THE HIGH-FIELD ENHANCEMENT OF PHOTOEMISSION FROM NA2KSB PHOTOCATHODES

Authors
LIU YW ZHANG GM XUE ZQ WU JL WU QD
Citation
Yw. Liu et al., THE HIGH-FIELD ENHANCEMENT OF PHOTOEMISSION FROM NA2KSB PHOTOCATHODES, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 376(1), 1996, pp. 146-147
Citations number
9
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
376
Issue
1
Year of publication
1996
Pages
146 - 147
Database
ISI
SICI code
0168-9002(1996)376:1<146:THEOPF>2.0.ZU;2-R
Abstract
We measured the enhancement of photoemission by the application of a h igh electric field to the surface of Na2KSb photocathodes which were s timulated by ultrashort laser pulses (wavelength 1.06 mu m or 0.53 mu m, pulse duration 50 ps). The gain in photoyield exceeded 5 at a field of 2.7 x 10(7) V/m, and there were steps in the curve of the gain in photoyield versus the applied electric field.