TY  - CONF
AU  - Otani, M.
AU  - Futatsukawa, K.
AU  - Hirano, K.
AU  - Kondo, Y.
AU  - Liu, Y.
AU  - Miura, A.
AU  - Miyao, T.
AU  - Oguri, H.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Longitudinal Measurements and Beam Tuning in the J-PARC Linac MEBT1
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - J-PARC linac is operated with design peak current of 50 mA from October 2018. Recently we succeeded in establishing longitudinal measurement at MEBT1, with which the beam matching is being studied in MEBT1. In this poster, recent measurements and beam tuning results in MEBT1 will be presented.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 968
EP  - 970
KW  - MEBT
KW  - linac
KW  - DTL
KW  - simulation
KW  - rfq
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-MOPTS048
UR  - http://jacow.org/ipac2019/papers/mopts048.pdf
ER  - 

TY  - CONF
AU  - Liu, Y.
AU  - Fang, Z.
AU  - Futatsukawa, K.
AU  - Ito, T.
AU  - Miura, A.
AU  - Miyao, T.
AU  - Morishita, T.
AU  - Moriya, K.
AU  - Okabe, K.
AU  - Otani, M.
AU  - Shibata, T.
AU  - Tamura, J.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Progress of J-PARC LINAC Commissioning
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - After energy and intensity upgrade to 400MeV and 50mA respectively, J-PARC linac were ready for 1 MW beam power from RCS. J-PARC is now successfully operated at 50mA/400MeV for 500kW at neutron target, and on the way to 1MW. The next milestones 1.2 and 1.5MW from RCS are relying on feasibility and property of increase of peak current to 60 mA and the pulse width to 600us in linac. Beam studies were carried out at linac to study the initial beam parameters from ion source/RFQ, to find the optimized lattice and matching, to clarify beam loss source and to mitigate the loss/residue dose for the power upgrade.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 1990
EP  - 1992
KW  - linac
KW  - lattice
KW  - rfq
KW  - operation
KW  - DTL
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-TUPTS027
UR  - http://jacow.org/ipac2019/papers/tupts027.pdf
ER  - 

TY  - CONF
AU  - Paoluzzi, M.M.
AU  - Arnaudon, L.
AU  - Bretin, V.
AU  - Cuvet, Y.
AU  - Daricou, J.
AU  - Energico, S.
AU  - Haase, M.
AU  - Jones, A.J.
AU  - Landré, D.
AU  - Ohmori, C.
AU  - Rossi, C.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - The New 1-18 MHz Wideband RF System for the CERN PS Booster
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - The LHC Injector Upgrade (LIU) project at CERN prepares the injectors to meet the requirements of the High Luminosity LHC. For protons, it includes the new Linac4, PS Booster (PSB), PS and SPS. Among the major changes concerning the PSB, the extraction energy increase from 1.4 GeV to 2 GeV and the higher beam intensity, made possible by the Linac4 together with the new charge exchange injection system into the PSB (2·10¹³ protons) strongly affect the RF system requirements. To deal with this more demanding beam operation, a new RF system was designed. It is based on modern magnetic alloy loaded cavities driven by solid-state amplifiers. Its wideband frequency response (1 MHz to 18 MHz) covers all the required frequency schemes. This new RF system has been produced in 2017 and 2018; installation is planned during 2019, the first year of Long Shutdown 2 (LS2) and commissioning foreseen in 2020. Most of the production and testing was outsourced to industry; parts acceptance, cavities assembly and pre-testing was done in-house. A quality assurance plan was established to achieve the required high reliability. This paper describes the procurement, production and testing strategies and methodologies. It also reports the achieved results, system performances and relevant statistics.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3063
EP  - 3065
KW  - cavity
KW  - vacuum
KW  - electronics
KW  - electron
KW  - impedance
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-WEPRB107
UR  - http://jacow.org/ipac2019/papers/weprb107.pdf
ER  -