Epicyclic Twin-helix Magnetic Structure for Parametric-resonance Ionization Cooling

Conference · Sat May 01 00:00:00 EDT 2010

OSTI ID:1020728

A. Afanasev, R.P. Johnson, Y.S. Derbenev, V.S. Morozov

Para­met­ric-res­o­nance Ion­iza­tion Cool­ing (PIC) is en­vi­sioned as the final 6D cool­ing stage of a high-lu­mi­nos­i­ty muon col­lid­er. Im­ple­ment­ing PIC im­pos­es strin­gent con­straints on the cool­ing chan­nel's mag­net­ic op­tics de­sign. This paper pre­sents a lin­ear op­tics so­lu­tion com­pat­i­ble with PIC. Our so­lu­tion con­sists of a su­per­po­si­tion of two op­po­site-he­lic­i­ty equal-pe­ri­od and equal-strength he­li­cal dipole har­mon­ics and a straight nor­mal quadrupole. We demon­strate that such a sys­tem can be ad­just­ed to meet all of the PIC lin­ear op­tics re­quire­ments while re­tain­ing large ac­cep­tance.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1020728
• Report Number(s): JLAB-ACP-11-1346; DOE/OR/23177-1607; TRN: US1103776
• Resource Relation: Conference: IPAC'10, 23-28 May 2010, Kyoto, Japan
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM COOLING
BEAM OPTICS
DIPOLES
HARMONICS
HELICITY
IONIZATION
LINEAR COLLIDERS
MUON BEAMS
MUONS
RESONANCE