Field ionization detectors: a comparative model
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 monit...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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IOP Publishing Ltd
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/24842 |
| _version_ | 1848751541070069760 |
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| author | O'Donnell, Kane Fahy, A. Thomsen, L. O'Connor, D. Dastoor, P. |
| author_facet | O'Donnell, Kane Fahy, A. Thomsen, L. O'Connor, D. Dastoor, P. |
| author_sort | O'Donnell, Kane |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T07:54:22Z |
| format | Journal Article |
| id | curtin-20.500.11937-24842 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:54:22Z |
| publishDate | 2011 |
| publisher | IOP Publishing Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-248422017-09-13T15:11:17Z Field ionization detectors: a comparative model O'Donnell, Kane Fahy, A. Thomsen, L. O'Connor, D. Dastoor, P. magnetic and optical Instrumentation and measurement Condensed matter: electrical 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. 2011 Journal Article http://hdl.handle.net/20.500.11937/24842 10.1088/0957-0233/22/1/015901 IOP Publishing Ltd restricted |
| spellingShingle | magnetic and optical Instrumentation and measurement Condensed matter: electrical O'Donnell, Kane Fahy, A. Thomsen, L. O'Connor, D. Dastoor, P. Field ionization detectors: a comparative model |
| title | Field ionization detectors: a comparative model |
| title_full | Field ionization detectors: a comparative model |
| title_fullStr | Field ionization detectors: a comparative model |
| title_full_unstemmed | Field ionization detectors: a comparative model |
| title_short | Field ionization detectors: a comparative model |
| title_sort | field ionization detectors: a comparative model |
| topic | magnetic and optical Instrumentation and measurement Condensed matter: electrical |
| url | http://hdl.handle.net/20.500.11937/24842 |