Oster, Gisela K. and Marcus, R. A. (1957) Exploding Wire as a Light Source in Flash Photolysis. Journal of Chemical Physics, 27 (1). pp. 189-192. ISSN 0021-9606 http://resolver.caltech.edu/CaltechAUTHORS:OSTjcp57a
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The exploding wire technique has been developed for use as a light source in flash photolysis. The method consists of discharging a bank of condensers, via a mechanical switch through a thin Nichrome wire. The wire explodes, emitting light rich in the ultraviolet region in less than a millisecond. The luminous efficiency in the 200 to 330 mµ region is of the order of 10% of the input. The minimum electrical energy input necessary to produce an explosion is equal to the energy required to vaporize the wire. The light output of the exploding wire as measured by uranyl oxalate actinometry and acetone photolysis is proportional to the electrical energy input. It was found to be highly reproducible. It was further observed that the exploding wire behaves as a line source. Because of the absence of a quartz or Pyrex tube in this source, it may find application in the far as well as in the near ultraviolet and in the visible spectral regions.
|Additional Information:||Copyright © 1957 American Institute of Physics. Received December 6, 1956. Abstracted from a dissertation submitted by Gisela K. Oster in partial fulfillment for the degree of Doctor of Philosophy, Polytechnic Institute of Brooklyn, June 1956. [G.K.O. was a] Socony-Vacuum Fellow (1953-1954); Research Fellow (1954-1955) under Contract No. Nonr 839(09).|
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|Deposited On:||13 Aug 2008 23:01|
|Last Modified:||26 Dec 2012 10:13|
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