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Title: Closed cycle cryogenic fiber extrusion system

Abstract

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.}

Authors:
; ; ; ;  [1]
  1. Institute of Geophysics and Planetary Physics, University of California, Riverside, California 92521 (United States)
Publication Date:
OSTI Identifier:
385890
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 67; Journal Issue: 10; Other Information: PBD: Oct 1996
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION; THERMONUCLEAR FUELS; EXTRUSION; HYDROGEN; DEUTERIUM; NITROGEN; FIBERS; CRYOGENICS; POSITIONING

Citation Formats

Rahman, H U, Ruden, E L, Strohmaier, K D, Wessel, F J, and Yur, G. Closed cycle cryogenic fiber extrusion system. United States: N. p., 1996. Web. doi:10.1063/1.1147171.
Rahman, H U, Ruden, E L, Strohmaier, K D, Wessel, F J, & Yur, G. Closed cycle cryogenic fiber extrusion system. United States. https://doi.org/10.1063/1.1147171
Rahman, H U, Ruden, E L, Strohmaier, K D, Wessel, F J, and Yur, G. 1996. "Closed cycle cryogenic fiber extrusion system". United States. https://doi.org/10.1063/1.1147171.
@article{osti_385890,
title = {Closed cycle cryogenic fiber extrusion system},
author = {Rahman, H U and Ruden, E L and Strohmaier, K D and Wessel, F J and Yur, G},
abstractNote = {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.}},
doi = {10.1063/1.1147171},
url = {https://www.osti.gov/biblio/385890}, journal = {Review of Scientific Instruments},
number = 10,
volume = 67,
place = {United States},
year = {Tue Oct 01 00:00:00 EDT 1996},
month = {Tue Oct 01 00:00:00 EDT 1996}
}