Title :
GEANT4 simulation and theoretical studies of a helical cooling channel
Author :
Balbekov, V. ; Elvira, V.D. ; Lebrun, P. ; Spentzouris, P.
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL, USA
Abstract :
We present a conceptual design and detailed GEANT4 simulation of a helical ionization cooling channel proposed by Ya. Derbenev, which is able to cool in 3 dimensions (3-D). The lattice of the channel consists of a long solenoid (B=5 T, L=72 m, R=70 cm) and a transverse dipole magnetic field which rotates with a period of 1.8 m and an amplitude of 0.3 T. The cooling is achieved using lithium hydride wedge absorbers. Re-acceleration is performed by 201.25 MHz RF cavities which provide a 6.2 MeV per cooling cell. The parameters of the muon beam at the end of the channel are: transmission 85%, transverse and longitudinal emittances 0.6 cm and 2 cm, respectively
Keywords :
accelerator RF systems; accelerator cavities; accelerator magnets; electromagnets; high energy physics instrumentation computing; 0.3 T; 140 cm; 201.25 MHz; 5 T; 72 m; GEANT4 simulation; LiH; RF cavities; conceptual design; helical cooling channel; ionization cooling channel; long solenoid; transverse dipole magnetic field; wedge absorbers; Cooling; Ionization; Lattices; Linear accelerators; Lithium; Magnetic fields; Mesons; Neutrino sources; Radio frequency; Solenoids;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.988282
