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http://hdl.handle.net/11375/18606
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DC Field | Value | Language |
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dc.contributor.advisor | Robinson, J. E. | - |
dc.contributor.author | Karapetsas, Spyridon | - |
dc.date.accessioned | 2015-11-24T18:53:28Z | - |
dc.date.available | 2015-11-24T18:53:28Z | - |
dc.date.issued | 1982-02 | - |
dc.identifier.uri | http://hdl.handle.net/11375/18606 | - |
dc.description.abstract | <p> The interaction mechanisms of an ion beam with a solid target are identified. Basic parameters associated with ion scattering, charge neutralization, inelastic energy losses and secondary ion production are described. Low energy (1-20 kev) experimental studies on these topics are reviewed. A low energy ion mass spectrometer is described. The ion beam is generated by an existing kev ion accelerator and is directed to a newly constructed UHV target chamer. The energy and angular distributions of the backscattered particles are measured with a hemispherical electrostatic analyser and a channeltron detector. A high precision goniometer allows target rotation about two perpendicular axes by angles of 180° and 90° with an accuracy and repeatability of 0.1°. The interaction chamber is bakeable to 250°c and was designed for an ultimate pressure of 10^-11 torr. The data acquisition system chamber scans the energy spectrum automatically so that the radiation dosage at the target is equalized for all channels. </p> | en_US |
dc.language.iso | en | en_US |
dc.subject | low energy | en_US |
dc.subject | ion mass spectrometer | en_US |
dc.subject | ion scattering | en_US |
dc.subject | charge neutralization | en_US |
dc.subject | ion accelerator | en_US |
dc.subject | goniometer | en_US |
dc.title | Development of a Low Energy Ion Mass Spectrometer | en_US |
dc.contributor.department | Engineering Physics | en_US |
dc.description.degreetype | Thesis | en_US |
dc.description.degree | Master of Engineering (MEngr) | en_US |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Description | Size | Format | |
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Karapetsas_Spyridon_1982_Masters.pdf | 7.09 MB | Adobe PDF | View/Open |
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