Speaker
Pranab Saha
(Japan Proton Accelerator Research Complex)
Description
The 3-GeV RCS at J-PARC at present operates at a relatively high intensity beam of nearly 1 MW for the spallation neutron source. The beam loss and the corresponding residual radiation, which is the key limitation against beam intensity ramp up, has been well mitigated to a minimum level in a recent series of beam studies and feedback from realistic numerical simulations. The residual beam loss even at the designed 1 MW beam power is now mostly due to the foil scattering of the circulating beam during multi-turn injection, while other beam loss sources have been well optimized to minimize the beam loss for achieving a stable operation presently at 800 kW.
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Author
Pranab Saha
(Japan Proton Accelerator Research Complex)
Co-authors
Shuichiro Hatakeyama
(Japan Atomic Energy Agency)
Hiroyuki Harada
(Japan Proton Accelerator Research Complex)
Hideaki Hotchi
(High Energy Accelerator Research Organization)
Katsuhiro Moriya
(Japan Proton Accelerator Research Complex)
Takamitsu Nakanoya
(Japan Proton Accelerator Research Complex)
Kota Okabe
(Japan Proton Accelerator Research Complex)
Hidefumi Okita
(High Energy Accelerator Research Organization)
Yoshihiro Shobuda
(Japan Proton Accelerator Research Complex)
Tomohiro Takayanagi
(Japan Atomic Energy Agency)
Fumihiko Tamura
(Japan Atomic Energy Agency)
