Production of intense negative hydrogen beams with polarized nuclei by selective neutralization of negative ions
A process is described for selective neutralization of H/sup -/ ions in a magnetic field to produce an intense negative hydrogen ion beam with spin polarized protons, comprising: providing a multi-ampere beam of H/sup -/ ions; providing a beam of laser light, any photon of which has sufficient energy to photodetach one electron from any one of the H/sup -/ ions; providing a uniform solenoidal magnetic field around a portion of the length of the beam of H/sup -/ ions to effectively spin polarize the H/sup -/ ions in the beam, thereby to produce a first group of ions with proton spin aligned with the magnetic field and to produce a second group of ions with proton spin opposed to the magnetic field; directing the beam of laser light through the spin polarized beam of H/sup -/ ions to selectively neutralize the majority of the ions in one of the groups, without neutralizing the ions in the other group; and separating the one group of ions from the other group of ions, and directing the other group of ions in an intense H/sup -/ ion beam toward a predetermined objective.
- Assignee:
- Dept. of Energy, Washington, DC
- Patent Number(s):
- US 4654183
- OSTI ID:
- 6583855
- Resource Relation:
- Patent File Date: Filed date 13 Feb 1984
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GENERAL PHYSICS
HYDROGEN 1 MINUS BEAMS
BEAM PRODUCTION
ALIGNMENT
ANIONS
BEAM NEUTRALIZATION
ELECTRON DETACHMENT
ELECTRONS
LASER RADIATION
MAGNETIC FIELDS
NUCLEI
PHOTONS
PHOTONUCLEAR REACTIONS
POLARIZATION
PROTONS
SOLENOIDS
SPIN
ANGULAR MOMENTUM
BARYONS
BEAMS
CHARGED PARTICLES
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
EQUIPMENT
FERMIONS
HADRONS
ION BEAMS
IONS
LEPTONS
MASSLESS PARTICLES
NUCLEAR REACTIONS
NUCLEONS
PARTICLE PROPERTIES
RADIATIONS
640301* - Atomic
Molecular & Chemical Physics- Beams & their Reactions