| 
            
                J. Tanaka et al., “Construction Progress of the Photon Factory 2.5 GeV Electron Linac”, in Proc. 1981 Linear Accelerator Conf. (LINAC'81), Santa Fe, NM, USA, Oct. 1981, paper J201, pp. 360-362. | 
                                
            
             | 
            
                M. Yoshioka et al., “Lasertron - Laser Triggered RF-Source for Linacs in TeV Region”, in Proc. 1984 Linear Accelerator Conf. (LINAC'84), Seeheim, Germany, May 1984, paper FRQ0005, pp. 469-471. | 
                                
            
             | 
            
                A. Asami et al., “Injector of the Positron Generator”, in Proc. 1986 Linear Accelerator Conf. (LINAC'86), Stanford, CA, USA, Jun. 1986, paper TH3-25, pp. 496-498. | 
                                
            
             | 
            
                I. Sato et al., “Accelerator Guide of Positron Generator Linac”, in Proc. 1986 Linear Accelerator Conf. (LINAC'86), Stanford, CA, USA, Jun. 1986, paper TH3-26, pp. 499-501. | 
                                
            
             | 
            
                I. Sato et al., “Acceleration Characteristics of Positron Generator Linac”, in Proc. 1986 Linear Accelerator Conf. (LINAC'86), Stanford, CA, USA, Jun. 1986, paper TH3-27, pp. 502-504. | 
                                
            
             | 
            
                A. Asami et al., “Progress of Positron Generator at KEK”, in Proc. 1988 Linear Accelerator Conf. (LINAC'88), Williamsburg, VA, USA, Oct. 1988, paper TH3-20, pp. 577-579. | 
                                
            
             | 
            
                S. R. Ohsawa et al., “High-Power Hybrid Attenuator  Phase-Shifter Systems”, in Proc. 1990 Linear Accelerator Conf. (LINAC'90), Albuquerque, NM, USA, Sep. 1990, paper MO441, pp. 159-161. | 
                                
            
             | 
            
                I. Sato and Y. L. Wang, “Study of High Efficiency Linear Accelerator Structure”, in Proc. 1990 Linear Accelerator Conf. (LINAC'90), Albuquerque, NM, USA, Sep. 1990, paper MO449, pp. 183-185. | 
                                
            
             | 
            
                A. Enomoto et al., “Present Status and Reinforcement Plan of the KEK Positron Generator”, in Proc. 1990 Linear Accelerator Conf. (LINAC'90), Albuquerque, NM, USA, Sep. 1990, paper TH415, pp. 623-625. | 
                                
            
             | 
            
                Y. Ogawa, A. Asami, K. Furukawa, I. Sato, and T. Suzuki, “Laser Interferometer for the Precise Alignment of a Linear Accelerator”, in Proc. 1990 Linear Accelerator Conf. (LINAC'90), Albuquerque, NM, USA, Sep. 1990, paper TH464, pp. 770-772. |