• 沒有找到結果。

在本文中為了提升系統的訊雜比我們將磁通轉換線圈的輸入線圈 匝數做最佳化,並有效的將系統的訊雜比提高了 16.2 %。接著我們做 了預極化磁場切換電路的改良,使預極化線圈能提供更高的極化磁場 使樣品極化率提高,藉此提升樣品訊號強度與訊雜比,而我們也成功 的驗證在同樣品下,極化場 1197 高斯與原先系統 684 高斯的訊號訊 雜比上提高了 109 %。在造影成像上我們利用去離子水的樣品之一維 影像頻譜圖與造影結果驗證我們的成像品質在訊雜比上也有明顯的 提升。在成像解析度上我們也利用不同高度水柱來證明我們的系統在 三個維度都能夠達到 2 mm 的解析度。最後隨著本研究的改進,而總 合以上成果都將更有利於未來系統在生物及人體造影上的應用。

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誌謝

我是某某某領域的 Master。

最後感謝我的朋友們,高中死黨在課餘一起休閒放鬆疲倦的心情 並做許多蠻沒意義但卻有趣的事情。還有何梅瑄、詹鈞證你們總可以 陪我一起暫時的逃離實驗,並時時鼓勵彼此繼續往前走繼續進步。最 後謝謝曾經幫助過我但卻沒提到的人。

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