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Title: Integration of RFQ beam coolers and solenoidal magnetic fields

Electromagnetic traps are a flexible and powerful method of controlling particle beams, possibly of exotic nuclei, with cooling (of energy spread and transverse oscillations) provided by collisions with light gases as in the Radio Frequency Quadrupole Cooler (RFQC). A RFQC prototype can be placed inside the existing Eltrap solenoid, capable of providing a magnetic flux density component B{sub z} up to 0.2 T, where z is the solenoid axis. Confinement in the transverse plane is provided both by B{sub z} and the rf voltage V{sub rf} (up to 1 kV at few MHz). Transport is provided by a static electric field E{sub z} (order of 100 V/m), while gas collisions (say He at 1 Pa, to be maintained by differential pumping) provide cooling or heating depending on V{sub rf}. The beamline design and the major parameters V{sub rf}, B{sub z} (which affect the beam transmission optimization) are here reported, with a brief description of the experimental setup.
Authors:
; ; ; ; ;  [1] ; ; ;  [2]
  1. INFN-LNL, viale dell’Universitá n.2, 35020 Legnaro (PD) (Italy)
  2. INFN-Sezione di Milano and Physics Department, University of Milano, Milano (Italy)
Publication Date:
OSTI Identifier:
22482993
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 87; Journal Issue: 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; COLLISIONS; CONFINEMENT; DESIGN; ELECTRIC FIELDS; FLUX DENSITY; GASES; HEAT EXCHANGERS; MAGNETIC FIELDS; MAGNETIC FLUX; MHZ RANGE 01-100; OPTIMIZATION; PARTICLE BEAMS; RADIOWAVE RADIATION; SOLENOIDS