翻訳と辞書 Words near each other ・ Thermal fracturing in glass ・ Thermal grease ・ Thermal grill illusion ・ Thermal Hall effect ・ Thermal Head ・ Thermal history coating ・ Thermal history modelling ・ Thermal history of the Earth ・ Thermal hydraulics ・ Thermal hydrolysis ・ Thermal imaging camera (firefighting) ・ Thermal immersion circulator ・ Thermal infrared spectroscopy ・ Thermal insulation ・ Thermal integrity profiling ・ Thermal ionization ・ Thermal ionization mass spectrometry ・ Thermal keratosis ・ Thermal lag ・ Thermal lance ・ Thermal laser stimulation ・ Thermal loop ・ Thermal low ・ Thermal management ・ Thermal management of electronic devices and systems ・ Thermal management of high-power LEDs ・ Thermal manikin ・ Thermal mass ・ Thermal mass flow meter ・ Thermal mass refrigerator Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Thermal ionization ： ウィキペディア英語版 Thermal ionization Thermal ionization, also known as surface ionization or contact ionization, is a physical process whereby the atoms are desorbed from a hot surface, and in the process are spontaneously ionized. Thermal ionization is used to make simple ion sources, for mass spectrometry and for generating ion beams. ==Physics== The likelihood of ionization is a function of the filament temperature, the work function of the filament substrate and the ionization energy of the element. This is summarised in the Saha-Langmuir equation: :$\backslash frac\; =\; \backslash frac\; \backslash exp\; \backslash Bigg(\backslash frac\backslash Bigg)$ where ::$\backslash frac$ = ratio of ion number density to neutral number density ::$\backslash frac$ = ratio of statistical weights (degeneracy) of ionic (g_+) and neutral (g_0) states ::$e$ = electron charge ::$W$ = work function of surface ::$\backslash Delta\; E\_I$ = ionization energy of desorbed element ::$k$ = Boltzmann's constant ::$T$ = surface temperature Negative ionization can also occur for elements with a large electron affinity $\backslash Delta\; E\_A$ against a surface of low work function. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Thermal ionization」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.