A retarding potential field electron emission spectrometer

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Abstract
The instrument has a high sensitivity and a resolution of 25 meV. It is also shown that the range of analysed energy is about 1.5 eV. A further improvement of this instrument is still possible. To make sure that the interpretation of results is correct, calibration measurements were performed and compared with the theoretical electron energy distribution. High-emitting regions of a tungsten emitter with well known emission properties were used for calibration of the spectrometer.

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