Accession Number : ADA259475


Title :   IDA Gamma-Ray Laser Annual Summary Report (1990): Investigation of the Feasibility of Developing A Laser Using Nuclear Transitions


Descriptive Note : Final rept. Jan 91-Mar 92,


Corporate Author : INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA


Personal Author(s) : Balko, Bohdan ; Kay, Irvin W


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a259475.pdf


Report Date : Apr 1992


Pagination or Media Count : 66


Abstract : This paper compares two processes that can occur, under different conditions, in the same system of nuclei: amplified spontaneous emission (ASE) and superfluorescence (SF). It concludes that the (Trammell and Hannon) conditions for the occurrence of ASE are more restrictive than those for the occurrence of SF. Therefore, the conclusion by some authors based on an analysis of ASE, that coherent electromagnetic emission from a nuclear system is not feasible, is incorrect. The paper examines the feasibility of nuclear SF in 60Co. It concludes that SF will occur in the excited state obtained by thermal neutron pumping with fluxes ranging from 10.18 to 10.23 neutrons per second.


Descriptors :   *LASERS , *GAMMA RAYS , *NUCLEAR FLUORESCENT SCATTERING , LASER PUMPING , MONTE CARLO METHOD , STRATEGIC DEFENSE INITIATIVE , NUCLEAR STRUCTURE , NUCLEAR ISOMERS , GAMMA EMISSION , MOSSBAUER EFFECT , PUMPING(ELECTRONICS) , RADIATION ATTENUATION


Subject Categories : Lasers and Masers
      Nuclear Physics & Elementary Particle Physics


Distribution Statement : APPROVED FOR PUBLIC RELEASE