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Title: Current Status of the SSRF Project

Abstract

The Shanghai Synchrotron Radiation Facility (SSRF) is designed to be an advanced third generation light source and is now under construction. The SSRF comprises four major parts: a 3.5GeV electron storage ring, a full energy booster, a 150MeV linac, and an array of beamlines ranging from infrared light to hard x-rays. The construction of SSRF started at the end of year 2004, and its accelerator complex has been evolved smoothly towards a cost-effective machine. Construction and commissioning should be completed by the middle of 2009. At that time first seven beamlines, five ID beamlines and two bending magnet beamlines, are anticipated for user operation.

Authors:
; ;  [1]
  1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, P. O. Box 800-204, Shanghai 201800 (China)
Publication Date:
OSTI Identifier:
21052575
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 879; Journal Issue: 1; Conference: 9. international conference on synchrotron radiation instrumentation, Daegu (Korea, Republic of), 28 May - 2 Jun 2006; Other Information: DOI: 10.1063/1.2436004; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BEAM BENDING MAGNETS; BEAM PRODUCTION; CHINESE ORGANIZATIONS; COMMISSIONING; CONSTRUCTION; ELECTRONS; HARD X RADIATION; LIGHT SOURCES; LINEAR ACCELERATORS; MAGNETS; OPERATION; PHOTON BEAMS; STORAGE RINGS; SYNCHROTRON RADIATION; SYNCHROTRONS

Citation Formats

Xu, H. J., Zhao, Z. T., and Ding, H.. Current Status of the SSRF Project. United States: N. p., 2007. Web. doi:10.1063/1.2436004.
Xu, H. J., Zhao, Z. T., & Ding, H.. Current Status of the SSRF Project. United States. doi:10.1063/1.2436004.
Xu, H. J., Zhao, Z. T., and Ding, H.. Fri . "Current Status of the SSRF Project". United States. doi:10.1063/1.2436004.
@article{osti_21052575,
title = {Current Status of the SSRF Project},
author = {Xu, H. J. and Zhao, Z. T. and Ding, H.},
abstractNote = {The Shanghai Synchrotron Radiation Facility (SSRF) is designed to be an advanced third generation light source and is now under construction. The SSRF comprises four major parts: a 3.5GeV electron storage ring, a full energy booster, a 150MeV linac, and an array of beamlines ranging from infrared light to hard x-rays. The construction of SSRF started at the end of year 2004, and its accelerator complex has been evolved smoothly towards a cost-effective machine. Construction and commissioning should be completed by the middle of 2009. At that time first seven beamlines, five ID beamlines and two bending magnet beamlines, are anticipated for user operation.},
doi = {10.1063/1.2436004},
journal = {AIP Conference Proceedings},
number = 1,
volume = 879,
place = {United States},
year = {Fri Jan 19 00:00:00 EST 2007},
month = {Fri Jan 19 00:00:00 EST 2007}
}
  • The Shanghai Synchrotron Radiation Facility (SSRF) is a 3.5-GeV third-generation light source. The facility has been open for user experiments since May, 2009. This high-brightness x-ray source is an ideal platform for x-ray microscopy. Presently, SSRF has three beamlines related to x-ray microscopy or imaging, namely the soft x-ray spectromicroscopy beamline (STXM), the hard x-ray microfocusing beamline, and the x-ray imaging beamline. The construction of SSRF phase-II beamlines will be carried out during 2011-2017. Seven additional beamlines for x-ray microscopy or imaging will be built.
  • A long trace profiler LTP-1200, with a novel f-{theta} system based on phase plate diffraction and a scanning range up to 1200 mm, has been developed at Shanghai Synchrotron Radiation Facility. The central dark line in the diffraction pattern generated by a {pi} phase plate is taken as the positioning benchmark. A magnet levitated linear rail with very high accuracy is used. A granite bench is employed to reduce deformation due to self-gravity of the rail. The focused diffraction pattern is recorded with an area charge-coupled device. The generalized regression neural network algorithm is adopted to improve the beam positioningmore » precision. The static stability of LTP-1200 in 5 h is 0.14 {mu}rad, and the repeatability reaches 0.05 {mu}rad in a common laboratory without any special control of temperature, air turbulence, etc. Calibration tests were carried out with a high precision autocollimator and a standard spherical mirror, respectively. Results show the high performance and reliability of the LTP-1200.« less
  • Shanghai Synchrotron Radiation Facility (SSRF) is an intermediate energy (3.5GeV) light source under construction. Seven beamlines have been chosen and five IDs will be built in the first stage. Two wigglers used for X-ray absorption fine structure (XAFS) and X-ray imaging (XI), two in-vacuums undulators used for macromolecular crystallography (MC) and hard X-ray microfocus (HXM) and one EPU used for scanning transmission X-ray microscopy (STXM) are under design. This paper describes the characteristics and the design parameters of these five IDs in detail.
  • Five IDs will be built for the Shanghai Synchrotron Radiation Facility (SSRF). Two identical mini-gap undulators with the period length 25mm and the minimum gap 6mm will use the in-vacuum technology and can operate in tapered mode. Two wigglers with the period lengths 7.9cm and 14cm and the same minimum gap 14mm will produce the peak fields of 1.2T and 1.94T. A variable polarization undulator of the APPLE-II type with 4.2m long and the period length 10cm can provide linearly, circularly and elliptically polarized radiation in a wide spectral range. This paper describes the magnet designs and the mechanical structuremore » designs of these IDs.« less
  • Two in-vacuum undulators IVU25s and one elliptically polarized undulator EPU100 have been developed for SSRF. Two IVU25s with the same hybrid design contain about 640 Sm{sub 2}Co{sub 17} magnet blocks and the dimension of blocks is 65 Wx25 Hx9 D. The EPU100 of the APPLE-II type contains about 690 NdFeB magnet blocks with the dimension of 35 Wx35 Hx25 D. This paper describes the magnetic measurements of these magnet blocks with the Helmholtz coil measurement system for IVU25 magnet blocks and the Hall probe measurement system for EPU100 magnet blocks. The measured maximum magnetic moment deviation and the maximum anglemore » deviation are less than {+-}1.0% and 1.1 deg. respectively both for Sm{sub 2}Co{sub 17} blocks and NdFeB blocks and satisfy the specifications of undulators.« less