| Paper |
Title |
Page |
| WEPCH029 |
Injection and Extraction Orbit of the J-PARC Main Ring
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1987 |
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- M. Tomizawa, Y. Kamiya, H. Kobayashi, I. Sakai, Y. Shirakabe
KEK, Ibaraki
- S. Machida
CCLRC/RAL/ASTeC, Chilton, Didcot, Oxon
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The J-PARC main ring (MR) accelerates a high intensity proton beam and deliver to the neutrino experimental hall by the fast extraction and to the hadron experimental facility by the slow extraction. The beam from the rapid cycle synchrotron (RCS) is injected by the bunch to bucket transfer into the MR. The MR has two beam dump lines, the first one is used to dump the beam at injection energy and the second one can be used to abort accelerated beam. The beam loss at the injection and extraction is one of the critical issue for high intensity proton accelerators. We report designed injection and extraction orbits and discuss about the beam apertures and the beam loss.
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| WEPCH188 |
Compact Picosecond Pulse Radiolysis System Using Photo-cathode RF Gun
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2373 |
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- M. Washio, Y. Hama, Y. Kamiya, M. Kawaguchi, R. Moriyama, H. Nagai, K. Sakaue
RISE, Tokyo
- H. Hayano, J. Urakawa
KEK, Ibaraki
- S. Kashiwagi
ISIR, Osaka
- R. Kuroda
AIST, Tsukuba, Ibaraki
- K.U. Ushida
RIKEN, Saitama
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A very compact picosecond pulse radiolysis system has been installed and operated at Waseda University. The system is composed of a laser photo-cathode RF gun as the pump source and stable Nd:YLF laser as the white light source to probe the reaction in the picosecond region. The white light generation is performed by the non-linear effect of intense laser light with the wavelength of 1047 nm into the water cell. The experimental results with the time resolution of 18 ps by examining the time profile of hydrated electron have been obtained. The system configuration will be also presented at the conference.
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