TITLE

Pr3+-doped fluoro-oxide lithium glass as scintillator for nuclear fusion diagnostics

AUTHOR(S)
Arikawa, Yasunobu; Yamanoi, Kohei; Nakazato, Tomoharu; Estacio, Elmer Surat; Shimizu, Toshihiko; Sarukura, Nobuhiko; Nakai, Mitsuo; Norimatsu, Takayoshi; Azechi, Hiroshi; Murata, Takahiro; Fujino, Shigeru; Yoshida, Hideki; Kamada, Kei; Usuki, Yoshiyuki; Suyama, Toshihisa; Yoshikawa, Akira; Sato, Nakahiro; Kan, Hirofumi
PUB. DATE
November 2009
SOURCE
Review of Scientific Instruments;Nov2009, Vol. 80 Issue 11, p113504
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Experimental results are presented on the neutron scintillating properties of a custom-designed Pr3+(praseodymium)-doped lithium (Li) glass. Luminescence was observed at 278 nm wavelength, originating from the 5d-4f transition. Time-resolved measurements yielded about 20 ns decay times for ultraviolet and x-ray excitation while much faster decay times of about 6 ns were observed for alpha particle and neutron excitation. Actual time-of-flight data in laser fusion experiments at the GEKKO XII facility of the Institute of Laser Engineering, Osaka University reveal that it can clearly discriminate fusion neutrons from the much stronger x-rays signals. This material can promise improved accuracy in future scattered neutron diagnostics.
ACCESSION #
45515506

 

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