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TY - CONF AU - Yoshimoto, M. AU - Harada, H. AU - Hotchi, H. AU - Kinsho, M. AU - Saha, P.K. AU - Tamura, F. AU - Yamamoto, M. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - Measurement of Momentum Spread of the Injection Beam with Longitudinal Tomography Method in the J-PARC RCS 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 - In the J-PARC RCS, the beam tuning toward the design output beam power of 1MW were started after the completing of the beam energy and beam current upgrades in the LINAC. One of the important issues to achieve the 1MW beam operation is the optimization of the injection beam from the LINAC. Due to the longitudinal beam tuning in the LINAC, the momentum spread of the injected beam into the RCS was measured with the longitudinal tomography method. Our longitudinal tomography tool had been developed using the simple algorithm with the Convolution Back-Projection (CBP) method for the beam storage mode of the RCS. Accordingly, we improved this tool to expand into the acceleration mode. PB - JACoW CP - Geneva, Switzerland SP - 944 EP - 946 KW - linac KW - injection KW - acceleration KW - operation KW - synchrotron DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-MOPTY003 UR - http://jacow.org/ipac2015/papers/mopty003.pdf ER -