Abstracts Brochure - CERN

WEPLS010
WEPLS011
WEPLS012
WEPLS013
28-Jun-06 16:00 - 18:00 WEPLS — Poster Session
20 and 50 GeV Muon Storage Rings for a Neutrino Factory
Muon decay ring studies are being under-
G. Rees (CCLRC/RAL/ASTeC) C. Johnstone (Fermilab)
taken as part of the International Scoping
Study (ISS) for a Neutrino Factory. A racetrack
and an isosceles triangle shaped ring are under design, initially for a muon energy of 20 GeV, but with an upgrade
potential for 50 GeV. Both rings are designed with long straights to optimize directional muon decay. The neutrinos
from the muon decays pass to one or two distant detectors; the racetrack ring has one very long production straight,
aligned with one detector, while the triangular ring has two straights, each half as long, which can be aligned with
two detectors. Lattice studies, injection, collimation, and RF system design for the large acceptance, high intensity
rings are discussed and the performance of the two rings compared.
General Design Considerations for a High-intensity Muon Storage Ring for a Neutrino
Factory
Muon decay ring design, shielding, and com-
C. Johnstone (Fermilab) G. Rees (CCLRC/RAL/ASTeC)
patibility with potential neutrino detector
sites are a critical part of the International
Scoping Study (ISS) for a neutrino factory. Two rings are under development: a racetrack and an isosceles-triangle
ring initially for muon energy of 20 GeV, but upgradable to 50 GeV. Neutrinos from the muon decays in specially
designed production straights can be directed to one or two distant detectors; the racetrack ring has one very long
production straight, aligned with one detector, while the triangular ring has two straights, each half as long, aligned
with two detectors. An initial site survey of accelerators and distant detectors has been made, along with the required
tilt angles from the horizontal will be discussed here. (Lattice studies, injection, collimation, and RF system design are
covered in a separate contribution to these proceedings.) Heating and activation effects of beam loss in the chamber
walls and components will also be presented.
Use of Gas-filled Cavities in Muon Capture for a Muon Collider or Neutrino Factory
Recent studies indicate that gas-filled cavi-
D.V. Neuffer (Fermilab) K. Paul (Muons, Inc)
ties can provide high-gradient acceleration
and simultaneous cooling for muons. In this
paper we explore using these cavities in the front-end of the capture and cooling systems for muon colliders and
neutrino factories. For a muon collider scenario we consider capturing the beam in a low-frequency cavity (∼50 MHz)
and cooling immediate after capture. For a neutrino factory, we consider capturing beam in high-frequency buckets
and phase-energy rotating and cooling them using gas-filled rf cavities. Scenario variants are described and studied.
The Fermilab Proton Driver for Muon Experiments and a Neutrino Factory
The Fermilab Proton Driver, an 8 GeV Linac
D.V. Neuffer (Fermilab)
that can accelerate up to 1.5’1014 protons/
pulse at 10 Hz, will enable a new generation
of high-intensity experiments, including neutrino superbeams, muon storage ring based neutrino factories, and mue
conversion experiments. A neutrino factory requires intense bunches of protons, and these must be obtained by
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