Photocathodes: the state of the art and some news

Authors
Boscolo, I Michelato, P
Citation
I. Boscolo et P. Michelato, Photocathodes: the state of the art and some news, NUCL INST A, 445(1-3), 2000, pp. 389-393
Citations number
18
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
445
Issue
1-3
Year of publication
2000
Pages
389 - 393
Database
ISI
SICI code
0168-9002(20000501)445:1-3<389:PTSOTA>2.0.ZU;2-H
Abstract
The present cesium telluride cathodes have the capability to provide, for m onths, trains of picosecond pulses carrying a charge equal/higher than 10 n anocoulomb, for a total charge higher than the microcoulomb. However, they are very delicate. A possible way to increase their robustness is by coveri ng them with a protective film of nanostructured carbon. Ferroelectric cera mics, as possible new robust photocathodes, showed an interesting level of emission with 532 nm-25 ps laser pulses. (C) 2000 Elsevier Science B.V. All rights reserved.