표준 감마선 전리함 장치에 의한 방사능 비교 = Comparative Measurement of Radioactivity with Standard Gamma-ray Ionization Chamber System

국문 초록 (Abstract)

Well type 전리함과 미세전류 측정회로를 사용하여 표준 감마선 전리함 장치를 개발하였다. 미세전류는 automatic Townsend balance with stepwise compensation방법을 사용하여 측정하였다.
()Ra를 기준 선원으로 택하여 감마 방출핵종인 ()Am, ()Ba, ()Co, ()Cs, ()Na에 대한 비교 교정인자를 산출하였으며, 감마 에너지의 함수로서 검출효율곡선을 구하였다.

다국어 초록 (Multilingual Abstract)

A Standard gamma-ray ionization chamber system was developed with a well type ionization chamber and micro current measuring circut. Micro current was measured by the automatic Townsend balance with stepwise compensation method.
For gamma emitting nuclides such as ()Am, ()Ba, ()Co, ()Cs, and ()Na, relative calibration factors to ()Ra reference source were calculated and detection effciency curve was determined as a fudnction of gamma energy.