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Proceedings Paper

Optically stimulable transparent KCl:Eu crystal as a storage material for two-dimensional UV-ray or x-ray imaging sensors
Author(s): Hidehito Nanto; Kazuhiko Murayama; Fumitaka Endo; Yoshiaki Hirai; Shin-ichi Taniguchi; Nozomu Takeuchi
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Paper Abstract

Intense optically stimulated luminescence (OSL) with a peak at about 420 nm is observed in ultraviolet (UV)-ray or x-ray irradiated europium-doped potassium chloride (KCl:Eu) crystals. The OSL intensity is increased with increasing UV-ray or x-ray irradiation dose. This suggests that KCl:Eu crystal is useful as a material for two-dimensional UV-ray or x-ray imaging sensor utilizing OSL phenomenon. The results obtained are consistent with the proposed emission mechanisms of the 420 nm OSL peak, based on the recombination of electrons released from the F centers with Eu3 ions. The excitation mechanism for the OSL in UV-ray irradiated KCl:Eu crystals is also discussed.

Paper Details

Date Published: 29 December 1993
PDF: 10 pages
Proc. SPIE 1987, Recording Systems: High-Resolution Cameras and Recording Devices and Laser Scanning and Recording Systems, (29 December 1993); doi: 10.1117/12.165189
Show Author Affiliations
Hidehito Nanto, Kanazawa Institute of Technology (Japan)
Kazuhiko Murayama, Kanazawa Institute of Technology (Japan)
Fumitaka Endo, Kanazawa Institute of Technology (Japan)
Yoshiaki Hirai, Kanazawa Institute of Technology (Japan)
Shin-ichi Taniguchi, Kanazawa Univ. (Japan)
Nozomu Takeuchi, Kanazawa Univ. (Japan)


Published in SPIE Proceedings Vol. 1987:
Recording Systems: High-Resolution Cameras and Recording Devices and Laser Scanning and Recording Systems
Leo Beiser; Reimar K. Lenz, Editor(s)

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