| Summary: | neutronHP ignores metastable states | ||
|---|---|---|---|
| Product: | Geant4 | Reporter: | michel.maire |
| Component: | processes/hadronic/models | Assignee: | dennis.herbert.wright |
| Status: | RESOLVED WONTFIX | ||
| Severity: | minor | ||
| Priority: | P4 | ||
| Version: | 10.4 | ||
| Hardware: | All | ||
| OS: | All | ||
|
Description
michel.maire
2018-08-28 10:05:43 CEST
*** Problem 2078 has been marked as a duplicate of this problem. *** Hi Michel, There is no ParticleHP process which can produce very long-lived meta-stable states. According to Tatsumi there are a few such nuclides, including Ag[110m2], which live so long that they are not included in ENDF or similar databases. I checked for myself and indeed there are no such data in ENDF, and therefore in G4NDL, for the formation of this state. Obviously you have cross section data for thermal capture, but it is not easy to add the data to G4NDL, and maybe it would not even be appropriate since the lifetime of this state is longer than the ground states of many nuclei. Once Ag[110m2] is produced, the radioactive decay model can de-excite it, but currently a special Geant4 model would have to be developed in order to produce it. Dennis |