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The study on optically stimulated luminescence dosimeter based on the SrS:Eu, Sm and CaS:Eu, Sm
刘艳平, 陈朝阳, 范艳伟, 巴维真, 郭 旗, 陆 妩, 汤新强, 杜彦召
2008 (8):
3156-3162.
doi: 10.1088/1674-1056/17/8/064
摘要
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With the increasing use of nuclear energy, there is a need for a
wider range of efficient dosimeters for radiation detection and
assessment. There has been a tremendous growth in the development of
radiation detectors and devices in the past few decades. In recent
years, the development of new materials for radiation dosimetry has
progressed significantly. Alkaline earth sulfides (AES) have been
known for a long time as excellent and versatile phosphor materials.
In the present investigation, a number of phosphor samples such as
mono-, binary and ternary sulfides of alkaline earths (II$^{\rm
a}$-VI$^{\rm b})$ have been prepared and their TL properties have
been studied with respect to exposure (x-ray) response and fading.
In this paper, some results on SrS:Eu, Sm and CaS:Eu, Sm phosphors
are presented. A type of novel OSL dosimeter is described. The
dosimeter takes advantage of the characteristics of charge trapping
materials SrS:Eu, Sm and CaS:Eu, Sm that exhibit optically
stimulated luminescence (OSL). The measuring range of the dosimeter
is from 0.01 to 1000\,Gy. The OSL dosimeters provide capability for
remote monitoring radiation locations which are difficult to access
and hazardous. This equipment is relatively simple, small in size
and has low power consumption. The device is suitable for space
radiation dose exploration. In addition, it also can be used in IC
and other radiation occasions and has good prospects.
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