Compact Undulator for the Cornell High Energy Synchrotron Source: Design and Beam Test Results

被引：15
|
作者：
Temnykh, A. [1 ]
Dale, D. [1 ]
Fontes, E. [1 ]
Li, Y. [1 ]
Lyndaker, A. [1 ]
Revesz, P. [1 ]
Rice, D. [1 ]
Woll, A. [1 ]
机构：
[1] Cornell Univ, LEPP CHESS Lab, Ithaca, NY 14850 USA
来源：
11TH INTERNATIONAL CONFERENCE ON SYNCHROTRON RADIATION INSTRUMENTATION (SRI 2012) | 2013年 / 425卷
关键词：
D O I：
10.1088/1742-6596/425/3/032004
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We developed, built and beam tested a novel, compact, in-vacuum undulator magnet based on an adjustable phase (AP) scheme. The undulator is 1 m long with a 5mm gap. It has a pure permanent magnet structure with 24.4mm period and 1.1 Tesla maximum peak field. The device consists of two planar magnet arrays mounted on rails inside of a rectangular box-like frame with 156 mm x 146 mm dimensions. The undulator magnet is enclosed in a 273 mm (10.75 '') diameter cylindrical vacuum vessel with a driver mechanism placed outside. In May 2012 the CHESS Compact Undulator (CCU) was installed in Cornell Electron Storage Ring and beam tested. During four weeks of dedicated run we evaluated undulator radiation properties as well as magnetic, mechanical and vacuum properties of the undulator magnet. We also studied the effect of the CCU on storage ring beam. The spectral characteristics and intensity of radiation were found to be in very good agreement with expected. The magnet demonstrated reproducibility of undulator parameter K at 1.4 x 10(-4) level. It was also found that the undulator K parameter change does not affect electron beam orbit and betatron tunes.
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页数：5
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