spectrum for the decay photons, are
>the de-excitation photons from the isomers included?
>In my understanding, I am scoring all photons from de-excitation
>processes and from electron capture.
>Sincerely yours
>Milena Quittnat
>
>
>> Dear FLUKA discuss,
>>
>> as the answer to a previous problem was incredibly helpful, I am hoping
>>for some more help with the following issue:
>>
>> I try to score the energy emitted by unstable isotopes in an YSO
>>crystal during irradiation.
>> As Yttrium has a large cross section for thermal neutron capture (1.3
>>barn), it might produce a prohibitive background to the general light
>>output, a "constant noise".
>> My goal is to score the de-excitation- and decay-products of the
>>created isotopes, mainly the emitted photons and the (overall) deposited
>>energy.
>> With this information I would like to study if the isotopes, e.g. the
>>emitted gamma rays, induce further scintillation.
>>
>> Milena Quittnat
>> <131125_YSO_isotopes_FLUKA_discuss.inp>
>
Received on Wed Dec 11 2013 - 21:26:06 CET