Magnet Design and Measurement Results of the Solenoids and Bunch Compressor Bending Magnets of the SwissFEL Test Facility

被引：2
|
作者：
Negrazus, M. [1 ]
Gabard, A. [1 ]
Sanfilippo, S. [1 ]
Sidorov, S. [1 ]
Vrankovic, V. [1 ]
Kim, Y. J. [2 ]
Ganter, R. [1 ]
Pedrozzi, M. [1 ]
机构：
[1] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
[2] Idaho State Univ, Dept Phys, Idaho Accelerator Ctr, Pocatello, ID 83209 USA
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2012年 / 22卷 / 03期
关键词：
Accelerator magnets; magnetic fields; solenoids;
D O I：
10.1109/TASC.2011.2177794
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The SwissFEL Injector Test Facility at the Paul Scherrer Institute (PAI/Switzerland) started its operation in August 2010. This Facility represents the first stage of the 6 GeV acceleration complex foreseen for the SwissFEL X-Ray coherent light source planned at the PSI. The 250 MeV Injector consists of an S-Band RF photo injector followed by four S-Band acceleration structures of 4 m length each. For fine focusing corrections each accelerating structure is surrounded by four solenoids (WFS) of 0.8 m length and a maximum field of 0.1 T. Each solenoid consists of two coils in one yoke tube. To decrease the bunch length of the electron beam a magnetic bunch compressor chicane with four dipoles (AFBC2) providing a maximum magnetic field of 0.4 T for a length of 0.25 m was build. The central dipoles of the compressor chicane are sited on a movable girder to allow extensive compression studies with dipole angles between 0 degrees and 5 degrees. The preservation of a high brightness and a low emittance for the femto-second electron pulse impose severe tolerances in the field quality and in the magnet positioning. In this paper we review the design of two magnet types and discuss the results of field quality and magnetic axis measurements in terms of the specifications.
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页数：4
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