Absolute response of a Fuji BAS-TR imaging plate to low-energy protons (<0.2 MeV) and carbon ions (<1 MeV)

Sadaoki Kojima; Tatsuhiko Miyatake; Shunsuke Inoue; Thanh Hung Dinh; Noboru Hasegawa; Michiaki Mori; Hironao Sakaki; Mamiko Nishiuchi; Nicholas P Dover; Yoichi Yamamoto; Teru Sasaki; Fuyumi Ito; Kotaro Kondo; Takashi Yamanaka; Masaki Hashida; Shuji Sakabe; Masaharu Nishikino; Kiminori Kondo

doi:10.1063/5.0035618

Absolute response of a Fuji BAS-TR imaging plate to low-energy protons (<0.2 MeV) and carbon ions (<1 MeV)

Rev Sci Instrum. 2021 Mar 1;92(3):033306. doi: 10.1063/5.0035618.

Authors

Sadaoki Kojima¹, Tatsuhiko Miyatake¹, Shunsuke Inoue², Thanh Hung Dinh¹, Noboru Hasegawa¹, Michiaki Mori¹, Hironao Sakaki¹, Mamiko Nishiuchi¹, Nicholas P Dover¹, Yoichi Yamamoto¹, Teru Sasaki¹, Fuyumi Ito¹, Kotaro Kondo¹, Takashi Yamanaka², Masaki Hashida², Shuji Sakabe², Masaharu Nishikino¹, Kiminori Kondo¹

Affiliations

¹ Kansai Photon Science Institute, Quantum Beam Science Directorate, National Institutes for Quantum and Radiological Science and Technology, 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan.
² Advanced Research Center for Beam Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.

PMID: 33820038
DOI: 10.1063/5.0035618

Abstract

This paper reports on the absolute response of a Fuji BAS-TR image plate to relatively low-energy protons (<0.2 MeV) and carbon ions (<1 MeV) accelerated by a 10-TW-class compact high-intensity laser system. A Thomson parabola spectrometer was used to discriminate between different ion species while dispersing the ions according to their kinetic energy. Ion parabolic traces were recorded using an image plate detector overlaid with a slotted CR-39 solid-state detector. The obtained response function for the protons was reasonably extrapolated from previously reported higher-ion-energy response functions. Conversely, the obtained response function for carbon ions was one order of magnitude higher than the value extrapolated from previously reported higher-ion-energy response functions. In a previous study, it was determined that if the stopping range of carbon ions is comparable to or smaller than the grain size of the phosphor, then some ions will provide all their energy to the binder resin rather than the phosphor. As a result, it is believed that the imaging plate response will be reduced. Our results show good agreement with the empirical formula of Lelasseux et al., which does not consider photo-stimulated luminescence (PSL) reduction due to the urethane resin. It was shown that the PSL reduction due to the deactivation of the urethane resin is smaller than that previously predicted.