Energy Response of an Optically Stimulated Luminescence Dosemeter to Low Energy Continuous X-rays

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  • 光刺激ルミネセンス線量計の低エネルギー連続Ｘ線に対するエネルギー特性
  • ヒカリ シゲキ ルミネセンスセンリョウケイ ノ テイエネルギー レンゾク Xセン ニ タイスル エネルギー トクセイ

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Abstract

To investigate the energy response of an optically stimulated luminescence dosemeter (OSLD) with low energy photons, OSLDs were irradiated by low energy continuous X-rays which have various energy distributions. The effective energy of the X-ray was in the range 10.0-14.5keV, and homogeneity factor was in the range 0.5-0.9. As a result, at 11.0keV, the OSLD-to-ionization chamber ratio was maintained at almost a constant level from 1.03 at a 0.5 to 1.08 at a 0.7 homogeneity factor. However, the OSLD tended to overestimate measured value with an increase of effective energy. Probably, this error can be eliminated by calculating an appropriate correction factor.

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