A DC and second derivative Langmuir probe measuring system

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, , Citation S L F Richards et al 1972 J. Phys. E: Sci. Instrum. 5 595 DOI 10.1088/0022-3735/5/6/034

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1 Univ. Bath., UK

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0022-3735/5/6/595

Abstract

A phase-sensitive detection system is described in detail for measuring electron-energy distributions using conventional Langmuir probes. A switching circuit is also discussed which enables the system to measure the DC characteristics. A typical result is presented and modifications are suggested to enable probe characteristics to be rapidly determined.

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10.1088/0022-3735/5/6/034