Experimental Demonstration of the Induction Synchrotron

Abstract

We report an experimental demonstration of the induction synchrotron, the concept of which has been proposed as a future accelerator for the second generation of neutrino factory or hadron collider. The induction synchrotron supports a superbunch and a superbunch permits more charge to be accelerated while observing the constraints of the transverse space-charge limit. By using a newly developed induction acceleration system instead of radio-wave acceleration devices, a single proton bunch injected from the 500 MeV booster ring and captured by the barrier bucket created by the induction step voltages was accelerated to 6 GeV in the KEK proton synchrotron.

Warm dense matter study and pulsed-power developments for X-pinch equipment in Nagaoka University of Technology

“…Pulsed-power development for point-spot-like X-ray source generated by X-pinch technique [26] For observing interior of dense plasmas generated by the intense ion beams or the pulsed-power discharges [27][28][29][30][31][32][33], we required intense, point-spot like X-ray source, because of short lifetime, small size and high density of those plasmas. One of the intense, point-spot like X-ray sources is X-pinch technique [34][35][36][37][38][39][40][41].…”

Circular modes for flat beams in the LHC

“…For a not so high emittance ratio, like 10 or so, this mismatch, probably can be ether neglected or compensated on average only. To inject into a truly space charge self-consistent state [8], allowing emittance ratio $20 or higher, the inductive synchrotron can be used [9]. The application of circular modes for the LHC complex definitely requires circular optics for the booster and PS.…”

Wideband induction acceleration and its intrinsic nature in the KEK digital accelerator

“…The induction synchrotron, which was developed at KEK in 2000 [1], functions as a slow-cycling synchrotron and uses the former KEK 12 GeV proton synchrotron ring [5]. The induction acceleration system can cover an extremely wide range in the revolution frequency; thus, we call the present acceleration method wideband induction acceleration.…”

“…In Section 3, the acceleration scheme employed in the experiments is introduced. It is a fully programmable system that is completely different from the feedback acceleration system in the 2006 slow cycling experiment [5]. Another important process in the tuning procedures for wideband acceleration is discussed in Section 4.…”