China Spallation Neutron Source A1-426                           

Institute of High Energy Physics,                                           PH: 0769-89156437

Chinese Academy of Sciences                                         CELL: +8613352982646

Dongguan, Guangdong, PR China

Research Areas

Polarized neutron technology and equipment development, polarized helium three technology, neutron physics, neutron imaging, etc.


Ph.D. Physics, Department of Physics and Astronomy, Indiana University, Bloomington, Indiana, US, May 2008

Thesis title: “Development of neutron polarizer based on polarized 3He and application in polarized neutron diffractometry.”

Advisor: Prof. William M. Snow


B.S. Physics, Department of Modern Physics, University of Science and Technology of China (USTC), Hefei, China, May 2002


Work Experience

Sept. 2018 - present, Head of Sample Environment Group and Polarized Neutron Group, China Spallation Neutron Source, Institute of High Energy Physics, China


July 2008 - Aug. 2018, Lead Polarization Scientist, Spallation Neutron Source, Oak Ridge National Laboratory, United States



Academic papers


35. “Magnetic structure of ternary rare-earth alloy Ho1/3Tb1/3Er1/3”, D. Pajerowski, K.
Ostrowski, C. D. L. Cruz, X. Tong
, Y. Yuan, Y. Wu, Z. P. Lu, Journal of Magnetism
and Magnetic Materials, 469, 315 (2019)


34. “Simultaneous neutron radiography of metal nozzle geometry and near-field spray”
C. Smith, M. Gragston, Z. L. Zhang, T. Ombrello, C. Carter, X. Tong, L.
Santodonato, H. Bilheux, Journal of Propulsion and Power, 35, 419 (2019)


33. “Nanoscale precipitation and its influence on strengthening mechanisms in an ultrahigh strength low-carbon steel”, S. S. Xu, Y. Zhao, D. Chen, L. W. Sun, L. Chen, X.Tong, C. T. Liu, Z. W. Zhang, International Journal of Plasticity, 113, 99 (2019)


32.  “First observation of P-odd γ asymmetry in polarized neutron capture on hydrogen”,
D. Blyth et al., NPDGamma Collaboration, Physical Review Letters, 121
, 242002


31.  “Measurement of the Absolute Neutron Beam Polarization from a Supermirror               Polarizer and the Absolute Efficiency of a Neutron Spin Rotator for the NPDGamma  Experiment using a Polarized 3He Neutron Spin-filter”

Musgrave, et al., NPDGamma Collaboration,  Nuclear Instruments and Methods in Physics Research Section A 895, 19-28 (2018)


30.  “New polarized small angle neutron scattering capability at the high flux isotope
reactor”, T. Wang, C. Jiang, T. Farmer, L. Debeer-Schmitt, J. Wenzel, L. McDonald,
J. Robertson, M. Fitzsimmons,
X. Tong*, Physica B: Condensed Matter, 551
, 492


        29.  “Soft antiphase tilt of oxygen octahedra in the hybrid improper multiferroic Ca3Mn1.9Ti0.1O7”

Ye, J. Wang, J. Sheng, C. Hoffmann, T. Gu, H.J. Xiang, W. Tian, J.J. Molaison,   A.M. dosSantos, M. Matsuda, B.C. Chakoumakos, J.A. Fernadez-Beca, X. Tong, B. Gao, J.W. Kim, S.W. Cheong, Phys. Rev. B, 97, 041112,   (2018)


28. “ Status of the NPDGamma experiment”, J. Fry et al., Hyperfine Interactions 238, 11


27. “Discrete symmetry tests in neutron-induced compound states”, H. M. Shimizu et al.,
NOPTREX collaboration, Proceeding of Science, The International Nuclear Physics
Conference 2016, 187 (2017)


