本研究使用手提高純鍺偵檢器及製造廠方的軟體，包括幾何分布組成的效率校正法(ISOCS)試圖應用在特殊工作--核能電廠再循環管路輻射增建度量，並因原廠的幾何模擬無法有效的達成現行特殊的校正組合而尋求一般性的模擬軟體MCNP。在實測原廠ISOCS軟體的準確度及模擬尋求MCNP適用性中完成本次研究。使用多種幾何射源，不同屏蔽ISOCS的結果小型射源及簡單屏蔽的準確度可以達到5%左右，但大型射源加上複雜的屏蔽就可能有60%以上的偏差而無法接受。模擬尋求MCNP適用性的結果找出與原效率校正法相同的曲線，稍經調整可達10%的標準。

Using experimental and simulation method we found a general-purpose simulation software MCNP can be used in our special-configuration calibration of efficiency with the same type fitting curve on the measurement of BWR recirculation pipe build-up with the portable HPGe detector during the outage period. The MCNP simulation deviation can be controled under 10% while ISOCS application here isn’t fitted and only the simple type of sources and shielding can reach 5% deviation yet other complicated ones could be as large as around 60% based on our experiment.

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