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dc.contributor.authorO'Donnell, Kane
dc.contributor.authorFahy, A.
dc.contributor.authorThomsen, L.
dc.contributor.authorO'Connor, D.
dc.contributor.authorDastoor, P.
dc.identifier.citationO'Donnell, K. and Fahy, A. and Thomsen, L. and O'Connor, D. and Dastoor, P. 2011. Field ionization detectors: a comparative model. Measurement Science and Technology. 22 (1): Article ID 015901.

Recently there has been renewed interest in using field ionization as a method of detecting neutral atomic/molecular species. However, the current–voltage characteristic of a field ionization detector is very difficult to calculate from first principles, making comparison, characterization and monitoring difficult. Here we present a semi-empirical theory designed for macroscopic characterization and comparison of field ionization devices via the current–voltage curve in a similar fashion to the familiar Fowler–Nordheim analysis for field emission devices. The resulting model allows us to monitor the changes in a single field ionization detector, or, more importantly, to make quantitative comparisons between detectors. We demonstrate that this new model accurately reproduces the characteristic field ionization current versus voltage profiles in both low and high field regimes.

dc.publisherIOP Publishing Ltd
dc.subjectmagnetic and optical Instrumentation and measurement
dc.subjectCondensed matter: electrical
dc.titleField ionization detectors: a comparative model
dc.typeJournal Article
dcterms.source.titleMeasurement Science and Technology
curtin.departmentDepartment of Imaging and Applied Physics
curtin.accessStatusFulltext not available

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