輻射防護環境輻射量測與模式驗證之案例研究與方法創新

Case Studies of Environmental Radiation Measurement and Model Validation with Innovative Ways for Radiation Protection

方新發(Hsin-Fa Fang)

指導教授 ： 王竹方

國立清華大學/原子科學院/生醫工程與環境科學系/博士(2015年)

https://doi.org/10.6843/NTHU.2015.00606

摘要

環境輻射量測與模式模擬對於環境與人們的輻射防護，扮演著非常重要的角色。此論文中將報告對於環境輻射監測與大氣模式驗證的精進努力，以提升輻射防護能量。於研究中，此論文作者發現一些創新方法，來進行環境輻射量測與模式結果驗證與展示，包括設計一個新型氣冷式蒸餾裝置來用於環境氚水監測和一個行動環境偵測系統 (MESS) 用於管理經營環境輻射偵測等。二者都已經獲得美國與本國專利。 本論文第一章為對核能重要性、輻射防護、環境輻射監測與模式模擬之簡要概述。第二章為對環境輻射監測與模式驗證之文獻回顧。第三章詳細描述該氣冷式蒸餾裝置，該裝置於組合與操作上，都比傳統蒸餾裝置簡便。當裝置組成之一的樣品容器高度從7 公分增加到20 公分，除汙因子將增加約20 倍。第四章內容有MESS 的詳細設計說明，MESS 藉由地理資訊系統 (GIS)，可依據工作人員位置與預先設定的指定區域，經營管理環境輻射監測活動及在任何地方即時展示最新偵測結果。MESS 可以確實改善環境偵測團隊的效能與靈活度。第5 章呈現對於大氣擴散展示與評估平台(ADDEP)的描繪，可以展示大器擴散模擬結果於Google Earth 上，並可藉由網路介面整合資料數據以驗證模擬結果，有助於決策及模式改善。最後，第六章為此論文的總結。

關鍵字

環境輻射 ； 量測 ； 模式 ； 氚 ； 蒸餾 ； 除汙因子 ； 蒸氣壓同位素效應 ； 地理資訊系統 ； 大氣擴散 ； Google 地球 ； 驗證

並列摘要

Environmental radiation measurement and model simulation play important roles in the radiation protection of people and environment. This dissertation shows the efforts on the improvements of environmental radiation monitoring and model validation for radiation protection. During the study, this author found some innovative ways for environmental radiation measurement and model validation and display, including designed a new air cooling distillation device for environmental tritiated water monitoring and a mobile environmental survey system (MESS) for managing the works of environmental radiation survey. Both of them have got US patents and domestic patents.
Chapter 1 gives a brief description of the importance of nuclear energy, radiation protection, environmental radiation monitoring and model simulation. Literature reviews for environmental radiation monitoring and model validation are given in Chapter 2. Chapter 3 gives the detailed descriptions of the air cooling distillation device. It can be set up and operated more easily than the traditional devices used for the distillation process. The decontamination factor (DF) value is increased about 20 times by increasing the height of the container from 7 cm to 20 cm. Chapter 4 gives the detailed design of MESS which can real time manage the activity of environmental radiation monitoring according to the worker location and the pre-set specific area and display the latest survey result anywhere by Geographic Information System (GIS). MESS can really improve the efficiency and agility of the environmental survey team. Chapter 5 depicts the functions of the atmosphere dispersion display and evaluation platform (ADDEP) which can display the result of atmospheric dispersion simulation on Google Earth and validate the simulation result by integrating data with web-based interfaces for decision making and model improvement. Finally, chapter 6 is the summary of this thesis.

並列關鍵字

Environmental radiation ； Measurement ； Model ； Tritium ； Distillation ； Decontamination factor ； VPIE ； GIS ； Atmospheric dispersion ； Google Earth ； Validation

參考文獻

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Amiro, B. D., 1997, Special Issue of the Journal of Environmental Radioactivity on Environmental Tritium. Journal of Environmental Radioactivity, 36, 109.

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