| Numéro |
EPJ Web Conf.
Volume 153, 2017
ICRS-13 & RPSD-2016, 13th International Conference on Radiation Shielding & 19th Topical Meeting of the Radiation Protection and Shielding Division of the American Nuclear Society - 2016
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|---|---|---|
| Numéro d'article | 01022 | |
| Nombre de pages | 6 | |
| Section | 1. Nuclear Data, Radiation Detection, Measurements & Dosimetry | |
| DOI | https://doi.org/10.1051/epjconf/201715301022 | |
| Publié en ligne | 25 septembre 2017 | |
https://doi.org/10.1051/epjconf/201715301022
Measurement of activation of helium gas by 238U beam irradiation at about 11 A MeV
RIKEN Nishina Center 2-1 Hirosawa, Wako, Saitama, Japan
a Corresponding author: horigome@riken.jp
Published online: 25 September 2017
A new helium-gas stripper system has been applied at the ~11 A MeV uranium beam of the Radioactive Isotope Beam Factory of the RIKEN accelerator facility. Although the gas stripper is important for the heavy-ion accelerator facility, the residual radiation that is generated is a serious problem for maintenance work. The residual dose was evaluated by using three-layered activation samples of aluminium and bismuth. The γ-rays from produced radionuclides with in-flight fission of the 238U beam and from the material of the chamber activated by neutrons were observed by using a Ge detector and compared with the values calculated by using the Monte-Carlo simulation code PHITS.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.