Influence of secondary neutrons on alpha-particle induced reaction cross section measurement below the Coulomb barrier
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866917346619162624 |
|---|---|
| author | Fujii, Yamato Otuka, Naohiko Sugihara, Kenta Aikawa, Masayuki Haba, Hiromitsu Murata, Isao |
| author_facet | Fujii, Yamato Otuka, Naohiko Sugihara, Kenta Aikawa, Masayuki Haba, Hiromitsu Murata, Isao |
| contents | The influence of the secondary neutrons on measurements of alpha-particle activation cross sections below the Coulomb barrier was studied for the $^\mathrm{nat}$Pt($α$,x)$^\mathrm{195m}$Pt reaction. We characterized the secondary neutron field by using the particle transport simulation code PHITS, and estimated the $^\mathrm{nat}$Pt(n,x)$^\mathrm{195m}$Pt yields by using the characterized neutron spectra and the $^\mathrm{nat}$Pt(n,x)$^{195m}$Pt cross sections in the JENDL-5/A library. We confirmed that the unexpectedly high $^\mathrm{nat}$Pt($α$,x)$^\mathrm{195m}$Pt cross sections below the Coulomb barrier measured by us are explained well by the $^\mathrm{nat}$Pt(n,x)$^\mathrm{195m}$Pt reaction induced by the secondary neutrons. This indicates that the secondary neutron effect is sometimes not negligible even in low energy charged-particle activation cross section measurements. We also studied the influence of the secondary light charged particles by the same approach, and confirmed that their influence is negligible. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_11497 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Influence of secondary neutrons on alpha-particle induced reaction cross section measurement below the Coulomb barrier Fujii, Yamato Otuka, Naohiko Sugihara, Kenta Aikawa, Masayuki Haba, Hiromitsu Murata, Isao Nuclear Experiment The influence of the secondary neutrons on measurements of alpha-particle activation cross sections below the Coulomb barrier was studied for the $^\mathrm{nat}$Pt($α$,x)$^\mathrm{195m}$Pt reaction. We characterized the secondary neutron field by using the particle transport simulation code PHITS, and estimated the $^\mathrm{nat}$Pt(n,x)$^\mathrm{195m}$Pt yields by using the characterized neutron spectra and the $^\mathrm{nat}$Pt(n,x)$^{195m}$Pt cross sections in the JENDL-5/A library. We confirmed that the unexpectedly high $^\mathrm{nat}$Pt($α$,x)$^\mathrm{195m}$Pt cross sections below the Coulomb barrier measured by us are explained well by the $^\mathrm{nat}$Pt(n,x)$^\mathrm{195m}$Pt reaction induced by the secondary neutrons. This indicates that the secondary neutron effect is sometimes not negligible even in low energy charged-particle activation cross section measurements. We also studied the influence of the secondary light charged particles by the same approach, and confirmed that their influence is negligible. |
| title | Influence of secondary neutrons on alpha-particle induced reaction cross section measurement below the Coulomb barrier |
| topic | Nuclear Experiment |
| url | https://arxiv.org/abs/2601.11497 |