Extended lifetime dual indirectly-heated cathode ion source
An ion source has an arc chamber with a first end and a second end. A first cathode at the first end of the arc chamber has a first cathode body and a first filament disposed within the first cathode body. A second cathode at the second end of the arc chamber has a second cathode body and a second f...
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| Main Authors | , , |
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| Format | Patent |
| Language | English |
| Published |
24.10.2023
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| Subjects | |
| Online Access | Get full text |
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| Abstract | An ion source has an arc chamber with a first end and a second end. A first cathode at the first end of the arc chamber has a first cathode body and a first filament disposed within the first cathode body. A second cathode at the second end of the arc chamber has a second cathode body and a second filament disposed within the second cathode body. A filament switch selectively electrically couples a filament power supply to each of the first filament and the second filament, respectively, based on a position of the filament switch. A controller controls the position of the filament switch to alternate the electrical coupling of the filament power supply between the first filament and the second filament for a plurality of switching cycles based on predetermined criteria. The predetermined criteria can be a duration of operation of the first filament and second filament. |
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| AbstractList | An ion source has an arc chamber with a first end and a second end. A first cathode at the first end of the arc chamber has a first cathode body and a first filament disposed within the first cathode body. A second cathode at the second end of the arc chamber has a second cathode body and a second filament disposed within the second cathode body. A filament switch selectively electrically couples a filament power supply to each of the first filament and the second filament, respectively, based on a position of the filament switch. A controller controls the position of the filament switch to alternate the electrical coupling of the filament power supply between the first filament and the second filament for a plurality of switching cycles based on predetermined criteria. The predetermined criteria can be a duration of operation of the first filament and second filament. |
| Author | David, Jonathan Platow, Wilhelm Bassom, Neil |
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| Notes | Application Number: US202117491084 |
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| Snippet | An ion source has an arc chamber with a first end and a second end. A first cathode at the first end of the arc chamber has a first cathode body and a first... |
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| SubjectTerms | BASIC ELECTRIC ELEMENTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY |
| Title | Extended lifetime dual indirectly-heated cathode ion source |
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