Transverse-emittance measurements on an S-band photocathode RF electron gun

被引：14

作者：

Schmerge, JF ^{[1
]}

Bolton, PR ^{[1
]}

Clendenin, JE ^{[1
]}

Decker, FJ ^{[1
]}

Dowell, DH ^{[1
]}

Gierman, SM ^{[1
]}

Limborg, CG ^{[1
]}

Murphy, BF ^{[1
]}

机构：

[1] SLAC, Menlo Pk, CA 94025 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2002年 / 483卷 / 1-2期

关键词：

photoinjectors; low emittance; free electron lasers;

D O I：

10.1016/S0168-9002(02)00332-7

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Proposed fourth-generation light sources using SASE FELs to generate short pulse, coherent, X-rays require demonstration of high brightness electron sources. The gun test facility at SLAC was built to test high brightness sources for the proposed linac coherent light source at SLAC. The transverse-emittance measurements are made at nearly 30 MeV by measuring the spot size on a YAG screen using the quadrupole scan technique. The emittance was measured to vary from 1 to 3.5 mm mrad as the charge is increased from 50 to 350 pC using a laser pulse width of 2 ps FWHM. The measurements are in good agreement with simulation results using the LANL version of PARMELA. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：301 / 304

页数：4

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