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Direct nuclear excitation of a He-3 - CO2 gas mixtureProbe measurements using a continuous wave CO2 laser have been carried out on a He-3 - CO2 gas mixture directly excited by the He-3(n,p)H-3 reaction. At a gas pressure of 1 atm and thermal neutron flux up to 10 to the 17th n/sq cm sec, total extinction of the probe beam was observed. Addition of N2 to the gas mixture (up to 20%) produced a media such as is used in electric discharge CO2 lasers. However, this mixture produced the same results as the He-3 - CO2 mixture. Absorption of the laser beam indicates that with direct nuclear excitation, it is the lower laser level which is excited. Therefore direct nuclear pumping of a CO2 laser does not appear feasible.
Document ID
19810058873
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Jalufka, N. W.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 11, 2013
Publication Date
August 1, 1981
Publication Information
Publication: Applied Physics Letters
Volume: 39
Subject Category
Lasers And Masers
Accession Number
81A43277
Distribution Limits
Public
Copyright
Other

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