26.  “Independence of work hardening and precipitation strengthening in a nanocluster
strengthened steel”, S. S. Xu, Y. Zhao, X. Tong, H. Guo, L. Chen, L. W. Sun, M.
Peng, M. J. Chen, D. Chen, Y. Cui, G. A. Sun, S. M. Peng, Z. W. Zhang, Journal of
Alloys and Compounds, 712, 573 (2017)


25. “Setup for Polarized Neutron Imaging Using in situ 3He Cells at the Oak Ridge National Laboratory High Flux Isotope Reactor CG1-D beamline”

I. Dhiman, R. Ziesche, T. Wang, H. Bilheux, L. Santodonato, X. Tong, C. Jiang, I. manke, W. Treimer, T. Chatterji, Rev. of Sci. Instr. 88, 095103 (2017)


  24. “New Generation High Performance in situ Polarized 3He System for Time-of-flight Beam at Spallation Sources”

  C.Y. Jiang, X. Tong*, D.R. Brown, A. Glavic, H. Ambaye, R. Goyette, M. Hoffmann, A.A. Parizzi, J.L. Robertson, V. Lauter, Rev. of Sci. Instr. 88, 025111 (2017)


        23. “Rare-earth High-entropy Alloys with Giant Magnetocaloric effect”

  Y. Yuan, Y. Wu, X. Tong, H. Zhang, H. Wang, X.J. Liu, L. Ma, H.L. Suo, Z.P. Lu Acta Materialia 125, 481-489 (2017)


        22. “Texture Evolution and Their Effects on the Mechanical Properties of Duplex Mg-Li Alloy”

  Y. Zou, L. Zhang, H. Wang, X. Tong, M. Zhang, Z. Zhang, J. of Alloys and Compounds, 669, 72-78 (2016)


        21. “Measuring Gas Temperature During Spin-exchange Optical Pumping Process”

  E. Normand, C.Y.Jiang, D.Brown, L. Robertson, L. Crow, X.Tong*, J. of Physics: Conference Series 711, 012012 (2016)


  20. “Development of Stable, Narrow Spectral Line-width, Fiber Delivered Laser Source for Spin Exchange Optical Pumping”

  B. Liu, X. Tong, C.Y. Jiang, D. Brown, L. Robertson, Applied Optics 54, 17 (2015)


        19. “Recent Progress on HYSPEC, and Its Polarization Analysis Capabilities”

  B. Winn, U. Filges, V.O. Garlea, M.G-B, M. Hagen, C.Y. Jiang, M. Kenzelmann, L. Passell, S.M. Shapiro, X. Tong, I. Zaliznyak, Proceedings of QENS   2014/
   WINS 2014, EPJ Web of Conferences 83, 03017 (2015)


        18. “Non-Uniform Transmission of Supermirror Devices for Neutron Polarization”

X. Tong*, J.L. Robertson, R. Pynn, Nuclear Instruments and Methods in Physics Research Section A 768, 77-83 (2014)


        17. “Lifetime Behavior and Polarization Stability in 3He Neutron Spin Filter Cells”

S. Boag, C.Y. Jiang, X. Tong, S.R. Parnell, J. Phys.: Conf. Ser. 528, 012019 (2014)


16. “Development of a Compact in situ Polarized 3He Neutron Spin Filter at Oak Ridge National Laboratory”

C.Y. Jiang, X. Tong*, D.R. Brown, S.X. Chi, A.D. Christianson, B.J. Kadron, J.L. Robertson, B. Winn, Rev. of Sci. Instr. 85, 075112 (2014)


15. “Spin Exchange Optical Pumping Based Polarized 3He Filling Station for the Hybrid Spectrometer at the Spallation Neutron Source”

C.Y. Jiang, X. Tong*, D.R. Brown, H. Culbertson, M.K. Graves-Brook, M.E. Hagen, B. Kadron, W.T. Lee, J.L. Robertson, B. Winn, Rev. of Sci. Instr. 84, 065108 (2013)


        14. “Polarized 3He Neutron Spin Filters at Oak Ridge National Laboratory”

