Problem 1733

Summary:	The decay scheme of 234Pa in Geant 4 does not include the b- decay of the isomeric state of 234mPa
Product:	Geant4	Reporter:	cazes <a.cazes>
Component:	processes/hadronic/models/radioactive_decay	Assignee:	dennis.herbert.wright
Status:	RESOLVED FIXED
Severity:	normal	CC:	dennis.herbert.wright
Priority:	P5
Version:	10.1
Hardware:	All
OS:	Linux
Attachments:	Presentation describing the problem investigation.

Description cazes 2015-04-15 15:57:49 CEST

Hello,

I found a problem in the decay of the Uranium chain : 


- 234Th decay into 234Pa*, which is OK in Geant 4.

- Then 234Pa* should goes to 234mPa, that decays into 234U ground state. Instead, 234Pa* goes to 234Pa ground state, and the decays into excited states of 234U.


I run my simulation on the IN2P3 Computing Center, with the following installed software: Geant 4.10.1 and Radioactive decay 4.2

You can see more details in the presentation I attached.

Thank you,
  Antoine.

Comment 1 cazes 2015-04-15 16:00:33 CEST

Created attachment 331 [details]
Presentation describing the problem investigation.

Comment 2 dennis.herbert.wright 2015-06-11 00:01:41 CEST

I reproduced your problem in version 10.1.   The bug was fixed and your example now runs correctly in the ref05 version of Geant4.  The fix will be included in the Geant4 10.2 beta release this month.