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Title: Target and collection optimization for muon colliders

To achieve adequate luminosity in a muon collider it is necessary to produce and collect large numbers of muons. The basic method used in this paper follows closely a proposed scheme which starts with a proton beam impinging on a thick target ({approximately} one interaction length) followed by a long solenoid which collects muons resulting mainly from pion decay. Production and collection of pions and their decay muons must be optimized while keeping in mind limitations of target integrity and of the technology of magnets and cavities. Results of extensive simulations for 8 GeV protons on various targets and with various collection schemes are reported. Besides muon yields results include-energy deposition in target and solenoid to address cooling requirements for these systems. Target composition, diameter, and length are varied in this study as well as the configuration and field strengths of the solenoid channel. A curved solenoid field is introduced to separate positive and negative pions within a few meters of the target. This permits each to be placed in separate RF buckets for acceleration which effectively doubles the number of muons per bunch available for collisions and increases the luminosity fourfold.
Authors:
; ;
Publication Date:
OSTI Identifier:
226256
Report Number(s):
FNAL/C-96/006; CONF-9510295-8
ON: DE96005306; TRN: 96:014224
DOE Contract Number:
AC02-76CH03000
Resource Type:
Conference
Resource Relation:
Conference: 9. advanced ICFA beam dynamic workshop: beam dynamics and technology issues for Mu{sup +}Mu{sup -} colliders, Montauk, NY (United States), 15-20 Oct 1995; Other Information: PBD: 10 Jan 1996
Research Org:
Fermi National Accelerator Lab., Batavia, IL (United States)
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; MUON BEAMS; BEAM PRODUCTION; TARGETS; DESIGN; COPPER; PIONS; KAONS; PROTONS; ENERGY ABSORPTION; SOLENOIDS