A PERFORMANCE STUDY OF MINIATURE GLASS DOSIMETERS

Technical Report · Mon Oct 24 04:00:00 EDT 1960

OSTI ID:4696296

Bramson, P E

The Bausch and Lomb silver phosphate glass dosimetry system was studied for possible integration into the Hanford radiation dosimetry program. The 1 x 6 mm glass dosimeters (fluorods) are best suited for measurement of gamma exposure in the 5 to 1.5 x 10/sup 4/ r range. The fluorod exhibits considerable energy dependence for both gamma and beta radiation. Fast neutron and alpha sensitivity is negligible. Thermal neutron sensitivity is significantabout 1.4 times the 1 Mev gamma sensitivity. The fluorod is essentially dose rate independent, directional independent, temperature independent and has a very low background fluorescence. Maximum fluorescence of an exposed fluorod is attained within about three hours after exposure. Fading reduces the fluorescence to about 70% of its maximum value in 120 days. Exposed fluorods can be reclaimed by heat annealing. The dose range of the fluorod and the simplicity of the measurement technique makes it especially adaptable for rapid evaluation of high gamma doses. (auth)

• Research Organization: General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
• DOE Contract Number: AT(45-1)-1350
• NSA Number: NSA-17-027683
• OSTI ID: 4696296
• Report Number(s): HW-66728
• Country of Publication: United States
• Language: English

Related Subjects

ALPHA PARTICLES
BACKGROUND
BETA PARTICLES
DOSEMETERS
FLUORESCENCE
GAMMA RADIATION
GLASS
INSTRUMENTS AND INSTRUMENTATION
NEUTRONS
PERFORMANCE
SENSITIVITY
SILVER PHOSPHATES
THERMAL NEUTRONS