Occupational Radiation Exposure Analysis of US ITER DCLL TBM

Merrill, Brad J ; Cadwallader, Lee C ; Dagher, Mohamad

关键词: N TECHNOLOGY;    COLD TRAPS;    COOLANTS;    COOLING SYSTEMS;    EXPERIMENTAL REACTORS;    HEAT EXCHANGERS;    LITHIUM;    MAINTENANCE;    RADIATIONS;    RADIOACTIVE MATERIALS;    SIMULATION;    SOURCE TERMS;    VALVES Occupational Radiation Exposure;    ITER;    TBM;   

DOI  :  10.2172/915541
RP-ID  :  INL/EXT-07-13073
PID  :  OSTI ID: 915541
Others  :  TRN: US0805005

学科分类：原子、分子光学和等离子物理

美国|英语

来源: SciTech Connect

【 摘 要 】

This report documents an Occupational Radiation Exposure (ORE) analysis that was performed for the US International Thermonuclear Experimental Reactor (ITER) Dual Coolant Lead Lithium (DCLL) Test Blanket Module (TBM). This analysis was performed with the QADMOD dose code for anticipated maintenance activities for this TBM concept and its ancillary systems. The QADMOD code was used to model the PbLi cooling loop of this TBM concept by specifying gamma ray source terms that simulated radioactive material within the piping, valves, heat exchanger, permeator, pump, drain tank, and cold trap of this cooling system. Estimates of the maintenance tasks that will have to be performed and the time required to perform these tasks where developed based on either expert opinion or on industrial maintenance experience for similar technologies. This report details the modeling activity and the calculated doses for the maintenance activities envisioned for the US DCLL TBM.