Self-consistent long-term dynamics of space charge driven resonances in 2D and 3D
Understanding the 3D collective long-term response of beams exposed to resonances is of
theoretical interest and essential for advancing high intensity synchrotrons. This study of a …
theoretical interest and essential for advancing high intensity synchrotrons. This study of a …
Identification and characterization of high order incoherent space charge driven structure resonances in the CERN Proton Synchrotron
F Asvesta, H Bartosik, S Gilardoni, A Huschauer… - … Review Accelerators and …, 2020 - APS
Space charge is typically one of the performance limitations for the operation of high
intensity and high brightness beams in circular accelerators. In the Proton Synchrotron (PS) …
intensity and high brightness beams in circular accelerators. In the Proton Synchrotron (PS) …
Coherent resonance stop bands in alternating gradient beam transport
K Ito, H Okamoto, Y Tokashiki, K Fukushima - Physical Review Accelerators …, 2017 - APS
An extensive experimental study is performed to confirm fundamental resonance bands of
an intense hadron beam propagating through an alternating gradient linear transport …
an intense hadron beam propagating through an alternating gradient linear transport …
Empirical condition of betatron resonances with space charge
K Kojima, H Okamoto, Y Tokashiki - Physical Review Accelerators and Beams, 2019 - APS
This paper addresses the generalization of the single-particle betatron resonance condition
derived by Courant and Snyder more than a half century ago. A two-dimensional resonance …
derived by Courant and Snyder more than a half century ago. A two-dimensional resonance …
Plasma-cascade instability
In this paper we describe a new microbunching instability occurring in charged particle
beams propagating along a straight trajectory. The nature of these exponentially growing …
beams propagating along a straight trajectory. The nature of these exponentially growing …
Three-dimensional envelope instability in periodic focusing channels
J Qiang - Physical Review Accelerators and Beams, 2018 - APS
The space-charge driven envelope instability can be of great danger in high intensity
accelerators and was studied using a two-dimensional (2D) envelope model and three …
accelerators and was studied using a two-dimensional (2D) envelope model and three …
Compensating tune spread induced by space charge in bunched beams
The effects of space charge play a significant role in modern-day accelerators, frequently
constraining the beam parameters attainable in an accelerator or in an accelerator chain …
constraining the beam parameters attainable in an accelerator or in an accelerator chain …
Development of a compact plasma trap for experimental beam physics
R Takai, H Enokizono, K Ito, Y Mizuno… - Japanese journal of …, 2006 - iopscience.iop.org
A tabletop experimental system has been developed for the study of various collective
effects in space-charge-dominated beams. It is based on the recently proposed idea that the …
effects in space-charge-dominated beams. It is based on the recently proposed idea that the …
J-PARC 3-GeV RCS: 1-MW beam operation and beyond
H Hotchi, H Harada, N Hayashi, M Kinsho… - Journal of …, 2020 - iopscience.iop.org
Abstract The J-PARC 3-GeV rapid cycling synchrotron (RCS) has recently achieved a 1-MW
beam operation with considerably low fractional beam loss of a couple of 10− 3 as a result of …
beam operation with considerably low fractional beam loss of a couple of 10− 3 as a result of …
Feasibility of beam crystallization in a cooler storage ring
Y Yuri, H Okamoto - Physical Review Special Topics—Accelerators and …, 2005 - APS
It has been known theoretically that a charged-particle beam circulating in a storage ring
exhibits an “ordered” configuration at the space-charge limit. Such an ultimate state of matter …
exhibits an “ordered” configuration at the space-charge limit. Such an ultimate state of matter …