Closed cycle cryogenic fiber extrusion system
- Institute of Geophysics and Planetary Physics, University of California, Riverside, California 92521 (United States)
A fiber extrusion system is described that produces frozen fibers of almost any condensible gas. This extruder has the advantage of employing a closed-refrigeration system. To date, this system has produced fibers of H{sub 2}, D{sub 2}, and Ne of a diameter ranging from 100 to 130 {mu}m. The extrusion occurs at a specific temperature which is several degrees below the triple point of these gases. Once the fiber is extruded it can survive in vacuum for 20 min if the nozzle (extrusion) temperature is lowered to 8 K. The length of these fibers can be of the order of 1 m. D{sub 2} fibers will be used in a staged {ital Z}-pinch experiment as a fuel for thermonuclear fusion. For this application a guiding structure is needed to position the fiber between the electrodes with millimeter precision, without significantly affecting its quality. {copyright} {ital 1996 American Institute of Physics.}
- OSTI ID:
- 385890
- Journal Information:
- Review of Scientific Instruments, Vol. 67, Issue 10; Other Information: PBD: Oct 1996
- Country of Publication:
- United States
- Language:
- English
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