| Paper |
Title |
Page |
| MOPAN028 |
Current Status of Virtual Accelerator at J-PARC 3 GeV Rapid Cycling Synchrotron
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215 |
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- H. Harada
- K. Furukawa
KEK, Ibaraki
- H. Hotchi, Y. Irie, F. Noda, H. Sako, H. Suzuki
JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
- S. Machida
STFC/RAL/ASTeC, Chilton, Didcot, Oxon
- K. Shigaki
Hiroshima University, Higashi-Hiroshima
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We have developed the logical accelerator called "Virtual Accelerator" based on EPICS for 3 GeV Rapid Cycling Synchrotron (RCS) in J-PARC. The Virtual Accelerator has a mathematical model of the beam dynamics in order to simulate the behavior of the beam and enables the revolutionary commissioning and operation of an accelerator. Additionally, we have constructed the commissioning tool based on the Virtual Accelerator. We will present a current status of the Virtual Accelerator system and some commissioning tool.
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| TUPAN061 |
Updated Simulation for the Nuclear Scattering Loss Estimation at the RCS Injection Area
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1526 |
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- P. K. Saha
- H. Hotchi, Y. Irie, F. Noda
JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
- S. Machida
STFC/RAL/ASTeC, Chilton, Didcot, Oxon
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We have updated the simulation for the realistic beam loss estimation at the RCS (Rapid Cycling Synchrotron) injection area of J-PARC(Japan Proton Accelerator Research Complex). At the injection area, beam loss caused by the nuclear scattering together with the multiple coulomb scattering at the charge-exchange foil is the dominant one and is an important issue for designing mainly the foil thickness and other beam elements like, the falling time of bump magnets after the injection is finished and so on. The simulation tool GEANT for the scattering effect and the real injection process have been employed together in order to estimate the beam loss turn by turn including identification of loss points too.
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| FRPMN046 |
Effects of Magnetic Field Tracking Errors on Beam Dynamics at J-PARC RCS
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4078 |
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- H. Hotchi
- S. Machida
STFC/RAL/ASTeC, Chilton, Didcot, Oxon
- F. Noda
JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
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The 3-GeV Rapid-Cycling Synchrotron (RCS) of J-PARC aims at providing a 1-MW proton beam at a repetition rate of 25 Hz for an injection energy of 400 MeV. In this paper, we discuss influences of field tracking errors between dipoles and quadrupoles and between different families of quadrupoles on beam dynamics in combination with effects of the space charge and intrinsic nonlinear fields for the J-PARC RCS.
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