Fusion with highly spin polarized HD and D sub 2
- Syracuse Univ., NY (USA). Dept. of Physics
- Rochester Univ., NY (USA). Lab. for Laser Energetics
During the course of this grant, we succeeded in overcoming essentially all of the obstacles on the route to carrying out ICF shots with polarized deuteron fuel in plastic target shells. ICF with polarized deuterons is expected to answer the question of survival of polarization in the high temperature plasma prior to fusion, as well as to give quantitative information on anisotropic particle emissions and possible suppression of particular fusion reactions. The techniques previously developed for high D polarization in large solid HD samples have been adapted to polystyrene target shells which are cooled conductively via very thin metal wire supports. An independent NMR experiment on a normal-D{sub 2}-filled glass target shell with 2 {mu}m copper-coated spider silk supports affirmed the thermal conduction adequacy by registering very low sample temperatures in the presence of the generation of considerable D{sub 2} conversion heat. In a permeation experiment employing very pure ortho-D{sub 2}, it was demonstrated that hydrogens diffuse into polystyrene shells at room temperature without molecular dissociation, a requirement for preservation of the composition of our HD samples used for polarization. An advanced version of the permeation apparatus was designed and constructed which permits preparation of target shells loaded with very high density HD or D{sub 2} fuels. That system includes provision for cryocondensation and cold-transfer either to the dilution refrigerator for polarization or to the OMEGA fusion chamber for ICF experiments with denser unpolarized fuel targets than were heretofore realizable in plastic target shells. a major effort resulted in improvements of cold-transfer inter-apparatus mating procedures which minimize the temperature rise of the target shells over that of the helium reservoir temperature. High D polarization in solid pure 0-D{sub 2} was shown to be retained into the liquid state after rapid melting.
- Research Organization:
- Syracuse Univ., NY (USA). Dept. of Physics
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (USA)
- DOE Contract Number:
- FG03-90SF18437
- OSTI ID:
- 5603745
- Report Number(s):
- DOE/SF/18437-T2; ON: DE91014178
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
700208* -- Fusion Power Plant Technology-- Inertial Confinement Technology
ACCELERATOR FACILITIES
CONFINEMENT
DEUTERIUM
DOCUMENT TYPES
FUELS
HYDROGEN ISOTOPES
INERTIAL CONFINEMENT
ISOTOPES
LASER TARGETS
LIGHT NUCLEI
MATERIALS
NUCLEI
ODD-ODD NUCLEI
OMEGA FACILITY
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORIENTATION
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASMA CONFINEMENT
PLASTICS
POLARIZED TARGETS
POLYMERS
POLYOLEFINS
POLYSTYRENE
POLYVINYLS
PROGRESS REPORT
SPIN ORIENTATION
STABLE ISOTOPES
SYNTHETIC MATERIALS
TARGET CHAMBERS
TARGETS
TEMPERATURE DEPENDENCE
THERMONUCLEAR FUELS