狗窝
发表于 2025-3-23 12:56:39
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corporate
发表于 2025-3-23 15:50:00
https://doi.org/10.1007/0-306-47637-1arrangements to properties. Ball models of the atoms in crystals have become part of almost every laboratory in the last sixty years. Most of our knowledge concerning atomic arrangements comes from diffraction — simply because any diffraction grating expresses itself in its diffraction pattern; this
cornucopia
发表于 2025-3-23 19:40:13
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歌曲
发表于 2025-3-24 01:36:38
Malka Gorodetsky,Shoshana Keinyude as the period. As we now know from diffraction studies, these spacings are of the order of 1 Å (10. m) for atoms in solids, thus we wish to study the properties of radiation in this wavelength range. We shall confine our attention to the most commonly used radiations: x-rays, neutrons, and elect
空气
发表于 2025-3-24 03:27:27
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尽管
发表于 2025-3-24 10:24:43
https://doi.org/10.1057/978-1-137-52561-1elation between these external manifestations of regularity in solids and the internal regularity of atomic arrangements, but we deferred any detailed discussion of that topic until now. While we noted that in principle all .-fold rotational axes could occur, we said that only 1-, 2-, 3-, 4-, and 6-
陶瓷
发表于 2025-3-24 12:47:08
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Sarcoma
发表于 2025-3-24 18:34:51
Reconsidering Identity Economicseave the crystal without rescattering. Consider a small crystal in the shape of a cube, 10. m on an edge, entirely bathed by an x-ray beam. The peak intensity from such a crystal can be written as follows, for unpolarized radiation and receiving slits of dimensions . × . (see Sect. 4.9).
一窝小鸟
发表于 2025-3-24 19:12:33
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冬眠
发表于 2025-3-25 00:06:01
Recording the Diffraction Pattern,ined from powder or polycrystalline samples. In all of these records of the diffraction pattern, we must choose a beam of radiation with one wavelength or many wavelengths and a sample and detector orientation such that we satisfy the conditions for diffraction.