Pr³⁺-doped lithium glass as a scintillator usable for nuclear fusion diagnostics

Authors

Takahiro Murata ⋅ JP Department of Chemistry, School of Science, Tokai University
Hirofumi Kan ⋅ JP Central Research Laboratory, Hamamatsu Photonics, Japan
Nakahiro Sato ⋅ JP Central Research Laboratory, Hamamatsu Photonics, Japan
Akira Yoshikawa ⋅ JP Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
Toshihisa Suyama ⋅ JP Tokuyama Corporation Shibuya
Yoshiyuki Usuki ⋅ JP Furukawa Co., Ltd., Tsukuba, Japan
Kei Kamada ⋅ JP Furukawa Co., Ltd., Tsukuba, Japan
Hideki Yoshida ⋅ JP Ceramic Research Center of Nagasaki
Shigeru Fujino ⋅ JP Department of Materials Process Engineering, Graduate School of Engineering, Kyushu University
Yasunobu Arikawa ⋅ JP Institute of Laser Engineering, Osaka University
Hiroshi Azechi ⋅ JP Institute of Laser Engineering, Osaka University
Takayoshi Norimatsu ⋅ JP Institute of Laser Engineering, Osaka University
Mitsuo Nakai ⋅ JP Institute of Laser Engineering, Osaka University
Nobuhiko Sarukura ⋅ JP Institute of Laser Engineering, Osaka University
Toshihiko Shimizu ⋅ JP Institute of Laser Engineering, Osaka University
Elmer S. Estacio ⋅ JP Institute of Laser Engineering, Osaka University
Tomoharu Nakazato ⋅ JP Institute of Laser Engineering, Osaka University
Kohei Yamanoi ⋅ JP Institute of Laser Engineering, Osaka University

Abstract

We present results on the neutron scintillating properties of a custom-designed Pr³⁺(Praseodymium)-doped lithium glass. Luminescence due to the 5d-4f transition was observed at 278 nm. Time-resolved spectroscopy yielded ~20 ns decay times for ultraviolet and x-ray excitation while faster decay times of ~6 ns were observed for alpha-particle and neutron excitation. Time-of-flight data in laser fusion experiments at the GEKKO XII facility of the Inst of Laser Engineering, Osaka Univ reveal that this material can clearly discriminate fusion neutrons from the much stronger x-rays signals. The results promise improved accuracy in future scattered neutron diagnostics.

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Issue

2009: Proceedings of the 27th Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2009-2A-02

Section

Photonics and Spectroscopy

Published

2009-10-28

How to Cite

[1]

T Murata, H Kan, N Sato, A Yoshikawa, T Suyama, Y Usuki, K Kamada, H Yoshida, S Fujino, Y Arikawa, H Azechi, T Norimatsu, M Nakai, N Sarukura, T Shimizu, ES Estacio, T Nakazato, and K Yamanoi, Pr³⁺-doped lithium glass as a scintillator usable for nuclear fusion diagnostics, Proceedings of the Samahang Pisika ng Pilipinas 27, SPP-2009-2A-02 (2009). URL: https://proceedings.spp-online.org/article/view/SPP-2009-2A-02.