Problem 1920

Summary:	wrong intensity in gamma-ray decay lines
Product:	Geant4	Reporter:	Nikolas Patronis <npatronis>
Component:	processes/hadronic/models/radioactive_decay	Assignee:	desorgher
Status:	RESOLVED FIXED
Severity:	major	CC:	dennis.herbert.wright, desorgher, gilles.gregoire, kurasige, laurent.desorgher
Priority:	P4
Version:	10.2
Hardware:	All
OS:	Linux

Description Nikolas Patronis 2016-11-27 07:50:41 CET

Depending on the gcc version I get different intensity in the decay of Mn-54 (single gamma-ray 835 keV). More specifically I get the half of intensity for the 5.4.0 version and I get the expected intensity for the gcc 4.8.4. I have also seen problems with the intensity of low energy lines of Eu-152 (121 keV).

Comment 1 Gilles Grégoire 2016-11-29 16:30:08 CET

I have already submitted the Mn-54 decay problem which is linked to radioactive decay database (Problem 1852) .

https://bugzilla-geant4.kek.jp/show_bug.cgi?id=1852

You should compare radioactive decay database versions. 
For Eu-152, you can try to compare Geant4 database with ENSDF files at NNDC or files from DDEP-NUCLEIDES database. 

Best regards,

Gilles Gregoire

Comment 2 Laurent Desorgher 2017-01-30 17:19:32 CET

Hello,

As mentioned by Gilles Gregoire the Mn-154 is no longer an issue in Geant4.10.3.
For the Eu152 I need to check it.


Best regards

Comment 3 Laurent Desorgher 2017-11-08 20:59:41 CET

Hello,

I have done test of the decay of Eu-152 with Geant4.10.3p01 and the next release Geant4.10.4 that will come out in Dece,ber. I get the good intensity of the major gamma lines 121,244.70,344.28 ... keV



Best regards

Laurent Desorgher