人类牙釉质重量与电子自旋共振剂量测定法中CO3(3-)信号强度之间的关系
Relation between the weight of human tooth enamel and the CO3(3-) signal intensity on the ESR dosimetry.
作者信息
Iwasaki M, Miyazawa C, Shimano T
机构信息
Department of Dental Radiology, Ohu University School of Dentistry.
出版信息
Ou Daigaku Shigakushi. 1990 Jul;17(2):95-100.
Experiments were made to determine the dependence of CO3(3-) signal intensity on enamel weight in the ESR dosimetry utilizing teeth. After all human tooth enamel samples were crushed into 500-840 micrometers particles, they were irradiated with various doses of 60Co gamma rays at the same dose rate. Irradiated samples were distributed into 10-500 milli-grams weights and were measured with ESR instrument. The relation between CO3(3-) signal intensity and enamel weight have linearity up to 300 mg weight under the same dose as shown by measurements.
进行了实验以确定在利用牙齿的电子自旋共振剂量测定法中，碳酸根离子（CO3(3-)）信号强度对牙釉质重量的依赖性。在将所有人牙釉质样本粉碎成500 - 840微米的颗粒后，以相同剂量率用不同剂量的60Coγ射线对其进行辐照。将辐照后的样本分成10 - 500毫克的重量，并使用电子自旋共振仪器进行测量。测量结果表明，在相同剂量下，碳酸根离子（CO3(3-)）信号强度与牙釉质重量之间的关系在重量达到300毫克之前呈线性。
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