Two-dimensional ultravioletray sensor utilizing photostimulated luminescence in Eu-doped KCl phosphors

Hidehito Nanto; Yoshiaki Hirai; Fumitaka Endo; Mitsuo Ikeda; Shouichi Nasu; Nozomu Takeuchi

doi:10.1117/12.180005

12 July 1994 Two-dimensional ultravioletray sensor utilizing photostimulated luminescence in Eu-doped KCl phosphors

Hidehito Nanto, Yoshiaki Hirai, Fumitaka Endo, Mitsuo Ikeda, Shouichi Nasu, Nozomu Takeuchi

Proceedings Volume 2278, X-Ray and UV Detectors; (1994) https://doi.org/10.1117/12.180005
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

An efficient photostimulated luminescence (PSL) with a peak at about 420 nm is observed by stimulating ultra-violet (UV)-ray-irradiated europium-doped potassium chloride (KCl:Eu) crystalline phosphor with 560 - 580 nm light. The excitation and emission mechanism for the 420 nm PSL in UV-ray irradiated KCl:Eu phosphors are proposed. It is found that the PSL intensity increased with increasing irradiation dose of UV-ray, which indicating that the KCl:Eu is one of the most attractive candidates for two-dimensional UV-ray imaging sensor utilizing PSL phenomenon.

Citation Download Citation

Hidehito Nanto, Yoshiaki Hirai, Fumitaka Endo, Mitsuo Ikeda, Shouichi Nasu, and Nozomu Takeuchi "Two-dimensional ultravioletray sensor utilizing photostimulated luminescence in Eu-doped KCl phosphors", Proc. SPIE 2278, X-Ray and UV Detectors, (12 July 1994); https://doi.org/10.1117/12.180005

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