Accuracy of /sup 99/Molybdenum assays in /sup 99m/Technetium solutions

Conference · Sat Jan 31 23:00:00 EST 1981 · Radiology; (United States)

OSTI ID:6867211

Williams, C C; Kereiakes, J G; Grossman, L W

A study was performed to determine the accuracy of /sup 99/Mo measurements using three commercial dose calibrators with their /sup 99/Mo assay shields. One /sup 99/Mo assay shield allowed excessive penetration by the lower energy /sup 99m/Tc photons, resulting in the calibrator's falsely high interpretation of the activity of /sup 99/Mo present in the high-activity /sup 99m/Tc eluates. All three calibrators performed adequately with a National Bureau of Standards /sup 99/Mo standard in equilibrium with /sup 99m/Tc. By using low-activity aliquots of /sup 99/Mo and /sup 99m/Tc, a low-level linearity test was performed. Only one of the calibrators was found to reflect accurately the activity of /sup 99/Mo present under all conditions tested.

• Research Organization: Univ. of Cincinnati, OH
• OSTI ID: 6867211
• Journal Information: Radiology; (United States), Journal Name: Radiology; (United States) Vol. 138:2; ISSN RADLA
• Country of Publication: United States
• Language: English

Related Subjects

440102* -- Radiation Instrumentation-- Radiation Dosemeters
440103 -- Radiation Instrumentation-- Nuclear Spectroscopic Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCURACY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALIBRATION
CALIBRATION STANDARDS
CONTROL
DAYS LIVING RADIOISOTOPES
DOSEMETERS
EVEN-ODD NUCLEI
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MEASURING INSTRUMENTS
MOLYBDENUM 99
MOLYBDENUM ISOTOPES
NATIONAL ORGANIZATIONS
NUCLEI
ODD-EVEN NUCLEI
QUALITY CONTROL
RADIOISOTOPES
STANDARDS
TECHNETIUM 99
TECHNETIUM ISOTOPES
US DOC
US NBS
US ORGANIZATIONS
YEARS LIVING RADIOISOTOPES