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Threshold kinetic processes for t-C4F9ITo determine the relative threshold of the lasant gas t-C4F9I in comparison to n-C3F7I, the pump energy to reach threshold for photodissociation iodine lasing is measured in a common aparatus. The comparison is made for the threshold energies in the iodide pressure range up to 50 Torr when 64-J electric input into a flashlamp is used for pumping. It is shown from the results that qualitative differences between the thresholds of the two gases result from the degree to which steady state is achieved by the time threshold is reached. The estimated recombination rate for t-C4F9I is found to be much larger than the value given by Ershov et al (1978).
Document ID
19850053812
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lee, J. H.
(NASA Langley Research Center Hampton, VA, United States)
Wilson, J. W.
(NASA Langley Research Center Hampton, VA, United States)
Humes, D. H.
(NASA Langley Research Center Hampton, VA, United States)
Weaver, W. R.
(NASA Langley Research Center Hampton, VA, United States)
Enderson, T.
(NASA Langley Research Center Hampton, VA, United States)
Tabibi, B. M.
(NASA Langley Research Center; Hampton University Hampton, VA, United States)
Date Acquired
August 12, 2013
Publication Date
April 15, 1985
Publication Information
Publication: Optics Communications
Volume: 53
ISSN: 0030-4018
Subject Category
Lasers And Masers
Accession Number
85A35963
Funding Number(s)
CONTRACT_GRANT: NCC1-400
Distribution Limits
Public
Copyright
Other

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