Speaker
Pranab Saha
(Japan Proton Accelerator Research Complex (J-PARC))
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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Primary author
Pranab Saha
(Japan Proton Accelerator Research Complex (J-PARC))
Co-authors
Shuichiro Hatakeyama
(Japan Atomic Energy Agency)
Hiroyuki Harada
(Japan Proton Accelerator Research Complex (J-PARC))
Hideaki Hotchi
(High Energy Accelerator Research Organization)
Katsuhiro Moriya
(Japan Proton Accelerator Research Complex (J-PARC))
Takamitsu Nakanoya
(Japan Proton Accelerator Research Complex (J-PARC))
Kota Okabe
(Japan Proton Accelerator Research Complex (J-PARC))
Hidefumi Okita
(High Energy Accelerator Research Organization)
Yoshihiro Shobuda
(Japan Proton Accelerator Research Complex (J-PARC))
Tomohiro Takayanagi
(Japan Atomic Energy Agency)
Fumihiko Tamura
(Japan Atomic Energy Agency)
