| Summary: | Muon propagation in Z>94 | ||
|---|---|---|---|
| Product: | Examples/Basic and Novice | Reporter: | aitopuz <aitopuz> |
| Component: | B1 | Assignee: | Vladimir.Ivantchenko |
| Status: | RESOLVED INVALID | ||
| Severity: | normal | ||
| Priority: | P4 | ||
| Version: | 10.6 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Attachments: |
B1DetectorConstruction
Waste_Am Waste_Am |
||
Hello, I have tried your detector construction class but it does not compile with B1 example. After few minor fixes it compiles and I run high energy muons without crashes. So, the problem is not reproduced. A also checked possible places inside Geant4 physics models which potentially may have problems for high Z targets and do not identify unsafe handling of the data. Normally there are checks on Z and if data are not available some backup solutions are applied. So, in order to understand if the problem exist or not we need more information. You need describe in very details what you doing or send tar file with the application and macro. VI Created attachment 687 [details]
Waste_Am
Created attachment 688 [details]
Waste_Am
Hello,
Thank you for your email. We are able to compile all our packages; however, we are not able to run it when Z>94. I attached the package entitled "Waste_Am" where we encountered this problem upon your request. We will be waiting for your reply at your earliest convenience. Thank you.
Sincerely,
AIT
Comment on attachment 687 [details]
Waste_Am
This is our problematic package.
Hello, likely the problem is understood and there is no bug in Geant4. The reason of what is happens - if you have 10 cm Am target this is above critical size and such target should explore due to nuclear reaction above critical condition. Number of secondary neutrons is increased and code cannot stop. The solution may be to reduce size of the target. VI |
Created attachment 677 [details] B1DetectorConstruction We are investigating the muon propagation through the nuclear materials and we remarked that our simulations are getting crashed/collapsed when we use the target materials with the atomic number greater than 94, e.g. americium and californium. I have attached my B1DetectorConstruction.cc for your review. I will be waiting for your reply at your earliest convenience. Thank you.