Accession Number : ADA207446

Title :   The Demonstration of the Feasibility of the Tuning and Stimulation of Nuclear Radiation.

Descriptive Note : Final rept. 1 Jul 81-31 Oct 88,

Corporate Author : TEXAS UNIV AT DALLAS RICHARDSON

Personal Author(s) : Collins, Carl B

PDF Url : ADA207446

Report Date : 31 Oct 1988

Pagination or Media Count : 252

Abstract : A major effect was found that had defied the constructi on of a completely satisfactory explanation in terms involving only conventional processes of incoherent excitation. It was the generation of radiofrequency sidebands on the hyperfine Moessbauer spectra of Fe57 in ferromagnetic environments. Through the application to a ferromagnetic iron foil of a magnetic field oscillating at radiofrequencies, several new spectral lines were produced in addition to the usual six hyperfine components of the 14.4 keV transition in Fe57. A persistent complication arose from the geometry in which the radiofrequency H field was generally applied in the plane of the absorber foil, so that magnetostriction occurred in the direction perpendicular to the axis of propagation of the gamma-radiation. Very significant was the result that unlike the paramagnetic case this new model predicted a dependence of sideband intensity upon power that was drastically different from the magnetostrictive theories. Even more significant was that the new multiphoton model of nuclear sidebands was comprehensive enough to suggest new extrapolations and effects not previously apparent. The most exciting was the extensive range over which sidebands might be tuned. (jhd)

Descriptors :   *NUCLEAR RADIATION, ENVIRONMENTS, EXCITATION, EXTRAPOLATION, FERROMAGNETIC MATERIALS, FOILS(MATERIALS), INCOHERENT SCATTERING, INTENSITY, IRON, MAGNETIC FIELDS, MAGNETOSTRICTION, MODELS, PARAMAGNETISM, PHOTONS, RADIOFREQUENCY, SIDEBANDS, SPECTRAL LINES, STIMULATION(GENERAL), THEORY, TUNING

Subject Categories : Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE