Division of instrumentation. Solid state dosimetry

Journal Article · Wed Feb 01 04:00:00 EST 1961 · Transactions of the New York Academy of Sciences

DOI:https://doi.org/10.1111/j.2164-0947.1961.tb01363.x· OSTI ID:4817574

Amato, Charles G.; Malsky, Stanley J.; Roswit, Bernard

Design features are described for a small radiation dosimeter comprised of a glass host matrix and a silver fluorescent activator. The absorption of ionizing radiation causes the ionization of Ag₃(PO₃). A photochemical reaction then reduces ionic silver to metallic silver. Metallic silver emits an orange-yellow fluorescence that is directly proportional to the radiation exposure and can be converted into an electrical signal through the use of an optical bypass filter and a photomultiplier. Range selection is obtained by placing a voltage divider in the input circuit. The use of Au, Cd, or Li alloy shields to increase the sensitivity of the dosimeter are discussed. Calibration, reading, and use as needle implant dosimeters are described.

• Research Organization: Brookhaven National Lab., Upton, N.Y.
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-027345
• OSTI ID: 4817574
• Report Number(s): BNL-4794; 0028-7113
• Journal Information: Transactions of the New York Academy of Sciences, Journal Name: Transactions of the New York Academy of Sciences Journal Issue: 4 Series II Vol. 23; ISSN 0028-7113
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ABSORPTION
CADMIUM ALLOYS
CIRCUITS
DOSEMETERS
ELECTRIC POTENTIAL
FLUORESCENCE
GLASS
GOLD ALLOYS
IONIZATION
LITHIUM ALLOYS
MATRICES
OPTICAL SYSTEMS
PHOTOCHEMISTRY
PHOTOMULTIPLIERS
RADIATION EFFECTS
SEMICONDUCTORS
SENSITIVITY
SILVER
SILVER PHOSPHATES
TESTING