1. D.T. Palmer, Doctor thesis, The Next Generation Photo-injector, 1998, pp. 64.
2. X. He, Doctor Thesis, Theoretical and Initial Experimental Research on Low Emittance Photo-injector, 2006, pp. 78–79.
3. L. Xiao, R.F. Boyce, D.H. Dowell, Z. Li, C. Limborg-Deprey, J.F. Schmerge, Dual Feed RF Gun Design for the LCLS, PAC 2005, Knoxville, TN, USA.
4. D.T. Palmer, R.H. Miller, H. Winick, SLAC, X.J. Wang, K. Batchelor, M. Woodle, I. Ben-ZVI, BNL ATF, Microwave Measurements of the BNL/SLAC/UCLA 1.6 Cell Photocathode RF Gun, PAC 1995, Dallas, TX, USA.
5. J.B. Rosenzweig, S. Anderson, X. Ding, D. Yu, The Effects of RF Asymmetries on Photo-injector Beam Quality, PAC 1999, New York City, USA.