ION SOURCE
An ion source is presented capable of producing ions of elements which vaporize only at exceedingly high temperatures, i.e.,--1500 degrees to 3000 deg C. The ion source utilizes beams of electrons focused into a first chamber housing the material to be ionized to heat the material and thereby cause it to vaporize. An adjacent second chamber receives the vaporized material through an interconnecting passage, and ionization of the vaporized material occurs in this chamber. The ionization action is produced by an arc discharge sustained between a second clectron emitting filament and the walls of the chamber which are at different potentials. The resultant ionized material egresses from a passageway in the second chamber. Using this device, materials which in the past could not be processed in mass spectometers may be satisfactorily ionized for such applications.
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-12-007047
- Assignee:
- U.S. Atomic Energy Commission
- Patent Number(s):
- US 2821662
- OSTI ID:
- 4304841
- Country of Publication:
- United States
- Language:
- English
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Dual filament ion source with improved beam characteristics
ION SOURCE