Current/voltage transformer for the detection of the electron current in a scanning tunnelling-electron microscope
作者： Krzysztof Szot , Jörg Herion , Ralph Otto
DOI:
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摘要: Described is a current/voltage transformer for the detection of small, transient currents, having reaction resistance disposed in path current being measured. In order to compensate parasitic capacitances and increase transmission frequency, has an equipotential screen surrounding it so that electrically insulated. The protected from electrical interference fields byu floating screening (11). flowing between tip probe specimen surface scanning tunnelling-electron microscope, electron-current path. electrometer amplifier (8) connected series with fast low-impedance operational (14), output (9) (11) round (3). (4) provided (5).
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