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Rev Sci Instrum. 2019 Jul;90(7):075115. doi: 10.1063/1.5093988.

Three dimensional tracing of a charged particle by electrostatic detection.

The Review of scientific instruments

Erdem Genc, Andre Mölleken, Doris Tarasevitch, Detlef Utzat, Hermann Nienhaus, Rolf Möller

Affiliations

  1. Faculty of Physics and Center for Nanointegration Duisburg-Essen CENIDE, University of Duisburg-Essen, Lotharstraße 1, 47057 Duisburg, Germany.

PMID: 31370485 DOI: 10.1063/1.5093988

Abstract

Using a configuration of electrodes connected to charge sensitive amplifiers, the position of a charged particle in free space can be determined in all three dimensions. In our experiment, spheres with a diameter of a millimeter and a charge of about 0.1 pC are traced while they are bouncing at a surface. A spatial resolution of about 0.5 mm combined with a temporal resolution better than 10 µs is achieved. Moreover, the transfer of electric charges when touching a surface can be evaluated.

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