Production of spin polarized fusion fuels
The method is described of producing polarized deuterons in solid HD that includes the steps of providing a sample of HD containing a 10/sup -4/ to 10/sup -3/ concentration (mole fraction) of rho-D/sub 2/, irradiating the sample with radiation that produces defect centers in the sample for increasing the conversion rate of rho-D/sub 2/ to o-D/sub 2/, subjecting the sample simultaneously to a magnetic field greater than 10 Telsa and a temperature less than 10 m/sup 0/K. such that the H/sub O//T ratio is in a range of between 1000 and 7500 T//sup 0/K. corresponding to a deuteron polarization range of 20% to 90%, and allowing rho-D/sub 2/ to convert to o-D/sub 2/ to increase the relaxation time of the polarized deuterons at ordinary liquid helium temperatures of 1/sup 0/-4/sup 0/K. and low magnetic fields of about 0.1 Telsa. The method is also described of producing polarized tritons in solid HT that includes the steps of epitaxially depositing alternate layers of HT having a thickness of about 1 ..mu..m on thicker layers of solid HD at temperatures 0.3 to 4/sup 0/K. wherein the protons in the HD are polarized and the deuterons are either polarized or unpolarized, allowing the proton polarization in the HD layer to diffuse to polarize the protons in the HT layers through spin diffusion, placing the layers in a radio frequency field, and radiating the layers with radio frequencies to induce partially forbidden transitions between the polarized proton and the unpolarized triton coupled energy levels to polarize the tritons directly.
- Assignee:
- Syracuse Univ., Syracuse, NY
- Patent Number(s):
- US 4642206
- OSTI ID:
- 6689828
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
700205* -- Fusion Power Plant Technology-- Fuel
Heating
& Injection Systems
ANGULAR MOMENTUM
BARYONS
CHARGED PARTICLES
DEUTERIDES
DEUTERIUM COMPOUNDS
DEUTERONS
DIFFUSION
DIMENSIONS
ELEMENTARY PARTICLES
ELEMENTS
EPITAXY
FERMIONS
FLUIDS
FUELS
GASES
HADRONS
HELIUM
HYDROGEN COMPOUNDS
HYDROGEN DEUTERIDE
HYDROGEN TRITIDE
IRRADIATION
LABELLED COMPOUNDS
LIQUEFIED GASES
MAGNETIC FIELDS
NONMETALS
NUCLEONS
PARTICLE PROPERTIES
POLARIZATION
PROTONS
RARE GASES
RF SYSTEMS
SPIN
THERMONUCLEAR FUELS
THICKNESS
TRITIUM COMPOUNDS
TRITONS
ULTRALOW TEMPERATURE