Calculation of electric field strengths at a sharp edge
Sharp edges were first used for field ionisation mass spectrometry by Beckey. Although Cross and Robertson found that etched metal foils were more effective than razor blades for field ionisation, blades are very convenient for determination of field ionisation mass spectra, as reported by Robertson...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Published: |
Elsevier
1968
|
| Subjects: | |
| Online Access: | https://eprints.nottingham.ac.uk/160/ |
| _version_ | 1848790351657041920 |
|---|---|
| author | Brailsford, David F. Robertson, Andrew J. B. |
| author_facet | Brailsford, David F. Robertson, Andrew J. B. |
| author_sort | Brailsford, David F. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Sharp edges were first used for field ionisation mass spectrometry by Beckey. Although Cross and Robertson found that etched metal foils were more effective than razor blades for field ionisation, blades are very convenient for determination of field ionisation mass spectra, as reported by Robertson and Viney. The electric field at the vertex of a sharp edge can be calculated by the method of the conformal transformation. Here we give some equations for the field deduced with the assumption that the edge surface can be approximated by a hyperbola. We also compare two hyperbolae with radii of curvature at the vertex of 500 Angstrom and 1000 Angstrom with the profile of a commercial carbon-steel razor blade. |
| first_indexed | 2025-11-14T18:11:14Z |
| format | Article |
| id | nottingham-160 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T18:11:14Z |
| publishDate | 1968 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-1602020-05-04T20:34:24Z https://eprints.nottingham.ac.uk/160/ Calculation of electric field strengths at a sharp edge Brailsford, David F. Robertson, Andrew J. B. Sharp edges were first used for field ionisation mass spectrometry by Beckey. Although Cross and Robertson found that etched metal foils were more effective than razor blades for field ionisation, blades are very convenient for determination of field ionisation mass spectra, as reported by Robertson and Viney. The electric field at the vertex of a sharp edge can be calculated by the method of the conformal transformation. Here we give some equations for the field deduced with the assumption that the edge surface can be approximated by a hyperbola. We also compare two hyperbolae with radii of curvature at the vertex of 500 Angstrom and 1000 Angstrom with the profile of a commercial carbon-steel razor blade. Elsevier 1968 Article PeerReviewed Brailsford, David F. and Robertson, Andrew J. B. (1968) Calculation of electric field strengths at a sharp edge. International Journal of Mass Spectrometry and Ion Physics, 1 . pp. 75-85. Field ionization conformal transformations mass spectrometry electric fields razor blades |
| spellingShingle | Field ionization conformal transformations mass spectrometry electric fields razor blades Brailsford, David F. Robertson, Andrew J. B. Calculation of electric field strengths at a sharp edge |
| title | Calculation of electric field strengths at a sharp edge |
| title_full | Calculation of electric field strengths at a sharp edge |
| title_fullStr | Calculation of electric field strengths at a sharp edge |
| title_full_unstemmed | Calculation of electric field strengths at a sharp edge |
| title_short | Calculation of electric field strengths at a sharp edge |
| title_sort | calculation of electric field strengths at a sharp edge |
| topic | Field ionization conformal transformations mass spectrometry electric fields razor blades |
| url | https://eprints.nottingham.ac.uk/160/ |