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l老馬新蟲 (初入文壇)
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[求助]
專業(yè)詞匯
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| bright-field zero-loss energy-filtered 是什么意思? |
捐助貴賓 (著名寫手)
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明場零損能量篩選 這個貌似是指TEM(隧道電子顯微鏡)中的一些技術(shù)? zero-loss是指:All inelastically scattered electron are omitted (reduction of noise). That leads to increased contrast in TEM images (important for specimens with low contrast, e.g. biological specimens) or in diffraction patterns. energy-filtered是指:In the curved magnetic field, electrons with different energies are dispersed. An energy range is selected by a slit located at the dispersion plane. In imaging mode, electrons of the selected energy pass through the lenses of the optical system, and an energy-filtered image occurs at the end of the GIF, where a slow-scan CCD camera is installed for image recording. |

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