Radiation dosimeter, color. Final report

Technical Report · Wed Jan 01 04:00:00 EST 1975

OSTI ID:7317567

McLaughlin, W L

Large doses (kilorads or greater) of ionizing radiation are known to change the hue, shade, or color saturation of many substances. Just as extended exposure to sunlight causes some plastics to darken or turn slightly yellow or brown, and other materials to bleach or change color ionizing radiations can cause even more radical changes in plastics, glasses, and certain dyed substances. As long as a critical portion of the resulting absorption spectrum or reflection spectrum is sufficiently stable and can be measured spectrophotometrically in a reproducible way, the material can be a useful dosimeter. The dosimetric response is given in terms of the change in optical transmission or reflection density, or change in percent transmittance or reflectance, at a given wavelength of light, as a function of the radiation absorbed dose in the material of interest. With this approach, any material susceptible to permanent radiation bleaching, color change, or radiolytic darkening may serve as a color radiation dosimeter.

• Research Organization: National Bureau of Standards, Washington, DC (USA)
• OSTI ID: 7317567
• Report Number(s): PB-254212
• Country of Publication: United States
• Language: English

Related Subjects

440102* -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CHEMICAL RADIATION EFFECTS
CHEMISTRY
COLORIMETRIC DOSEMETERS
DOSEMETERS
DYES
GLASS
MEASURING INSTRUMENTS
OPTICAL PROPERTIES
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PLASTICS
RADIATION CHEMISTRY
RADIATION EFFECTS
SPECTROPHOTOMETRY