RESEARCH ON SOLID STATE RADIATION-INDUCED PHENOMENA

Abstract

Fluorescent Solutions with Short ecay Times: The fluorescence decay times in solution of four substituted p-oligo-phenylenes are reported. The times are found to be shorter than those of other efficient scintillator solutes. Preparation of Organic Mixed Crystals: Mixed crystals were prepared by the Bridgman method. Several clear or almost clear crystals with less than 0.5 weight percent initial dosage of guest substances were obtained for each combination. Distributions of concentrations in the mixed crystals are not homogeneous but increase gradually from the bottom to the top. The middle parts have almost homogeneous concentration but their values are much less than average concentrations. Emission spectra were measured on anthracene-in-naphthalene crystals of various concentrations. Simultaneous Luminescence and Impedance Measurements of ZnS Phosphors under Illumination with X-Rays: Conductivity and light experiments have been continued on two ZnS phosphors, one activated with copper, the other with silver. In addition, conductivity and light experiments have been carried out on a CaF2 phosphor. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1961
Accession Number
AD0264879

Entities

People

  • Hartmut Kallmann

Tags

DTIC Thesaurus Topics

  • Aromatic Polycyclic Hydrocarbons
  • Conductivity
  • Emission
  • Emission Spectra
  • Fluorescence
  • Illumination
  • Impedance
  • Luminescence
  • Measurement
  • Naphthalenes
  • Optical Phenomena
  • Phosphors
  • Radiation
  • Scintillation Counters
  • Spectra
  • X Rays

Readers

  • Chemistry (specifically Chemical Fluorescence)
  • Materials Science and Engineering.
  • Nuclear and Radiation Engineering.