Development of Cs2Te photocathode rf gun system for compact THz SASE-FEL

被引：17

作者：

Kuroda, R. ^{[1
]}

Ogawa, H. ^{[1
]}

Sei, N. ^{[1
]}

Toyokawa, H. ^{[1
]}

Yagi-Watanabe, K. ^{[1
]}

Yasumoto, M. ^{[1
]}

Koike, M. ^{[1
]}

Yamada, K. ^{[1
]}

Yanagida, T. ^{[2
]}

Nakajyo, T. ^{[2
]}

Sakai, F. ^{[2
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Inst Instrumentat Frontier, Tsukuba, Ibaraki 3058568, Japan

[2] Sumitomo Heavy Ind Ltd, Nishitokyo, Tokyo 1888585, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2008年 / 593卷 / 1-2期

关键词：

D O I：

10.1016/j.nima.2008.04.066

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A compact terahertz (THz) SASE-FEL source has been developed with a compact S-band electron linac at AIST. The S-band linac has been improved using a Cs2Te photocathode rf gun with a compact load-lock system. The 40 MeV electron beam which has a bunch charge of more than 2 nC/bunch was stably generated using our system with the Cs2Te photocathode, and the quantum efficiency (QE) typically achieved was about 0.3%. The surface observation of the Cs2Te photocathode to obtain the surface micrographs and QE mapping images was successfully performed with a photoelectron emission microscopy (PEEM). (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：91 / 93

页数：3

共 6 条

[1] Terahertz-wave sources and imaging applications [J].

Dobroiu, Adrian ;

Otani, Chiko ;

Kawase, Kodo .

MEASUREMENT SCIENCE AND TECHNOLOGY, 2006, 17 (11) :R161-R174

[2] Injector study for compact hard X-ray source via laser Compton scattering [J].

Kuroda, Ryunosuke ;

Toyokawa, Hiroyuki ;

Sei, Norihiro ;

Yasumoto, Masato ;

Ogawa, Hiroshi ;

Koike, Masaki ;

Yamada, Kawakatsu ;

Nakajyoo, Terunobu ;

Saka, Fumio ;

Yanagida, Tatsuya .

INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2007, 21 (3-4) :488-496

[3] PHOTOEMISSION STUDIES OF CESIUM TELLURIDE [J].

POWELL, RA ;

SPICER, WE ;

FISHER, GB ;

GREGORY, P .

PHYSICAL REVIEW B, 1973, 8 (08) :3987-3995

[4]

SEI N, 2006, P 3 ANN M PART ACC S, P705

[5] First operation of cesium telluride photocathodes in the TTF injector RF gun [J].

Sertore, D ;

Schreiber, S ;

Floettmann, K ;

Stephan, F ;

Zapfe, K ;

Michelato, P .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2000, 445 (1-3) :422-426

[6]

Yasumoto M, 2004, P 26 FREE EL LAS C A, P311

← 1 →