[16p-K501-1~19] 2.2 Radiation generators, Detector development, Measurement technology

4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)

[16p-K501-12] Cross-section Measuremsnt for O-17 Production – Response of Neon Proportional Counter for Neutron -

〇Yoshihiko Tanimura¹, Sho Nishino¹, Takuya Furuta¹, Yuji Kishimoto², Masayuki Hagiwara³, Daiki Sato¹, Yuta Kumagai¹, Hiroki Matsuda³, Yuho Hirata¹, Syuichi Tsuda¹ (1.JAEA, 2.KEK, 3.QST)

Keywords:

Oxygen-17,Neon proportional counter,Mono-energetic neutron

The ¹⁷O, which is a stable isotope, is expected to be utilized as a tracer. The small natural abundance of 0.037% prevent enriching the ¹⁷O from the natural oxygen. Therefore, we are developing a high-purity ¹⁷O generating method using ²⁰Ne(n,alpha)¹⁷O reaction. As the precise cross-section data of this reaction is necessary to develop the method, a neon proportional counter and 5.0 MeV mono-energetic neutrons are used to measure the cross-section data. The pulse height spectrum calculated using the PHITS code can reproduce the measured spectrum. This means the cross-section can be evaluated by using the counter.