Problem 1941 - Cannot use importance sampling for more than one particle type
Summary: Cannot use importance sampling for more than one particle type
Status: RESOLVED MOVED
Alias: None
Product: Geant4
Classification: Unclassified
Component: geometry/biasing (show other problems)
Version: 10.3
Hardware: All All
: P4 enhancement
Assignee: alexander.howard
URL:
Depends on:
Blocks:
 
Reported: 2017-02-17 20:36 CET by Daren Sawkey
Modified: 2019-12-17 16:26 CET (History)
0 users

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Description Daren Sawkey 2017-02-17 20:36:46 CET 
It does not appear possible to use importance sampling for more than one particle type. Another user has given a detailed description in hypernews:

http://hypernews.slac.stanford.edu/HyperNews/geant4/get/biasing_scoring/197.html

I find the same issue with versions 10.2 and 10.3.
Comment 1 alexander.howard 2017-03-06 09:42:36 CET 
Thanks for point this out. I need to understand if it's a genuine bug or a design limitation. I'll investigate further.
Comment 2 alexander.howard 2019-07-12 14:18:46 CEST 
This is almost certainly an enhanced feature which is in the plan of work for this year within the Biasing Working group. We will also endeavour to see if it can be better resolved using the Generic Biasing approach.
Comment 3 Daren Sawkey 2019-12-17 16:26:20 CET 
This is now moved to a feature request.