Ying K. Wu, Associate Professor and Associate Director for Accelerators & Light Sources, DFEL (member, Faculty, Medical Physics Graduate Program) of Physics

Contact Info:

Office Location:	210 FEL Building
Office Phone:	(919) 660-2654, (919) 660-2646
Email Address:

Teaching (Fall 2013):

• PHYSICS 141D.02, GENERAL PHYSICS I (REC) Synopsis

  Physics 150, Th 01:15 PM-03:15 PM

• PHYSICS 141D.04, GENERAL PHYSICS I (REC) Synopsis

  Physics 154, Th 03:30 PM-05:30 PM

• PHYSICS 141D.08, GENERAL PHYSICS I (REC) Synopsis

  Physics 150, F 01:15 PM-03:15 PM

Education:

PhD	Duke University	1995
MA	Duke University	1991
BS	Beijing University (Peking University)	1988

Specialties:

Beam physics
Nonlinear dynamics and complex systems

Research Interests: Accelerator Physics and Novel Light Source Development

Prof. Wu is interested in nonlinear dynamics of charged particle beams, coherent radiation sources, and the development of novel accelerators and light sources. One of his research focuses is to study the charged particle nonlinear dynamics using the modern techniques such as Lie Algebra, Differential Algebra, and Frequency Analysis. This direction of research will significantly further the understanding of the nonlinear phenomena in light source storage rings and collider rings, improve their performance, and provide guidance for developing next generation storage rings. The second area of research is to study and develop coherent radiation sources such as broad-band far infrared radiation from dipole magnets and coherent mm-wave radiation from a free-electron-laser (FEL). With this direction of research, he hopes to study the beam stability issues, in particular, the single bunch instabilities in the storage ring, develop diagnostics to monitor and improve the stability of the light source beams, and eventually develop novel means to overcome instabilities. These areas of research will provide foundations for developing a femto-second hard x-ray Compton back scattering radiation source driven by a mm-wave FEL - a next generation light source.

Current Ph.D. Students   (Former Students)

• Weizheng Zhou  
• Jun Yan  

Postdocs Mentored

• Wenzhong Wu (October, 2012 - present)  
• Hao Hao (October, 2011 - present)  
• Jingyi Li (2002/07-2005/07)  

Recent Publications   (More Publications)

1. Xu Wei, W.Z. Wu, J.Y. Li, He Due-Hui, Y.K. Wu, Betatron Tune Measurement System Based on Bunch-by-bunch Transverse Feedback at Duke Storage Ring, Chinese Phys. C, vol. 37 (2013), pp. 037003
2. Xu Wei, W.Z. Wu, He Due Hui, and Y.K. Wu, esign and Optimization of Longitudinal Feedback Kicker Cavity for HLS-II Storage Ring, Chinese Phys. C, vol. 37 (2013), pp. 037003
3. . Laskaris, Q. Ye, B. Lalremruata, M. W. Ahmed, T. Averett, A. Deltuva, D. Dutta, A. C. Fonseca, H. Gao, J. Golak, M. Huang, H. Karwowski, J. M. Mueller, L. S. Myers, C. Peng, B. A. Perdue, X. Qian, P. U. Sauer, R. Skibinski, S. Stave, J. R. Tompkins, H. R. Weller, H. Witala, Y. K. Wu, Q. J. Ye, Y. Zhang, and W. Zheng, First measurement of spin-dependent double-differential cross sections and GDH integrand from 3He(gamma, n)pp at incident photon energies of 12.8 and 14.7 MeV, Phys. Rev. Lett. (Accepted, 2013)
4. W.R. Zimmerman, M.W. Ahmed, B. Bromberger, S.C. Stave, A. Breskin, V. Dangendorf, Th. Delbar, M. Gai, S.S. Henshaw, J.M. Mueller, C. Sun, K. Tittelmeier, H.R. Weller, and Y.K. Wu, Unambiguous Identification of the Second $^{2+}$State in $^{12}$C and the Structure of the Hoyle State, Phys. Rev. Lett., vol. 110 (2013), pp. 152502  [abs]
5. Xu Wei, W.Z. Wu, He Due-Hui, and Y. K.Wu, Design and Optimization of Longitudinal Feedback Kicker Cavity for HLS-II Storage Ring, Chinese Phys. C (Accepted, 2012)