A desktop supersonic free-jet beam source for a scanning helium microscope (SHeM)
A simple design for an inexpensive, compact, desktop-sized helium free-jet beam source is described. The apparatus, which is Campargue-like in design and utilizes mostly off-the-shelf parts, is capable of producing a centreline intensity of 1.2 × 10^19 atoms per second per steradian. The beam perfor...
| Main Authors: | , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
IOP Publishing Ltd
2012
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/7979 |
| _version_ | 1848745524806549504 |
|---|---|
| author | Barr, M. O'Donnell, Kane Fahy, A. Allison, W. Dastoor, P. |
| author_facet | Barr, M. O'Donnell, Kane Fahy, A. Allison, W. Dastoor, P. |
| author_sort | Barr, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A simple design for an inexpensive, compact, desktop-sized helium free-jet beam source is described. The apparatus, which is Campargue-like in design and utilizes mostly off-the-shelf parts, is capable of producing a centreline intensity of 1.2 × 10^19 atoms per second per steradian. The beam performance was investigated using a conventional ion gauge and a stagnation detector, with the latter being used to produce beam flux profiles. The profile of the macroskimmed beam has been experimentally demonstrated to be strongly Gaussian. |
| first_indexed | 2025-11-14T06:18:44Z |
| format | Journal Article |
| id | curtin-20.500.11937-7979 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:18:44Z |
| publishDate | 2012 |
| publisher | IOP Publishing Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-79792017-09-13T14:34:29Z A desktop supersonic free-jet beam source for a scanning helium microscope (SHeM) Barr, M. O'Donnell, Kane Fahy, A. Allison, W. Dastoor, P. Campargue SHeM helium atom microscopy helium beam source helium atom scattering A simple design for an inexpensive, compact, desktop-sized helium free-jet beam source is described. The apparatus, which is Campargue-like in design and utilizes mostly off-the-shelf parts, is capable of producing a centreline intensity of 1.2 × 10^19 atoms per second per steradian. The beam performance was investigated using a conventional ion gauge and a stagnation detector, with the latter being used to produce beam flux profiles. The profile of the macroskimmed beam has been experimentally demonstrated to be strongly Gaussian. 2012 Journal Article http://hdl.handle.net/20.500.11937/7979 10.1088/0957-0233/23/10/105901 IOP Publishing Ltd restricted |
| spellingShingle | Campargue SHeM helium atom microscopy helium beam source helium atom scattering Barr, M. O'Donnell, Kane Fahy, A. Allison, W. Dastoor, P. A desktop supersonic free-jet beam source for a scanning helium microscope (SHeM) |
| title | A desktop supersonic free-jet beam source for a scanning helium microscope (SHeM) |
| title_full | A desktop supersonic free-jet beam source for a scanning helium microscope (SHeM) |
| title_fullStr | A desktop supersonic free-jet beam source for a scanning helium microscope (SHeM) |
| title_full_unstemmed | A desktop supersonic free-jet beam source for a scanning helium microscope (SHeM) |
| title_short | A desktop supersonic free-jet beam source for a scanning helium microscope (SHeM) |
| title_sort | desktop supersonic free-jet beam source for a scanning helium microscope (shem) |
| topic | Campargue SHeM helium atom microscopy helium beam source helium atom scattering |
| url | http://hdl.handle.net/20.500.11937/7979 |