Positron-Production Experiment in Tungsten Crystal using 4 and 8-GeV Channeling Electrons at the KEKB Injector Linac       509
  T. Suwada, S. Anami, A. Enomoto, K. Furukawa, K. Kakihara, T. Kamitani, Y. Ogawa, S. Ohsawa, H. Okuno, T. Oogoe, KEK, Ibaraki-ken; T. Fujita, K. Umemori, K. Yoshida, Hiroshima University, Higashi-Hiroshima; R. Chehab, LAL, Orsay; V. Ababiy, A.P. Potylitsyn, I.E. Vnukov, TPU, Tomsk; R. Hamatsu, K. Sasahara, Tokyo Metropolitan University, Tokyo      
  PAPER