A laser-driven pellet accelerator for CTR fuel injection.
Hoy, Jeffrey Craig
Politzer, Peter A.
MetadataShow full item record
The high-speed ballistic injection of a solid spherical pellet of deuterium-tritium ice into a magnetically confined thermonuclear reactor plasma has been suggested as a technique of controlled thermonuclear reactor fueling. This experiment is intended to be a preliminary test of the feasibility of accelerating macroscopic fuel pellets using a pulsed ruby laser operating in the conventional mode. Pellet velocities in the range of 1,000-10,000 m/sec are required to enable the pellets to penetrate and effectively refuel the reactor plasma. In this study, cellulose acetate pellets were used to simulate deuterium-tritium fuel. When placed in a vacuum enclosed tube, they were accelerated by the reaction to the laser induced ablation cloud from the exposed half of the pellet. Pellet velocities of over 200 m/sec were achieved. The velocities were measured by stroboscopic photography, and the pellets were weighed to determine the fraction ablated.
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
Bloore, David A. (Monterey California. Naval Postgraduate School, 2013-06);High temparature tolerance, chemical stability and low neutron affinity make silicon carbide (SiC) a potential fuel cladding material that may improve the economics and safety of light water reactors (LWRs). "Thick" SiC ...
Hammerer, John J. (1988);Neutron irradiation of high temperature superconductors was performed in order to determine the effects of nuclear weapons on these novel materials. This radiation could also be encountered in space radiation belts, fusion ...
Hwang, Zen Wen (Monterey, California. Naval Postgraduate School, 1978);Laser-induced evaporation from a stainless steel surface was the laser-target damage mechanism which was studied. Infrared laser pulses with irradiances higher than 10⁹ W/cm² were produced by a Q-switched neodymium glass ...