原子能科学技术
原子能科學技術
원자능과학기술
ATOMIC ENERGY SCIENCE AND TECHNOLOGY
2014年
2期
372-377
,共6页
赵秋月%魏明建%周锐%宋波%潘宝林
趙鞦月%魏明建%週銳%宋波%潘寶林
조추월%위명건%주예%송파%반보림
富石英粉体%陷阱参数%热释光%等效剂量
富石英粉體%陷阱參數%熱釋光%等效劑量
부석영분체%함정삼수%열석광%등효제량
abundant quartz powder%trapping parameter%thermoluminescence%equiva-lent dose
本文使用RGD-3B型热释光仪,获得富石英粉体的发光曲线。在5 K/s的升温速率下,发光曲线呈现448、551、654、756 K 4个峰。用多种升温速率法确定4个发光峰的激活能、频率因子和陷阱电子寿命。在一定激活能范围(0.7~1.86 eV )内,随激活能的增加,等效剂量呈指数增大。温度在548~608 K ,等效剂量从54 Gy增至485 Gy ;在608~748 K ,等效剂量随温度的升高变化不大,在531 Gy附近波动。
本文使用RGD-3B型熱釋光儀,穫得富石英粉體的髮光麯線。在5 K/s的升溫速率下,髮光麯線呈現448、551、654、756 K 4箇峰。用多種升溫速率法確定4箇髮光峰的激活能、頻率因子和陷阱電子壽命。在一定激活能範圍(0.7~1.86 eV )內,隨激活能的增加,等效劑量呈指數增大。溫度在548~608 K ,等效劑量從54 Gy增至485 Gy ;在608~748 K ,等效劑量隨溫度的升高變化不大,在531 Gy附近波動。
본문사용RGD-3B형열석광의,획득부석영분체적발광곡선。재5 K/s적승온속솔하,발광곡선정현448、551、654、756 K 4개봉。용다충승온속솔법학정4개발광봉적격활능、빈솔인자화함정전자수명。재일정격활능범위(0.7~1.86 eV )내,수격활능적증가,등효제량정지수증대。온도재548~608 K ,등효제량종54 Gy증지485 Gy ;재608~748 K ,등효제량수온도적승고변화불대,재531 Gy부근파동。
Glow curves of abundant quartz powder were obtained with the RGD-3B ther-moluminescence (TL) reader .TL peaks with 448 ,551 ,654 ,756 K were identified at the heating rate of 5 K/s . The activation energy , frequency factor and lifetime of trapped charge were evaluated at ambient temperature for four peaks by the method of various heating rates .Within a certain range of activation energy ,the equivalent dose increases exponentially with the activation energy .The equivalent dose increases from 54 Gy to 485 Gy with the temperature from 548 K to 608 K ,and it fluctuates around 531 Gy with the temperature from 608 K to 748 K .