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J Radiat Prot > Volume 16(2); 1991 > Article
Journal of Radiation Protection 1991;16(2):17-0.
조직 표면에서의 베타선 흡수선량 측정
하석호;김정묵;육종철;
Measurement of Absorbed Dose at the Tissue Surface from a Plain $^{90}Sr+^{90}Y$ Beta Sources
Hah, Suck-Ho;Kim, Jeong-Mook;Yook, Chong-Chul;
ABSTRACT
Beta ray $(^{90}Sr+^{90}Y)$ absorbed dose at tissue surface was measured from the distance of 30cm by use of extrapolation chamber. In the measurement, following factors were considered: effective area of collecting electrode, polarity effect, ion recombination and window attenuation. The measured absorbed dose rate at tissue surface was $1.493{mu}Gy/sec$ with ${pm}2.9%$.
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