²⁰¹Tl의 생산과정에서 발생한 방사성 폐기물의 제염 효율 평가

• 영문명: Evaluation of the Decontamination Efficiency of Radioactive Wastes Generated during the Production of ²⁰¹Tl
• 발행기관: 대한방사선과학회(구 대한방사선기술학회)
• 저자명: 허재승(Jae-Seung Heo) 김상록(Sang-Rok Kim) 김기섭(Gi-Sub Kim) 안윤진(Yun-jin Ahn) 김정민(Jung-Min Kim)
• 간행물 정보: 『방사선기술과학』방사선기술과학 제44권 제5호, 481~487쪽, 전체 7쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2021.10.30

영문 초록

This study was conducted for the purpose of efficient radioactive waste disposal and management. Experiment was evaluated the decontamination efficiencies of the four types decontamination materials(Water, Alcohol, Decontamination Water, Decontamination Gel) with radioactive wastes generated during radio-pharmaceutical production process at Korea Institute Radiological and Medical Sciences(KIRAMS). The radioactive waste sample used in experiment is a lead plate of the fume hood that was disposed in April, 2019. In the experimental method, radioactive waste was measured before and after decontamination using a HPGe semiconductor detector and Gamma survey meter. The measured values before and after decontamination were evaluated for decontamination efficiency as a percentage. As a result, it was confirmed that a lot of specific activity and surface dose rate was removed from the radioactive wastes. In particular, when decontamination water was used, most of the radioactivity of radioactive wastes was removed. Considering these results, if decontamination water is used in decontamination of radioactive waste, decontamination efficiency equivalent to the disposition criteria can be expected with just one decontamination treatment. In addition, in the case of water and alcohol, only on decontamination was effective in approximately 75% and 95%. Otherwise, when decontamination gel was used, it was confirmed that the largest deviation occurred among all experimental results.

목차

Ⅰ. 서론

Ⅱ. 대상 및 방법

Ⅲ. 결과

Ⅳ. 고찰

Ⅴ. 결론

키워드

방사성 폐기물 ²⁰ ¹Tl 제염 자체처분 방사선안전관리 Radioactive Waste ²⁰ ¹Tl Decontamination Self Disposal Management of Radiation Safety