Periodic permanent magnet field-transported relativistic electron beams

Journal Article · Thu Jan 01 04:00:00 EST 1987 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.338799· OSTI ID:6772762

Matsuzawa, H; Akitsu, T; Suzuki, Y; Fuki, S

The utility of periodic permanent magnet (PPM) focusing for transporting relativistic electron beams (REB) was demonstrated experimentally and these results were supported by REB trajectory simulations. The PPM field was made by a series of permanent toroidal Sm-Co magnets and pure iron-made spacers of alternate magnetic orientation along the axis of the REB. When a foilless beam diode was operated at a pressure of approximately 0.2 Torr of nitrogen gas with an applied voltage of 420 kV, the PPM focused and transported the REB (200 keV, 1.2 kA, 10-ns pulse width). About 12% of the energy charged at the high-voltage generator was converted to the REB. Optimization of the beam diode and PPM configuration was not attempted.

• Research Organization: Department of Electrical Engineering, Yamanashi University, Kofu 400, Japan
• OSTI ID: 6772762
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 61:1; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

640301* -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAMS
ELECTRON BEAMS
ENERGY RANGE
FABRICATION
FOCUSING
LEPTON BEAMS
MAGNETS
PARTICLE BEAMS
RELATIVISTIC RANGE
TRAJECTORIES
USES