Growth and characterization of rugged sodium potassium antimonide photocathodes for high brilliance photoinjector

被引：29

作者：

Cultrera, L. ^{[1
]}

Karkare, S. ^{[1
]}

Lillard, B. ^{[1
]}

Bartnik, A. ^{[1
]}

Bazarov, I. ^{[1
]}

Dunham, B. ^{[1
]}

Schaff, W. ^{[1
]}

Smolenski, K. ^{[1
]}

机构：

[1] Cornell Univ, Cornell Lab Accelerator Based Sci & Educ, Ithaca, NY 14853 USA

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 10期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.4820132

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Sodium potassium antimonide photocathodes with Quantum Efficiency (QE) in the range of few percent have been grown, and their photoemission properties are measured. We report the intrinsic emittance and response time of electron bunches extracted from this material. It is possible to recover the QE of an overheated cathode by simple potassium addition, and the cathode is rugged enough to deliver tens of mA of average current with no or minimal degradation. (C) 2013 AIP Publishing LLC.

引用

页数：4

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