The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Ohmori, C. AU - Hara, K. AU - Hasegawa, K. AU - Nomura, M. AU - Schnase, A. AU - Shimada, T. AU - Tamura, F. AU - Toda, M. AU - Yamamoto, M. AU - Yoshii, M. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - Development of High Gradient RF System for J-PARC Upgrade J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015 C1 - Richmond, VA, USA T2 - International Particle Accelerator Conference T3 - 6 LA - english AB - A new 5-cell cavity has been developed for the upgrade of the J-PARC Main Ring. In the cavity, high impedance magnetic alloy - Finemet FT3L, cores are loaded. The cavity was installed and has been used for the 250 kW beam operation. The cavity is operated with the RF voltage of 70 kV which is two times higher voltage than the present cavities. Eight more cavities will be assembled and installed in the next two years to increase the repetition rate of the Main Ring. This paper describes status of cavity operation under the beam loading and status of the mass productions of the cavities. PB - JACoW CP - Geneva, Switzerland SP - 50 EP - 52 KW - cavity KW - impedance KW - operation KW - proton KW - acceleration DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-MOAD1 UR - http://jacow.org/ipac2015/papers/moad1.pdf ER -