Accelerator Science Group       Accelerator Science, ISIR, Osaka Univ.

Home       Inroduction       Member       Research       Activity       Access       Link

English / Japanese ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ ELECTRON LINEAR ACCELERATOR Single Bunch L-Band Electron Linear Accelerator 　The single bunch L-band electron linear accelerator consists of an electron gun, two 12th subharmonic prebunchers (SHPB's), a 6th SHPB, a prebuncher, a buncher and an accelerating waveguide. 　These SHPB's compress the 5 ns of electron beam by about a factor of 10, so that the bunch entering the prebuncher has a width of about 500 ps. The bunched beam is accelerated up to 38 MeV by the accelerating waveguide. 　The single bunch of 67 nC and 20 ps duration is obtained for experiments of ultrafast reactions. 150 MeV S-Band Electron Linear Accelerator 　The 150 MeV S-Band Electron Linear Accelerator which is characterized by the relatively high accelerating gradient is constructed. 　This machine consists of three accelerating waveguides (one 2.8 m long and two 1.9 m lomg), to which rf is supplied from three 35 MW klystrons. 　The beam energy evaluated for zero beam current is 123 MeV at a total input rf power of 81 MW. 　The accelerating gradient of 19.3 MV/m is obtained in the 1.9 m waveguide.

Mailing Address： Department of Accelerator Sicence The Institute of Scientific and Industrial Research, Osaka University 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan TEL +81-6-6879-8486 FAX +81-6-6879-8489