Plasma production via laser‐induced photoemission (abstract)

Autor:	Ka-Ngo Leung, A. T. Young, D. S. Pickard, W. B. Kunkel
Rok vydání:	1996
Předmět:	Materials science Excimer laser Pulse (signal processing) medicine.medical_treatment chemistry.chemical_element Barium Plasma Laser Photocathode Cathode law.invention chemistry law medicine Atomic physics Instrumentation Voltage
Zdroj:	Review of Scientific Instruments. 67:1340-1340
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1147244
Popis:	The feasibility of laser‐induced photoemission as a driving mechanism for short plasma pulse production is currently being investigated with a pulsed excimer laser at 248 nm. Low work function materials such as LaB6 and barium are used as cathode materials and the resulting plasma characteristics are being examined. Results from early measurements of the barium photocathode show a strong dependence of the photoemitted current on the source pressure and cathode voltage. Additionally, the temporal behavior of the emitted electron pulse is found to consist of two components: a short 50 ns burst corresponding to laser‐induced photoemission, and a larger, longer 100 ns pulse increasing from the tail end of the photoemitted electron pulse.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6c69aa3d2933aca8db498a0ff1bddefc https://doi.org/10.1063/1.1147244 Zobrazit plný text záznamu