Polarization of fast particle beams by collisional pumping

Patent · Tue Feb 09 04:00:00 EST 1988

OSTI ID:6356534

Stearns, J W; Kaplan, S N; Schlachter, A S; Pyle, R V; Anderson, L W; Ruby, L

A method for polarizing a fast beam of particles by collisional pumping, comprising the steps of: generating a beam of unpolarized ions; and generating an electron-spin-polarized medium of atoms positioned as a target for the beam. The target medium being sufficiently thick to allow the beam to interact with the medium to produce collisional pumping by repeated charge-changing collisions of the initially unpolarized ions of the beam with the electron-spin-polarized atoms of the target to produce a succession of electron-capture and electron-loss collisions to pump both the electron-spin and nuclear-spin polarization of the beam up to substantially the electron-spin polarization of the target.

• Assignee: Dept. of Energy, Washington, DC
• Patent Number(s): US 4724117
• OSTI ID: 6356534
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
ATOMS
BEAMS
CHARGED PARTICLES
COLLISIONS
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
IONS
LEPTONS
ORIENTATION
PARTICLE BEAMS
POLARIZATION
POLARIZED BEAMS
POLARIZED TARGETS
PUMPING
SPIN ORIENTATION
TARGETS