A novel cryogenic fibre maker for continuous extrusion
- Blackett Laboratory, Imperial College, London (United Kingdom)
The results of a cryogenics fibre maker which extrudes fibres continuously are presented. The fibre maker is based on a simple concept of differential temperature. Two reservoirs are connected in cascade and are kept at different temperatures. The first reservoir is connected to an external gas line supply (the gas that will made the fibre) and is used to liquefy the gas. The second reservoir is colder that the first and the liquid that comes from the first reservoir is frozen and later is used to form the fibre. The pressure of external gas supply in the first reservoir is used to extrude the fibre. The system is cooled by a two stage closed cycle refrigerator, which uses liquid helium as a working fluid. The nozzles used to extrude the fibre are made of stainless steel capillary with diameters between 50 {mu}m and 250 {mu}m, with a length of 2 mm. The use of a system with two independent temperatures, permits to control the extrusion rate of the fibres and to produce the fibres continuously. Using this system, hydrogen deuterium, nitrogen and argon fibres of various diameters were extruded.
- OSTI ID:
- 21172383
- Journal Information:
- AIP Conference Proceedings, Vol. 409, Issue 1; Conference: 4. international conference on dense z-pinches, Vancouver, BC (Canada), 28-31 May 1997; Other Information: DOI: 10.1063/1.53914; (c) 1997 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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