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Question Re: gamma rays from decays of nuclear excited states 

Keywords: gamma rays from decays of nuclear excited states
Forum: Documentation and Examples
Re: Question gamma rays from decays of nuclear excited states (Kazuyoshi Furutaka)
Re: None Re: gamma rays from decays of nuclear excited states (Fan Lei)
Date: 03 Aug, 2005
From: Kazuyoshi Furutaka <Kazuyoshi Furutaka>

Dear Fan,

Thank you very much for your valuable information.

From: fan.lei@cern.ch
Subject: Re: gamma rays from decays of nuclear excited states
Date: Wed, 3 Aug 2005 05:39:29 -0700

> G4RadioactiveDecay will treat the decays of isotopes defined in the
> datadase $G4RADIOACTIVEDATA. Only known isomers are in this database,
> not any nuclei with a give excitation energy which is dealt with by the
> G4PhotonEvaporation process.
> 
> However it is possible to simulate the decay of 15N(10.8MeV) with
> G4RadioactiveDecay, all you need to do is to add its decay scheme to the
> file "z7.a15" in $G4RADIOACTIVEDATA.

As an example, I looked into the file "z27.a60" in
$G4RADIOACTIVEDATA for 60Co decay.
It seems that it only contains data for radioactive
decays but the EM decays in the daughter nuclide and
that to follow the whole decay we need the "z28.a60"
in $G4LEVELGAMMADATA.

Then, for 15N(10.8MeV) case, I think we need two "z7.a15"
files, one in $G4RADIOACTIVEDATA to provide starting
point of the decay, and the other in $G4LEVELGAMMADATA
to proceed EM decays (though formats of the two files
would be different).

Am I correct?


Could you give me pointers to formats, sources, and
policy of the data files in the two directories?

Thank you in advance.

Yours,
Kazuyoshi
--
Kazuyoshi Furutaka
furutaka@jb3.so-net.ne.jp
furutaka@tokai.jnc.go.jp

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