Simple laser-driven, metal-photocathode electron source
Journal Article
·
· Appl. Phys. Lett.; (United States)
An ArF excimer laser was used to produce photoelectrons from common metal surfaces at modest vacuum. The photoelectrons are subsequently accelerated across an anode-cathode gap. Both space-charge and emission-limited flow were examined. The temporal characteristics of the emission-limited electron beam produced by this device are nearly identical to those of the laser pulse used to produce the photoemission. In the space-charge-limited case, a rise time of 3 ns was obtained. Maximum current densities of 70 A/cm/sup 2/ were achieved.
- Research Organization:
- Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545
- OSTI ID:
- 5283733
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 49:15; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
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