inflate
发表于 2025-3-25 05:17:22
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熟练
发表于 2025-3-25 09:08:14
UHV Basics molecules exert upon the surface. By knowing the pressure the flux can be evaluated. From the kinetic theory of gases the molecular flux . is given by the Herz-Knudsen equation: . where . is the number of molecules per unit volume and . is the average speed of the molecules. For a gas of mole
蔑视
发表于 2025-3-25 12:33:07
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Cryptic
发表于 2025-3-25 17:25:02
Rutherford Backscattering Spectrometry and Nuclear Reaction Analysiselemental composition and/or structure, namely the depth profiles from the surface region spanning the first few hundred layers of atoms to up to 10 .m depth. Beyond this, complications due to straggling effects result in loss of sensitivity and/or of depth resolution. At very low energies, the effe
恶臭
发表于 2025-3-25 20:13:40
Low Energy Ion Scattering the basic elements of LEIS were established and these have been built on over the past 20 years to develop into a powerful surface atomic layer structure and composition probe. It has been successfully applied to a wide range of practical surface problems which include the surface composition analy
Offset
发表于 2025-3-26 04:06:16
Reflection High Energy Electron Diffractiony displaced RHEED as a diffraction technique for clean single crystal surfaces. The main reasons for this neglect was that RHEED gives quantitative results only on extremely flat surfaces which were not easily prepared and offered no theoretical advantages over LEED in the central surface science qu
ear-canal
发表于 2025-3-26 06:26:46
Spin Polarized Electron Techniquesriented scientists will see spin polarized electron techniques as a way of measuring exchange and spin-orbit phenomena, giving them the tools to study magnetization in ultrathin films and even on an element-specific basis. Such studies form the basis on which the latest techniques in atomic engineer
食品室
发表于 2025-3-26 08:27:07
Textbook 19921st editionbook should be prepared for four major groups of readers: - senior undergraduate students in chemistry, physics, metallurgy, materials science and materials engineering; - postgraduate students undertaking research that involves the use of analytical techniques; - groups of scientists and engineers
Musket
发表于 2025-3-26 15:45:31
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粗鲁的人
发表于 2025-3-26 17:55:45
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