Professor of Physics
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.
Jia, B., et al. “Influence of an imperfect energy profile on a seeded free electron laser performance.” Physical Review Special Topics Accelerators and Beams, vol. 13, no. 6, June 2010. Scopus, doi:10.1103/PhysRevSTAB.13.060701. Full Text Open Access Copy
Sun, C., et al. “Polarization measurement of stored electron beam using Touschek lifetime.” Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 614, no. 3, Mar. 2010, pp. 339–44. Scopus, doi:10.1016/j.nima.2010.01.034. Full Text
Bernstein, A. M., et al. “Chiral dynamics in photopion physics: Theory, experiment, and future studies at the HIγS facility.” Annual Review of Nuclear and Particle Science, vol. 59, Dec. 2009, pp. 115–44. Scopus, doi:10.1146/annurev.nucl.010909.083220. Full Text
Pietralla, N., et al. “Competition between excited core states and 1 ℏ ω single-particle excitations at comparable energies in 207Pb from photon scattering.” Physics Letters, Section B: Nuclear, Elementary Particle and High Energy Physics, vol. 681, no. 2, Oct. 2009, pp. 134–38. Scopus, doi:10.1016/j.physletb.2009.09.059. Full Text
Huang, S., et al. “Water-cooled, in-cavity apertures for high power operation of FEL oscillators.” Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 606, no. 3, July 2009, pp. 762–69. Scopus, doi:10.1016/j.nima.2009.04.017. Full Text
Sun, C., et al. “End-to-end spectrum reconstruction method for analyzing Compton gamma-ray beams.” Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 605, no. 3, July 2009, pp. 312–17. Scopus, doi:10.1016/j.nima.2009.03.237. Full Text
Sun, C., et al. “Energy and energy spread measurements of an electron beam by Compton scattering method.” Physical Review Special Topics Accelerators and Beams, vol. 12, no. 6, June 2009. Scopus, doi:10.1103/PhysRevSTAB.12.062801. Full Text
Weller, H. R., et al. “Research opportunities at the upgraded HIγS facility.” Progress in Particle and Nuclear Physics, vol. 62, no. 1, Jan. 2009, pp. 257–303. Scopus, doi:10.1016/j.ppnp.2008.07.001. Full Text
Storage ring based coherent far infrared/mm-wave radiation source and hard X-ray source with femto-second duration. An invited talk at 17th International Conference on the Application of Accelerators in Research and Industry (CAARI 2002. University ...