Calibration instrumentation used by the AAPM Radiological Physics Center

Journal Article · Wed Sep 01 00:00:00 EDT 1976 · Med. Phys.; (United States)

DOI:https://doi.org/10.1118/1.594266· OSTI ID:7351259

Grant, III, W; Cundiff, J; Hanson, W; Gagnon, W; Shalek, R

The Keithley model 602 electrometer--Farmer ionization chamber combination has served as the standard dosimetry system for calibration measurements made by the AAPM Radiological Physics Center at 156 different institutions. The constancy of this system is compared to that for the Baldwin--Farmer Secondary Standard Dosemeter type 2502, and is based on measurements made over a 3-yr period on a cobalt-60 ..gamma..-ray source. A strontium-90 check source is also shown to be a reliable standard, and frequent checks with such a source can prevent serious calibration errors. (AIP)

• Research Organization: AAPM Radiological Physics Center, The University of Texas System Cancer Center, M. D.Anderson Hospital and Tumor Institute, Houston, Texas 77030
• OSTI ID: 7351259
• Journal Information: Med. Phys.; (United States), Journal Name: Med. Phys.; (United States) Vol. 3:5; ISSN MPHYA
• Country of Publication: United States
• Language: English

Related Subjects

440102* -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALKALINE EARTH ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALIBRATION STANDARDS
COBALT 60
COBALT ISOTOPES
DOSEMETERS
DOSIMETRY
ELECTRIC MEASURING INSTRUMENTS
ELECTRICAL EQUIPMENT
ELECTROMETERS
EQUIPMENT
EVEN-EVEN NUCLEI
GAMMA DOSIMETRY
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IONIZATION CHAMBERS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MEASURING INSTRUMENTS
MINUTES LIVING RADIOISOTOPES
NUCLEI
ODD-ODD NUCLEI
RADIATION DETECTORS
RADIOISOTOPES
STANDARDS
STRONTIUM 90
STRONTIUM ISOTOPES
YEARS LIVING RADIOISOTOPES