DOSIMETRY BY SOLID STATE DEVICES

Technical Report · Fri Jun 15 04:00:00 EDT 1962

OSTI ID:4795112

Attix, F H

Any material which has a conveniently measurable parameter that varies as a function of the absorbed dose (or absorbed dose rate) deposited by ionizing radiation in the material can serve as the basis for a dosimetry system. A number of solid materials were investigated as dosimeters and found to be useful in various applications. The principal systems reported in the literature to date were based upon the following phenomena: the change in coloration (or optical density at a given visible or uv wavelength) produced in glass, plastics, or crystals by the action of the ionizing radiation; the uv photoluminescence of silveractivated phosphate glass after exposure to ionizing radiation; the degradation of the uv-excited luminescence of certain phosphors due to the action of ionizing radiation; the thermally excited luminescence of certain materials which are capable of storing energy from ionizing radiation in stable trapping centers: the luminescence produced by stimulation (after exposure to ionizing radiation) with light of longer wavelength than that omitted; the temporary change in electrical conductivity of a crystal or p-n junction while exposed to ionizing radiation; the open-circuit voltage or short-circuit current resulting from the photovoltaic effect in a p-n junction while exposed to ionizing radiation; and permanent changes in the conductivity of a material due to lattice dislocations brought about by highenergy radiation. Scintillators represent another very important form of solid state dose-rate measuring device, but these were omitted in this study because of extensive treatment elsewhere. A survey of much of the material published to date on solid state dosimetry is presented. A bibliography of 120 references is included. (auth)

• Research Organization: Naval Research Lab., Washington, D.C.
• NSA Number: NSA-16-030586
• OSTI ID: 4795112
• Report Number(s): NRL-5777
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
CIRCUITS
COLOR
DOSEMETERS
ELECTRIC CONDUCTIVITY
ENGINEERING AND EQUIPMENT
FREQUENCY
GLASS
IONIZATION
LUMINESCENCE
MATERIALS TESTING
PHOSPHORS
PHOTOELECTRIC EFFECT
POLYMERS
RADIATION EFFECTS
SCINTILLATION COUNTERS
SEMICONDUCTORS
TEMPERATURE
ULTRAVIOLET RADIATION