A two-frequency RF photocathode gun

被引：12

作者：

Dowell, DH

Ferrario, M

Kimura, T

Lewellen, J

Limborg, C

Raimondi, P

Schmerge, JF

Serafini, L

Smith, T

Young, L

机构：

[1] Stanford Linear Accelerator Ctr, Menlo Pk, CA 94025 USA

[2] INFN Franscati, I-00040 Monte Porzio Catone, Italy

[3] Stanford Univ, Hansen Labs, Stanford, CA 94305 USA

[4] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

[5] INFN Milan LASA, I-20090 Segrate, MI, Italy

[6] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2004年 / 528卷 / 1-2期

关键词：

electron beam; photocathode RF gun; RF harmonics; emittance;

D O I：

10.1016/j.nima.2004.04.078

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

in this paper we resurrect an idea originally proposed by Serafini (Nucl. Instr. and Meth. A 318 (1992) 301) in 1992 for an RF photocathode gun capable of operating simultaneously at the fundamental frequency and a higher frequency harmonic. Driving the gun at two frequencies with the proper field ratio and relative phase produces a beam with essentially no RF emittance and a linear longitudinal phase space distribution. Such a gun allows a completely new range of operating parameters for controlling space charge emittance growth. In addition, the linear longitudinal phase space distribution aids in bunch compression. This paper will compare results of simulations for the two-frequency gun with the standard RF gun and the unique properties of the two-frequency gun will be discussed. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：316 / 320

页数：5

共 4 条

[1] NEUTRALIZATION OF THE EMITTANCE BLOWUP INDUCED BY RF TIME-DEPENDENT FORCES IN RF GUNS [J].