Neutron detection with LiCaAlF6 scintillator doped with 3d-transition metal ions

作者：Kawaguchi Noriaki^*; Yanagida Takayuki; Fujimoto Yutaka; Furuya Yuki; Futami Yoshisuke; Yamaji Akihiro; Watanabe Kenichi; Yamazaki Atsushi; Uritani Akira; Kajimoto Shinji; Fukumura Hiroshi; Kurosawa Shunsuke; Yokota Yuui; Pejchal Jan; Yoshikawa Akira

来源：Radiation Measurements, 2013, 55: 128-131.

DOI：10.1016/j.radmeas.2013.03.024

• Scintillator
• Neutron
• Single crystal
• Fluoride

Capability of thermal neutron detection was examined for LiCaAlF6 (LiCAF) scintillators doped with 3d-transition metal ions. Their radioluminescence spectra were measured with an 241-Am source to simulate Li-6(n, alpha)H-3 reaction. The sufficiently intense radioluminescence was observed for the Mn, Co and Cu dopants, while only a weak one was observed for Ti, V, Fe and Ni. A Mn doped LiCAF crystal, which showed the highest radioluminescence intensity, was coupled with a Si avalanche photodiode for the examination of its neutron response. It was confirmed that the average current of the photodiode clearly increased under excitation with 13.5 meV neutron flux.

• 出版日期2013-8