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Considerations to achieve directionality for gamma ray lasersA method of alignment of nuclei for a gamma ray laser and a means of achieving preferential emission of radiation along the crystal axis are studied. Atomic alignment was achieved by materials researchers who made composite structures composed of needle-like single crystals all with the same orientation and all pointing in the same direction contained in a matrix of cobalt or nickel. The proposed method of preferential emission of radiation along the aligned needles is to have a symmetric field gradient at the nucleus and a sequence of excited levels of spin and parity 2(+) and 0(+). The proposed scheme reduces the density of excited states required for lasing and reduces the linewidth due to inhomogenous broadening. Mossbauer absorption experiments intended to test these ideas are outlined.
Document ID
19780018927
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Jha, S.
(Cincinnati Univ. Cleveland, OH, United States)
Blue, J. W.
(NASA Lewis Research Center)
Date Acquired
August 9, 2013
Publication Date
September 1, 1976
Publication Information
Publication: Princeton Univ. Partially Ionized Plasmas, Including the 3rd Symp. on Uranium Plasmas
Subject Category
Lasers And Masers
Accession Number
78N26870
Funding Number(s)
CONTRACT_GRANT: NSG-3091
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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