A windowless gas target for low-energy 4He (12C, 16O) γ experiment: improvement to reduce 16O backgrounds
| Autor: | Kenichi Hamamoto, D. Kodama, Kunihiro Fujita, T. Mituzumi, Kenshi Sagara, Hiroyuki Yamaguchi, Tadahiko Ban, Nariaki Tao, Yoshihiro Narikiyo |
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| Rok vydání: | 2015 |
| Předmět: |
Physics
business.industry Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Pollution Particle identification Analytical Chemistry Nuclear physics Cross section (physics) Optics Low energy Nuclear Energy and Engineering Radiology Nuclear Medicine and imaging business Spectroscopy Beam (structure) |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 305:903-906 |
| ISSN: | 1588-2780 0236-5731 |
| DOI: | 10.1007/s10967-015-4033-5 |
| Popis: | A blow-in type windowless thick He gas target has been developed to measure 4He(12C,16O) γ cross section for astrophysical interests. We use a 12C beam of energy from 6 to 2.8 MeV and detect 16O recoils at forward angles. Numerous 12C backgrounds have been rejected by particle identification techniques. 16O backgrounds from the target are not many but fatally harmful. Our techniques to reduce the 16O backgrounds are described. |
| Databáze: | OpenAIRE |
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