COOL2023 - List of Authors (Zhao, H.)

Paper	Title	Page
THPAM1R1	Theoretical and Simulation Study of Dispersive Electron Cooling	32
	H. Zhao, F. Ma, L.J. Mao, M.T. Tang, J.C. Yang, X.D. Yang IMP/CAS, Lanzhou, People’s Republic of China
	Funding: National Natural Science Foundation of China No. 12275323 The dispersion coupling effect has been successfully applied in stochastic cooling and laser cooling to realize 3D cooling. In electron cooling, the transverse cooling rate is usually smaller than the longitudinal one. By introducing dispersive cooling, it is possible to redistribute the cooling rate between the longitudinal and transverse planes. Theoretically, dispersive electron cooling can be achieved by introducing ion dispersion in the cooling section, and a transverse gradient of the longitudinal cooling force. The latter depends on many factors such as energy offset, transverse displacement, e-beam distribution, space charge effect, also the dispersion of e-beam. This means that there are several ways to achieve dispersive electron cooling. In my talk, I will give theoretical and simulation studies on dispersive electron cooling, and explain how these factors affect cooling rates. Based on the simple linear cooling force, a formula for estimating the cooling rate redistribution is also presented.
	Slides THPAM1R1 [2.667 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-COOL2023-THPAM1R1
About •	Received ※ 13 October 2023 — Accepted ※ 03 November 2023 — Issued ※ 02 December 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPOSRP18	Simulation Study of a Multi-Stage Rectilinear Channel for Muon Cooling	91
	R.H. Zhu, J.C. Yang, H. Zhao IMP/CAS, Lanzhou, People’s Republic of China C.T. Rogers STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
	The muon collider has the potential to be the most powerful tool for the exploration of frontiers in particle physics. In order to reach the high luminosity, the 6D emittance of the muon beam needs to be reduced by several orders of magnitude. Ionization cooling, which has recently been demonstrated in 4D by the Muon Ionization Cooling Experiment (MICE), is a promising cooling method for the muon beam. In the future, muon production and 6D ionization cooling experiments are planned at the High Intensity Accelerator Facility (HIAF) at the Institute of Modern Physics, Chinese Academy of Sciences (IMP, CAS). In this paper, a multi-stage rectilinear 6D ionization cooling channel is developed and the cooling simulation results using G4Beamline are presented, indicating good performance for muon beams with large emittance. This work serves as a good starting point for future research at HIAF.
	Poster THPOSRP18 [0.327 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-COOL2023-THPOSRP18
About •	Received ※ 18 September 2023 — Revised ※ 11 October 2023 — Accepted ※ 12 October 2023 — Issued ※ 02 December 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Theoretical and Simulation Study of Dispersive Electron Cooling

32

H. Zhao, F. Ma, L.J. Mao, M.T. Tang, J.C. Yang, X.D. Yang
IMP/CAS, Lanzhou, People’s Republic of China

Funding: National Natural Science Foundation of China No. 12275323
The dispersion coupling effect has been successfully applied in stochastic cooling and laser cooling to realize 3D cooling. In electron cooling, the transverse cooling rate is usually smaller than the longitudinal one. By introducing dispersive cooling, it is possible to redistribute the cooling rate between the longitudinal and transverse planes. Theoretically, dispersive electron cooling can be achieved by introducing ion dispersion in the cooling section, and a transverse gradient of the longitudinal cooling force. The latter depends on many factors such as energy offset, transverse displacement, e-beam distribution, space charge effect, also the dispersion of e-beam. This means that there are several ways to achieve dispersive electron cooling. In my talk, I will give theoretical and simulation studies on dispersive electron cooling, and explain how these factors affect cooling rates. Based on the simple linear cooling force, a formula for estimating the cooling rate redistribution is also presented.

Slides THPAM1R1 [2.667 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-COOL2023-THPAM1R1

About •

Received ※ 13 October 2023 — Accepted ※ 03 November 2023 — Issued ※ 02 December 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPOSRP18

Simulation Study of a Multi-Stage Rectilinear Channel for Muon Cooling

91

R.H. Zhu, J.C. Yang, H. Zhao
IMP/CAS, Lanzhou, People’s Republic of China
C.T. Rogers
STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom

The muon collider has the potential to be the most powerful tool for the exploration of frontiers in particle physics. In order to reach the high luminosity, the 6D emittance of the muon beam needs to be reduced by several orders of magnitude. Ionization cooling, which has recently been demonstrated in 4D by the Muon Ionization Cooling Experiment (MICE), is a promising cooling method for the muon beam. In the future, muon production and 6D ionization cooling experiments are planned at the High Intensity Accelerator Facility (HIAF) at the Institute of Modern Physics, Chinese Academy of Sciences (IMP, CAS). In this paper, a multi-stage rectilinear 6D ionization cooling channel is developed and the cooling simulation results using G4Beamline are presented, indicating good performance for muon beams with large emittance. This work serves as a good starting point for future research at HIAF.

Poster THPOSRP18 [0.327 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-COOL2023-THPOSRP18

About •

Received ※ 18 September 2023 — Revised ※ 11 October 2023 — Accepted ※ 12 October 2023 — Issued ※ 02 December 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)