Radiological Concentration Distribution of ¹³⁴Cs and ¹³⁷Cs Due to a Hypothetical Accident of TRIGA Research Reactor  

作　　者：Arif Jahan Sarawer M. Ajijul Hoq M. Abu Khaer M. Shafiqul Islam M. Mominur Rahman M. Tareque Chowdhury M. Mizanur Rahman Arif Jahan Sarawer;M. Ajijul Hoq;M. Abu Khaer;M. Shafiqul Islam;M. Mominur Rahman;M. Tareque Chowdhury;M. Mizanur Rahman(Department of Physics, Jahangirnagar University of Bangladesh, Dhaka, Bangladesh;Institute of Energy Science, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh)

机构地区：[1]Department of Physics, Jahangirnagar University of Bangladesh, Dhaka, Bangladesh [2]Institute of Energy Science, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh

出　　处：《World Journal of Nuclear Science and Technology》2021年第3期119-131,共13页核科学与技术国际期刊（英文）

摘　　要：The assessment of the radiological concentration of ¹³⁴Cs and ¹³⁷Cs owing to hypothetical accident of TRIGA Mark-II research Reactor at AERE, Savar, Bangladesh is presented here in this work. The concentration of ¹³⁴Cs and ¹³⁷Cs was estimated in different pathways consisting of the ingestion of plants, milk, and meat. The highest air concentration has been determined at 65 m distance from the core of the reactor. The maximum concentration passed off without delay simply after the accident in various directions. Local meteorological information such as average wind velocity and wind frequency were analyzed. Considering all directions, the highest concentration has been observed in the “S” direction. The concentrations of ¹³⁴Cs and ¹³⁷Cs were determined in ground, vegetation, milk and meat. The concentration of ¹³⁷Cs is investigated to be higher than the ¹³⁴Cs. The concentration of ¹³⁴Cs and ¹³⁷Cs was found to be lower in vegetation, milk, and meat than that of ground concentration. Overall, in this study, the concentration in meat has been investigated to be lower. In case of a reactor accident, the concentration assessment due to the ingestion of vegetables, milk, and meat will be a valuable guide for insuring radiological protection across the research reactor at AERE, Savar, Bangladesh.The assessment of the radiological concentration of ¹³⁴Cs and ¹³⁷Cs owing to hypothetical accident of TRIGA Mark-II research Reactor at AERE, Savar, Bangladesh is presented here in this work. The concentration of ¹³⁴Cs and ¹³⁷Cs was estimated in different pathways consisting of the ingestion of plants, milk, and meat. The highest air concentration has been determined at 65 m distance from the core of the reactor. The maximum concentration passed off without delay simply after the accident in various directions. Local meteorological information such as average wind velocity and wind frequency were analyzed. Considering all directions, the highest concentration has been observed in the “S” direction. The concentrations of ¹³⁴Cs and ¹³⁷Cs were determined in ground, vegetation, milk and meat. The concentration of ¹³⁷Cs is investigated to be higher than the ¹³⁴Cs. The concentration of ¹³⁴Cs and ¹³⁷Cs was found to be lower in vegetation, milk, and meat than that of ground concentration. Overall, in this study, the concentration in meat has been investigated to be lower. In case of a reactor accident, the concentration assessment due to the ingestion of vegetables, milk, and meat will be a valuable guide for insuring radiological protection across the research reactor at AERE, Savar, Bangladesh.

关 键 词：Concentration Hypothetical Accident Pathway Radiological Protection TRIGA Mark-II 

分 类 号：TL3[核科学技术—核技术及应用]