scholarly journals Design of electron storage ring for high-energy EIC cooling

2020 ◽  
Author(s):  
Jorg Kewisch ◽  
He Zhao ◽  
M. Blaskiewicz ◽  
Alexi V. Fedotov
Keyword(s):  
Storage Ring ◽  
High Energy ◽  
Electron Storage

scholarly journals At the downstream of the RF cavity of the electron storage ring there is emission of abnormal ultra-high energy electrons with energy up to 105 times of the beam energy

2021 ◽  
Author(s):  
Dapeng Qian
Keyword(s):  
Storage Ring ◽  
Beam Energy ◽  
High Energy ◽  
New Physics ◽  
Ultra High Energy ◽  
Electron Storage ◽  
Rf Cavity ◽  
High Energy Electrons ◽  
Relationship Of ◽  
Heisenberg's Uncertainty Principle

Abstract After considering Heisenberg's uncertainty principle, the mass-speed relationship of special relativity i.e. the Einstein-Lorentz mass formula can be extended to a more complete equation, which predicts that abnormal ultra-high energy electrons will be generated with a small probability when the electron beam passes through an accelerating electric field. The author used the accumulating detection method of a large number of events to test at the electron storage ring of BEPCII, of which results show that under the beam energy of 2GeV there is emission of abnormal ultra-high energy electrons with the highest energy reaching 400TeV at downstream of the RF cavity. For this reason, it is recommended that particle physicists conduct more experiments to fully verify this previously unknown phenomenon and further discover new physics.

Canadian high energy electron ring (CHEER): Exploring the microcosm at 10−18 m

1981 ◽  
Vol 59 (11) ◽  
pp. 1734-1741
Author(s):  
Nathan Isgur
Keyword(s):  
Storage Ring ◽  
High Energy ◽  
Energy Electron ◽  
Proton Accelerator ◽  
High Energy Electron ◽  
Electron Storage ◽  
Large Group ◽  
High Energies ◽  
Electron Ring ◽  
The Status

A large group of Canadian physicists has been studying the feasibility of building an electron storage ring (CHEER) tangent to a proton accelerator to study electron–quark collisions at extremely high energies. This article provides an overview of the physics, machine, and detector developments of the CHEER project along with a brief summary of the status of the project.

scholarly journals Generation of High Energy Gamma-ray by Laser Compton Scattering of 1.94-μm Fiber Laser in UVSOR-III Electron Storage Ring

2016 ◽  
Vol 89 ◽  
pp. 335-345 ◽  
Author(s):  
Heishun Zen ◽  
Yoshitaka Taira ◽  
Taro Konomi ◽  
Takehito Hayakawa ◽  
Toshiyuki Shizuma ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Compton Scattering ◽  
Storage Ring ◽  
Gamma Ray ◽  
High Energy ◽  
Electron Storage ◽  
High Energy Gamma ◽  
Energy Gamma ◽  
Laser Compton Scattering

scholarly journals The first achievement of longitudinal spin polarization in a high energy electron storage ring

1995 ◽  
Vol 343 (1-4) ◽  
pp. 436-443 ◽  
Author(s):  
D.P. Barber ◽  
M. Böge ◽  
H.-D. Bremer ◽  
R. Brinkmann ◽  
W. Brückner ◽  
...  
Keyword(s):  
Spin Polarization ◽  
Storage Ring ◽  
High Energy ◽  
Energy Electron ◽  
High Energy Electron ◽  
Electron Storage ◽  
Longitudinal Spin

scholarly journals Alpha-buckets in High Energy Electron Storage Rings (Review of Existing Experiments and Feasibility Studies for Future Developments)

2021 ◽  
Vol 4 (2) ◽  
Keyword(s):  
Light Source ◽  
Storage Ring ◽  
High Energy ◽  
Storage Rings ◽  
High Order ◽  
Beam Dynamics ◽  
Electron Storage ◽  
Non Linear ◽  
Compaction Factor ◽  
Electron Storage Rings

Electron storage rings operating at high energies have proven to be invaluable source of synchrotron radiation. Two and even three simultaneous beams of particles have been observed at different light source facilities worldwide. So called alpha-buckets were studied at Metrological Light Source (MLS) in Berlin (Germany), SOLEIL facility in France, DIAMOND light source in UK, NSLS ring in Brookhaven (USA). It is widely recognized that alpha buckets are general phenomena which is not restricted to a certain storage ring. However, earlier measurements showed essential limitations on parameters of alpha-buckets, strong dependence on high order (sextupole and octupoles) magnetic field imperfections and associated fast decay of electron current as well as reduced life time. Also a rising relevance of high order non-linear longitudinal beam dynamics is associated with new generation of diffraction limited light sources (DLSR) approaches, which all suffer nonlinear momentum compaction factor. A large variety of future generation electron synchrotrons require a comprehensive investigation of the physical processes involved into the operation of such rings. In this paper, we present review of high order non-linear longitudinal beam dynamics based on the longitudinal equations of motion and Hamiltonian expanded to a high order of the momentum compaction factor. Roots of the third order equation with a free term are derived in a form suitable for analytical estimations. The momentum independent term of orbit lengthening due to particle transverse excursions is estimated and taken into account. The results from simulations were benchmarked against existing experiments at the Karlsruhe Research Accelerator (KARA), SOLEIL and MLS rings. Parameters of three simultaneous beams and alpha buckets at MLS and SOLEIL have been reproduced with high accuracy. General conditions for stable operation of alpha buckets are presented. Based on analytical formulas and computer simulations, studies of longitudinal motion at KARA have been performed with an objective to estimate feasibility of filling and storing of beam in α-buckets. A Computer model was used to describe the behavior and dynamics of simultaneous beams in the KARA storage ring.

scholarly journals Simulation of the transit-time optical stochastic cooling process in the Cornell Electron Storage Ring

2021 ◽  
Vol 24 (6) ◽  
Author(s):  
S. T. Wang ◽  
M. B. Andorf ◽  
I. V. Bazarov ◽  
W. F. Bergan ◽  
V. Khachatryan ◽  
...  
Keyword(s):  
Transit Time ◽  
Storage Ring ◽  
Cooling Process ◽  
Electron Storage ◽  
Cornell Electron Storage Ring ◽  
Optical Stochastic Cooling
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