Particle beam generator using a radioactive source

Patent · 30 March 1993

OSTI ID:6278470

Underwood, D G

The apparatus of the present invention selects from particles emitted by a radioactive source those particles having momentum within a desired range and focuses the selected particles in a beam having at least one narrow cross-dimension, and at the same time attenuates potentially disruptive gamma rays and low energy particles. Two major components of the present invention are an achromatic bending and focusing system, which includes sector magnets and quadrupole, and a quadrupole doublet final focus system. Permanent magnets utilized in the apparatus are constructed of a ceramic (ferrite) material which is inexpensive and easily machined.

• DOE Contract Number: W-31109-ENG-38
• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): A; US 5198674
• Application Number: PPN: US 7-798782
• OSTI ID: 6278470
• Country of Publication: United States
• Language: English

Related Subjects

661220* -- Particle Beam Production & Handling
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAM BENDING MAGNETS
BEAM FOCUSING MAGNETS
BEAM PRODUCTION
BEAMS
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC RADIATION
ELECTROMAGNETS
EQUIPMENT
GAMMA RADIATION
IONIZING RADIATIONS
MAGNETS
MULTIPOLES
PARTICLE BEAMS
PERMANENT MAGNETS
QUADRUPOLES
RADIATIONS
RADIOACTIVITY
Ta
Targets-- (1992-)