Principles and Applications of Muon Cooling

Neuffer, D.

doi:10.2172/1156195

Cited by 142 publications

(140 citation statements)

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“… muons are created as a tertiary beam (p    ), which results in (i) a low production rate for usable muons and hence the need for a target that can tolerate multi-MW of protons; and (ii) a beam with a large energy spread and large phase space area and hence the need for emittance cooling and a high-acceptance acceleration system  muons have a very short lifetime (2.2 s at rest), which requires rapid beam manipulations and hence the need for ionization cooling [7] using high-gradient RF cavities in a magnetic field, followed by a very rapid acceleration system…”

Section: Neutrino Factorymentioning

confidence: 99%

Accelerator Challenges and Opportunities for Future Neutrino Experiments

Zisman¹

2011

AIP Conference Proceedings

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Abstract. There are three types of future neutrino facilities currently under study, one based on decays of stored betaunstable ion beams ("Beta Beams"), one based on decays of stored muon beams ("Neutrino Factory"), and one based on the decays of an intense pion beam ("Superbeam"). In this paper we discuss the challenges each design team must face and the R&D being carried out to turn those challenges into technical opportunities. A new program, the Muon Accelerator Program, has begun in the U.S. to carry out the R&D for muon-based facilities, including both the Neutrino Factory and, as its ultimate goal, a Muon Collider. The goals of this program will be briefly described.

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Section: Neutrino Factorymentioning

confidence: 99%

Accelerator Challenges and Opportunities for Future Neutrino Experiments

Zisman¹

2011

AIP Conference Proceedings

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“…1 . An intense source of either protons or electrons, at the energy of few tens of GeV with an average current of few hundreds of p,A, is provided with a conventional fast cycling accelerator [4][5][6][7][8]. In the case of electrons, these are bunched at a large frequency, for instance 3 GHz, and are accelerated in a large-gradient linear accelerator.…”

Section: The Muon Collidermentioning

confidence: 99%

A muon collider scenario based on stochastic cooling

Ruggiero

1994

Nuclear Instruments and Methods in Physics Research Section A:

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The most severe limitation to the muon production for a large-energy muon collider is the short time allowed for cooling the beam to dimensions small enough to provide reasonably high luminosity . The limitation is caused by the short lifetime of the particles that, for instance, at the energy of 100 GeV is of only 2.2 ms . Moreover, it appears to be desirable to accelerate the beam quickly, with very short bunches of about a millimeter so it can be made immediately available for the final collision.This paper describes the requirements of single-pass, fast stochastic cooling for very short bunches. Bandwidth, amplifier gain and Schottky power do not seem to be of major concern. Problems do arise with the ultimate low emittance that can be achieved, the value of which is seriously affected by the front-end thermal noise.Since mixing within the beam bunches is completely absent, methods are required for the regeneration of the beam signal with external and powerful magnetic lenses . The feasibility of these methods are crucial for the development of the muon collider . These methods will be studied in a subsequent report .

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“…The cooling of the transverse phase-space assumed in Table 1 is of the kind known as "ionization cooling" . In this scheme the beam transverse and longitudinal energy losses in passing through a material medium are followed by coherent reacceleration, resulting in beam phase-space cooling [2,5,7]. The cooling rate achievable is much faster than, although similar conceptually to, radiation damping in a storage ring in which energy losses in synchrotron radiation followed by rf acceleration result in beam phasespace cooling in all dimensions .…”

Section: Motivation and Challengesmentioning

confidence: 99%