Photocathodes: the state of the art and some news

被引：18

作者：

Boscolo, I

Michelato, P

机构：

[1] Univ Milan, Dept Phys, I-20133 Milan, Italy

[2] Univ Milan, Ist Nazl Fis Nucl, I-20133 Milan, Italy

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2000年 / 445卷 / 1-3期

关键词：

photocathode; alkali; protective film; ceramic; auger; laser;

D O I：

10.1016/S0168-9002(00)00089-9

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The present cesium telluride cathodes have the capability to provide, for months, trains of picosecond pulses carrying a charge equal/higher than 10 nanocoulomb, for a total charge higher than the microcoulomb. However, they are very delicate. A possible way to increase their robustness is by covering them with a protective film of nanostructured carbon. Ferroelectric ceramics, 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.

引用

页码：389 / 393

页数：5

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