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Title: Elliptical Muon Helical Cooling Channel Coils

A helical cooling channel (HCC) consisting of a pressurized gas absorber imbedded in a magnetic channel that provides solenoid, helical dipole and helical quadrupole fields has shown considerable promise in providing six-dimensional phase space reduction for muon beams. The most effective approach to implementing the desired magnetic field is a helical solenoid (HS) channel composed of short solenoid coils arranged in a helical pattern. The HS channel along with an external solenoid allows the B$$_z$$ and B$$_{\phi}$$ components along the reference orbit to be set to any desired values. To set dB$$_{\phi}$$/dr to the desired value for optimum focusing requires an additional variable to tune. We shall show that using elliptical shaped coils in the HS channel allows the flexibility to achieve the desired dB$$_{\phi}$$/dr on the reference orbit without significant change to B$$_z$$ and B$$_{\phi}$$.
Authors:
 [1] ;  [1] ;  [2] ;  [2]
  1. MUONS Inc., Batavia
  2. Fermilab
Publication Date:
OSTI Identifier:
1327268
Report Number(s):
PAC-2013-THPBA26; FERMILAB-CONF-13-700-AD-TD
1329075
DOE Contract Number:
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: 1st North American Particle Accelerator Conference, Pasadena, CA, USA, 09/29-10/04/2013
Research Org:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS