Traceable low-current measurements for a novel ionization gauge suitable as reference standard

Autor: Matthias Bernien, Martin Götz, Claus Illgen, Dietmar Drung, Christian Krause, Thomas Bock, Karl Jousten
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Measurement: Sensors, Vol 18, Iss , Pp 100202- (2021)
Druh dokumentu: article
ISSN: 2665-9174
DOI: 10.1016/j.measen.2021.100202
Popis: A novel ionization gauge was developed where the electron beam is guided through the ionization space in a straight path. This design was chosen in order to develop a more stable ionization vacuum gauge suitable as reference standard in the range of 10−6 Pa to 10−2 Pa. The design requires a low electron current resulting in even lower ion currents. For the purpose of a reference standard, these ultra-low currents in the range 1 pA–100 nA need to be measured in a traceable manner. For the first time, an ultrastable low-noise current amplifier was used for this purpose.
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