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一、引言对用于电离辐射监测的个人或环境剂量计来说,理想的要求是它对灯光或太阳光不敏感,但实际上,多数通常使用的热释光(TL)村料,都有明显的光敏特性和光衰退现象,后者尤为显著。对于这一点,在ISO标准草案中,就用于环境监测的热释光剂量计(TLD),做了如下的推荐:(1)已接受一定照射量的剂量计,在光照为10,000Lux的灯光或太阳光下连续放置7天,由于光照所引起的照射量的减少不应大于10％;
I. INTRODUCTION For personal or environmental dosimeters used for ionizing radiation monitoring, the ideal requirement is that it is insensitive to light or sunlight, but in fact most commonly used TL materials have The obvious photosensitive properties and optical degradation phenomenon, the latter is particularly significant. In this regard, in the draft ISO standard, the following recommendations were made for the use of thermoluminescent dosimeters (TLDs) for environmental monitoring: (1) Dosimeters that have received a certain amount of exposure at a lighting level of 10,000 Lux Or sunlight for 7 consecutive days, the reduction in exposure due to light should not exceed 10%;