Design of an electrostatic magnetic quadrupole accelerator

Journal Article · Sun Jan 31 23:00:00 EST 1993 · Review of Scientific Instruments; (United States)

DOI:https://doi.org/10.1063/1.1144218· OSTI ID:5523980

Mizuno, M; Ohara, Y ^[1]

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1. Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki-ken 311-01 (Japan)

A new type of electrostatic acceleration system, electrostatic magnetic quadrupole (ESMQ) acceleration system, is proposed for efficient acceleration of negative ion beams. In this system, permanent magnets are buried in the acceleration electrodes so as to produce a quadrupole magnetic field in the electrode aperture region. Envelope simulation indicates that the quadrupole field can deflect electrons stripped from the negative ions. Beam envelope simulations for deuterium ions and electrons have been carried out using the beam envelope code TRACE. Electrons are largely divergent and most appear likely to hit downstream electrodes. Furthermore, maximum beam divergence of the deuterium ions is reduced to the focusing effect of the quadrupole magnetic field.

• OSTI ID: 5523980
• Journal Information: Review of Scientific Instruments; (United States), Journal Name: Review of Scientific Instruments; (United States) Vol. 64:2; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430100* -- Particle Accelerators-- Design
Development
& Operation
430200 -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
ACCELERATORS
BEAM DYNAMICS
BEAM OPTICS
BEAMS
CLOSED CONFIGURATIONS
DESIGN
ELECTROSTATIC ACCELERATORS
ION BEAMS
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELDS
MULTIPOLAR CONFIGURATIONS
QUADRUPOLAR CONFIGURATIONS