Introduction to Analytical Electron Microscopy
暫譯: 分析電子顯微鏡導論

Hren, John

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The birth of analytical electron microscopy (AEM) is somewhat obscure. Was it the recognition of the power and the development of STEM that signaled its birth? Was AEM born with the attachment of a crystal spectrometer to an otherwise conventional TEM? Or was it born earlier with the first analysis of electron loss spectra? It's not likely that any of these developments alone would have been sufficient and there have been many others (microdiffraction, EDS, microbeam fabrication, etc.) that could equally lay claim to being critical to the establishment of true AEM. It is probably more accurate to simply ascribe the present rapid development to the obvious: a combination of ideas whose time has come. Perhaps it is difficult to trace the birth of AEM simply because it remains a point of contention to even define its true scope. For example, the topics in this book, even though very broad, are still far from a complete description of what many call AEM. When electron beams interact with a solid it is well-known that a bewildering number of possible interactions follow. Analytical electron microscopy attempts to take full qualitative and quantitative advantage of as many of these interactions as possible while still preserving the capability of high resolution imaging. Although we restrict ourselves here to electron transparent films, much of what is described applies to thick specimens as well. Not surprisingly, signals from all possible interactions cannot yet (and probably never will) be attained simultaneously under optimum conditions.

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分析電子顯微鏡(AEM)的誕生有些模糊。是對 STEM 的強大能力和發展的認識標誌著它的誕生嗎?還是 AEM 是在將晶體光譜儀附加到傳統 TEM 上時誕生的?或者它在首次分析電子損失光譜時就已經誕生了?這些發展中的任何一項單獨來看都不太可能足夠,還有許多其他技術(如微衍射、EDS、微束製造等)同樣可以聲稱對真正的 AEM 的建立至關重要。或許更準確的說法是,當前的快速發展歸因於顯而易見的事實:一系列時機成熟的想法的結合。也許追溯 AEM 的誕生是困難的,因為即使定義其真正範疇仍然存在爭議。例如,本書中的主題雖然非常廣泛,但仍遠未完整描述許多人所稱的 AEM。當電子束與固體相互作用時,眾多可能的相互作用隨之而來是眾所周知的。分析電子顯微鏡試圖充分利用這些相互作用的定性和定量優勢,同時仍保留高解析度成像的能力。雖然我們在此限制於電子透明薄膜,但所描述的許多內容同樣適用於厚樣本。不足為奇的是,所有可能相互作用的信號在最佳條件下尚無法(而且可能永遠無法)同時獲得。