C.Y. Jiang, X. Tong*, D.R. Brown, W.T. Lee, H. Ambaye, J.W. Craig, L. Crow, H. Culbertson, R. Goyette, M.K. Graves-Brook, M.E. Hagen, B. Kadron, V. Lauter, L.W. McCollum, J.L. Robertson, B. Winn, A.E. Vandegrift, Physics Procedia 42, 191-199 (2013)


13. “Magnetic Neutron Scattering of Thermally Quenched K-Co_Fe Prussian Blue Analog Photomagnet”

D.M. Pajerowski, V.O. Garlea, E.S. Knowles, M.J. Andus, M.F. Dumont, Y.M. Calm, S.E. Nagler, X. Tong, D.R. Talham, M.W. Meisel, Physical Review B 86, 054431 (2012)


        12. “In situ Polarized 3He System for the Magnetism Reflectometer at the Spallation Neutron Source”

X. Tong*, C.Y. Jiang, V. Lauter, H. Ambaye, D. Brown, L. Crow, T.R. Gentile, R. Goyette, W.T. Lee, A. Parizzi, J.L. Robertson, Review of Scientific Instruments 83, 075101 (2012)


        11. “The CG1 Instrument Development Test Station at the High Flux Isotope Reactor”

L. Crow, L. Robertson, H. Bilheux, M. Fleenor, E. Iverson, X. Tong, D. Stoica, W.T. Lee, Nuclear Instruments and Methods in Physics Research Section A 634, S71-S74 (2011)


10. “A Measurement of the Change of the Energy Dependence of the Total Cross-Section of Phase II Solid Methane from Confinement in Aerogel Glass”

H. Yan, D. V. Baxter, C. Y. Jiang, H. Kaiser, Y. C. Shin, W. M. Snow, X. Tong, Nuclear Instruments and Methods in Physics Research Section B 269, 425-430 (2011)


09. “Measurements of the Neutron Brightness from a Phase II Solid Methane Moderator at the LENS Neutron Source”

Y.C. Shin, C.M. Lavelle, W.M. Snow, D.V. Baxter, X. Tong, H.Y. Yan, M. Leuschner, Nuclear Instruments and Methods in Physics Research Section A 620, 375-381 (2010)


        08. “Electrical Heating for SEOP-based Polarized 3He System”

         X. Tong*, J. Pierce, W. T. Lee, M. Fleenor, W. C. Chen, G. L. Jones, J. L Robertson,          J. Phys.: Conf. Ser. 251, 012087 (2010)


        07. “In-Situ Polarized 3He Based Neutron Polarization Analyzer for SNS Magnetism Reflectometer”

         W. T. Lee, X. Tong, W.C. Chen, T. Gentile, J. Pierce, M. Fleenor, A.A. Parizzi, A.      Ambaye, R. Goyette, V. Lauter, F. Klose, H. Kaiser, D.V. Baxter, C. Lavelle, A.    Ismaili, J. L Robertson, J. Phys.: Conf. Ser. 251, 012086 (2010)


06. “Increasing the Pump-up Rate to Polarize 3He Gas Using Spin-exchange Optical Pumping Method”

         W.T. Lee, X. Tong, D. Rich, Y. Liu, M. Fleenor, A. Ismaili, J. Pierce, M. Hagen, J.     Dadras, J. Lee Robertson, Physica B 404, 2670-2672 (2009)


  05. "Compact 3He Neutron Polarizer with Online Optical Pumping and Fast-Switching of Spin-Up/Spin-Down Polarizing Mode"

  G.L. Jones, F. Dias, B. Collett, W.C. Chen, T. Gentile, P.M.B. Piccoli, M.E. Miller, A.J. Schultz, H.Y. Yan, X. Tong, M. Snow, W.T. Lee, C. Hoffmann,    J.   Thomison, Proceedings of International Collaboration on Advance Neutron Source (ICANS-XVII), Vol. III, 838-843 (2006)


