Title:
UNDULATOR
Document Type and Number:
WIPO Patent Application WO/2016/078547
Kind Code:
A1
Abstract:
An undulator, the undulator at least comprising: M permanent magnet cycles arranged in sequence in an electron beam transmission direction, each of the permanent magnet cycles comprising four rows of permanent magnet structures (100, 200, 300, 400), each row of the permanent magnet structures (100, 200, 300, 400) comprising N rows of permanent magnet groups, each row of the permanent magnet groups comprising K permanent magnet units, where M, N and K are all natural numbers which are greater than or equal to 1; and the four rows of the permanent magnet structures (100, 200, 300, 400) are pairwise paired up and then are oppositely arranged at both sides of the electron beam transmission direction, and can form at least one composite magnetic field through relative displacement, so as to enable electron beams to generate elliptically polarized light, circularly polarized light or linearly polarized light in any polarization angle direction of 0-360° when passing through the composite magnetic fields, and enable the electron velocity direction to deviate from the axial direction of the undulator. The undulator can not only generate linearly polarized light, but can also generate elliptically and circularly polarized light, and can allow the electron velocity direction to never be in the axial direction of the undulator, thereby greatly reducing the thermal load of the light beam lines of synchrotron radiation.
Inventors:
QIAO SHAN (CN)
CHANG RUI (CN)
JI FUHAO (CN)
YE MAO (CN)
CHANG RUI (CN)
JI FUHAO (CN)
YE MAO (CN)
Application Number:
PCT/CN2015/094570
Publication Date:
May 26, 2016
Filing Date:
November 13, 2015
Export Citation:
Assignee:
SHANGHAI INST MICROSYS & INF (CN)
International Classes:
G21K1/00; H01F7/02
Foreign References:
| CN104409129A | 2015-03-11 |
Other References:
ZHU, YA ET AL.: "Mechanical Design and Analysis on The Magnetic Structure of An Novel Permanent Magnet Undulator in SSRF", NUCLEAR TECHNIQUES, vol. 38, no. 3, 31 March 2015 (2015-03-31), pages 030103 - 1 , 030103-2, 030102-3, 030103-4 and 030102-5
SASAKI, S. ET AL.: "Design Study of Knot-Apple Undulator for Pes-Beamline at SSRF", PROCEEDINGS OF PAC2013, PASADENA, CAUSA, 30 June 2014 (2014-06-30), pages 1043 - 1045
MARKS, S. ET AL.: "The Advanced Light Source Elliptically Polarizing Undulator", vol. 3, 31 December 1998 (1998-12-31), pages 3221 - 3223
LU , JIE ET AL.: "Field Integral Shimming of Elliptically Polarized Undulator at Shanghai Synchrotron Radiation Facility", HIGH POWER LASER AND PARTICLE BEAMS, vol. 21, no. 10, 31 October 2009 (2009-10-31), pages 1597 - 1600
HE, JUNYONG ET AL.: "Analysis and Calculation of Backing Beam for EPU100 at SSRF", NUCLEAR TECHNIQUES, vol. 32, no. 8, 31 August 2009 (2009-08-31), pages 572 - 575
SASAKI, S. ET AL.: "Design Study of Knot-Apple Undulator for Pes-Beamline at SSRF", PROCEEDINGS OF PAC2013, PASADENA, CAUSA, 30 June 2014 (2014-06-30), pages 1043 - 1045
MARKS, S. ET AL.: "The Advanced Light Source Elliptically Polarizing Undulator", vol. 3, 31 December 1998 (1998-12-31), pages 3221 - 3223
LU , JIE ET AL.: "Field Integral Shimming of Elliptically Polarized Undulator at Shanghai Synchrotron Radiation Facility", HIGH POWER LASER AND PARTICLE BEAMS, vol. 21, no. 10, 31 October 2009 (2009-10-31), pages 1597 - 1600
HE, JUNYONG ET AL.: "Analysis and Calculation of Backing Beam for EPU100 at SSRF", NUCLEAR TECHNIQUES, vol. 32, no. 8, 31 August 2009 (2009-08-31), pages 572 - 575
Attorney, Agent or Firm:
J.Z.M.C. PATENT AND TRADEMARK LAW OFFICE (CN)
上海光华专利事务所 (CN)
上海光华专利事务所 (CN)
Download PDF:
Previous Patent: ALZHEIMER'S DISEASE (AD) PREVENTIVE DRUG
Next Patent: ROCKING PLATFORM FOR BIOREACTOR
Next Patent: ROCKING PLATFORM FOR BIOREACTOR