Quench propagation ignition using single-mode diode laser

The stability of NbTi-based multifilamentary composite wires subjected to local heat disturbances of short durations is studied in pool boiling helium conditions. A new type of heater is being developed to characterize the superconducting to normal state transition. It relies on a single-mode Diode...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2005-06, Vol.15 (2), p.3648-3651
Main Authors: Trillaud, F., Ayela, F., Devred, A., Fratini, M., Leboeuf, D., Tixador, P.
Format: Article
Language:English
Subjects:
Applied sciences
Boiling
Diode lasers
Diodes
Electric potential
Electric power
Electrical engineering. Electrical power engineering
Electronics
Engineering Sciences
Exact sciences and technology
Heaters
Heating equipment
Ignition
Materials
Miscellaneous
Multifilamentary superconductors
Optical fibers
Optical propagation
Paper technology
Quench energy
quench propagation velocity
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
single-mode diode laser
Stability
Superconducting devices
Superconducting filaments and wires
superconducting wires
Superconductivity
Surface emitting lasers
Various equipment and components
Wire
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Summary:The stability of NbTi-based multifilamentary composite wires subjected to local heat disturbances of short durations is studied in pool boiling helium conditions. A new type of heater is being developed to characterize the superconducting to normal state transition. It relies on a single-mode Diode Laser with an optical fiber illuminating the wire surface. This first paper focuses mainly on the feasibility of this new heater technology and eventually discusses the difficulties related to it. A small overview of Diode Lasers and optical fibers revolving around our application is given. Then, we describe the experimental setup, and present some recorded voltage traces of transition and recovery processes. In addition, we present also some energy and Normal Zone Propagation Velocity data and we outline ameliorations that will be done to the system.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2005.849381