04. “Test of a Continuously Polarized 3He Neutron Spin Filter with NMR-Based Polarization Inversion on a Single-Crystal Diffractometer”

         G.L. Jones, F. Dias, B. Collett, W.C. Chen, T.R. Gentile, P.M.B. Piccoli, M.E. Miller, A.J. Schultz, H. Yan, X. Tong, W.M. Snow, W.T. Lee, C. Hoffmann, J. Thomison, Physica B 385-386, 1131 -1133 (2006)


        03. “Continuously Operating Compact 3He-Based Neutron Spin Filter”

G.L. Jones, J. Baker, W.C. Chen, B. Collett, J.A. Cowan, M.F. Dias, T.R. Gentile, C. Hoffmann, T. Koetzle, W.T. Lee, K. Littrell, M. Miller, A. Schultz, W.M. Snow, X. Tong, H. Yan, A. Yue, Physica B 356, 86 - 90 (2005)


        02. “Polarized 3He Spin Filters in Neutron Scattering”

T.R. Gentile, E. Babcock, J.A. Borchers, W.C. Chen, D. Hussey, G.L. Jones, W.T. Lee, C.F. Majkzrak, K.V. O’Donovan, W.M. Snow, X. Tong, S.G.E. te Velthuis, T.G. Walker, H. Yan, Physica B 356, 96 -102 (2005)


        01. “Polarized 3He Gas Compression System Using Metastability Exchange Optical Pumping”

D.S. Hussey, D.R. Rich, A.S. Belov, X. Tong, H. Yang, C. Bailey, C.D. Keith, J. Hartfield, G.D.R. Hall, T.C. Black, W.M. Snow, Review of Scientific Instruments, 76 ,053503, (2005)



Stable, narrow spectral linewidth fiber-delivered laser source for spin exchange optical pumping, US 10,126,558 B2Bo Liu, Oak Ridge, TN(US); Xin Tong, Knoxville, TN(US); Chenyuan Jiang, Knoxville, TN(US); Lee Robertson, Oak Ridge, TN(US)


        (1)First measurement of p-odd violating asymmetry in npdgamma   2019-01-17
        (2)Neutron Scattering for catalysts   2019-01-15
        (3)Polarized neutrons for fundamental physics studies at CSNS   2018-12-19
        (4)Application of Neutron Scattering in Engineering and Structural Materials   2018-12-04
        (5)Current Status of China Spallation Neutron Sources   2018-12-03
        (6)Polarized neutron report   2018-11-07
        (7)Polarized neutron imaging investigation of superconductors and magnetic transitions   2018-10-14
        (8)Polarized Neutron Scattering at Oak Ridge National Laboratory   2017-07-06
        (9)Polarized 3He for ev Neutrons   2016-05-05
        (10)Polarized 3He for ev Neutrons   2015-05-05
        (11)Polarized 3He Capabilities at SNS and HFIR   2014-03-19
        (12)Polarized Neutron Scattering at SNS & HFIR   2013-12-20
        (13)Neutron Spin Filter Development at SNS   2011-11-23
        (14)SNS Polarized 3He Program Updates   2011-08-18
        (15)The HYSPEC Polarized Beam Spectrometer   2011-01-20
        (16)Polarized 3He Gas Filling Station   2009-05-23
        (17)Polarized Neutron Diffraction Study of the Ferromagnetic Semiconductor Yb14MnSb11   2008-02-14

Honors & Distinctions

(1​)“Pioneer”Hundred-TalentCategoryA,Chinese Academy ofSciences,July 2018

(2)Supplement Executive Award (SPA), Oak Ridge National Laboratory,Nov.2014

(3)Significant EventAward (SEA), Oak Ridge National Laboratory, Oct.2014

(4)Significant EventAward (SEA), Oak Ridge National Laboratory, Apr.2012