A MUON COOLING RING WITH LITHIUM LENSES

2005 ◽  
Vol 20 (16) ◽  
pp. 3857-3860
Author(s):  
YASUO FUKUI ◽  
DAVID B. CLINE ◽  
ALPER A. GARREN ◽  
HAROLD G. KIRK
Keyword(s):  
Phase Space ◽  
Storage Ring ◽  
Particle Tracking ◽  
Element Model ◽  
Low Energy ◽  
Magnetic Element ◽  
Space Cooling ◽  
Dimensional Phase Space ◽  
Transverse Emittance ◽  
Phase Space Cooling

We discuss particle tracking simulations in a storage ring with Lithium lens inserts designed for the transverse phase space cooling of muons by the ionization cooling. In a hard-edged magnetic element model, we demonstrate the equilibrium normalized transverse emittance of 0.3 mm*rad which is necessary for a Higgs Factory, a low energy mu+mu- Collider. For the 6 dimensional phase space cooling of muons, a method of using bent Lithium lenses were discussed.

scholarly journals Hrem Of General And Twist Grain Boundaries

1999 ◽  
Vol 5 (S2) ◽  
pp. 108-109
Author(s):  
K. L. Merkle ◽  
L. J. Thompson
Keyword(s):  
Thin Film ◽  
Electron Beam ◽  
Phase Space ◽  
Grain Boundaries ◽  
Scale Structure ◽  
Zone Axis ◽  
Low Energy ◽  
Atomic Scale ◽  
Dimensional Phase Space ◽  
Scale Structures

The observation of atomic-scale structures of grain boundaries (GBs) via axial illumination HREM has been largely restricted to tilt GBs, due to the requirement that the electron beam be parallel to a low-index zone axis on both sides of the interface. This condition can be fulfilled for all tilt GBs with misorientation about a low-index direction. The information obtained through HREM studies in many materials has brought important insights concerning the atomic-scale structure of such boundaries. However, it is well known that tilt GBs occupy only an infinitesimally small fraction of the 5-dimensional phase space which describes the macroscopic geometry of all GBs. Therefore, although tilt GBs are very important due to their low energy, it would be usefulto also study twist GBs and general GBs that contain twist and tilt components.We have prepared thin-film Au samples by an epitaxy technique in which (01l) and (001) grains are grown side by side.

scholarly journals muCool: muon cooling for high-brightness μ+ beams

2021 ◽  
Author(s):  
Aldo Antognini ◽  
David Taqqu
Keyword(s):  
Phase Space ◽  
Particle Physics ◽  
Muon Beam ◽  
Fundamental Particle ◽  
High Brightness ◽  
The Poor ◽  
Cooling Method ◽  
Space Cooling ◽  
Phase Space Cooling

A number of experiments with muons are limited by the poor phase space quality of the muon beams currently available. The muCool project aims at developing a phase-space cooling method to transform a surface \mu^+μ+ beam with 4 MeV energy and 1 cm size into a slow muon beam with eV energy and 1 mm size. In this process the phase space is reduced by a factor of 10^{9}-10^{10}109−1010 with efficiencies of 2\cdot 10^{-5}-2\cdot 10^{-4}2⋅10−5−2⋅10−4. The beam is then re-accelerated to keV-MeV energies. Such a beam opens up new avenues for research in fundamental particle physics with muons and muonium atoms as well as in the field of \muμSR spectroscopy.

scholarly journals MICE: The International Muon Ionization Cooling Experiment: Phase Space Cooling Measurement

2010 ◽  
Author(s):  
T. L. Hart ◽  
Daniel Kaplan ◽  
Maury Goodman ◽  
Zack Sullivan ◽  
Keyword(s):  
Phase Space ◽  
Space Cooling ◽  
Phase Space Cooling
Sign in / Sign up

Export Citation Format

Share Document