硼中子捕獲治療係利用含硼藥物與熱中子之高捕獲截面特性，藉由核反應中所放出之重荷電粒子，以其短射程、高線性能量轉移等特性，局部性的殺死腫瘤細胞並同時降低對周圍正常細胞的傷害，藉此達到治療目的。因此，硼中子捕獲治療之效果與品質，主要取決於兩個重要因素：含硼藥物以及中子束。對於中子束之特性研究，一般常利用中子活化偵檢器來進行，但由於其體積較小，故對於大範圍之二維分佈量測將較為不易。
　　本研究引入間接中子造影方法，以中子活化原理為基礎，配合轉換材及影像數位板之使用，對清華水池式反應器硼中子捕獲治療射束內之中子二維分佈進行量測。本研究共分為兩個階段：首先針對影像數位板之基本特性作驗證，以確保影像數位板在使用上之穩定性及可靠度；第二階段為利用間接中子造影方法進行量測，可分別獲得於射束出口、距離射束出口10公分及20公分處之中子二維相對強度分佈，最後亦將量測之結果與模擬計算結果作比較，並試圖解釋其差異之可能性。
　　由目前之實驗結果顯示，間接中子造影方法可快速且穩定的使用於硼中子捕獲治療射束之中子二維分佈量測，且在謹慎、仔細的執行之下，其數據亦值得信賴。

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