Steric control of molecular beam induced surface reactions and its ultra-high speed and high energy resolution photoemission spectroscopic analysis

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A continuous expansion type supersonic molecular beam source and related devices were fabricated to overwhelm insufficient beam flux density. Ion current of a high speed atomic and molecular (ion) beam apparatus was enhanced by reconstruction of the plasma ion source. High speed measurements of photoemission spectra were improved by replacing a measurement system to new one which is corresponding to a 5 channels detector. Various kinds of surface reaction mechanisms of many molecular beam induced surface reactions were clarified by high speed photoemission spectroscopy using newly developed experimental devices.