Application of CaSO4:Dy (TLD-900) to diagnostic x-ray exposures

Journal Article · · Med. Phys.; (United States)

DOI:https://doi.org/10.1118/1.595337· OSTI ID:7020781

Niroomand-Rad, A; DeWerd, L A

The properties of a new commercial thermoluminescent dosimeter, CaSO4:Dy without a LiF binder (TLD-900) was studied for low-exposure measurements in diagnostic radiology. The former TLD-900 had a LiF binder (herein referred to as ''TLD-900/LiF''). The principle features of this dosimeter are its high sensitivity to low-energy radiation and its relatively low fading which permits measurements down to less than 2.6 X 10(-8) C kg (0.1 mR) with an accuracy better than 20%. The characteristics, annealing procedures, light sensitivity, energy response, reproducibility, and fading, of TLD-900 are discussed and compared with TLD-900/LiF. When the precautions presented in this paper are used, the dosimeters can be used for the measurement of x-ray exposures.

• Research Organization: Univ. of Wisconsin, Madison
• OSTI ID: 7020781
• Journal Information: Med. Phys.; (United States), Journal Name: Med. Phys.; (United States) Vol. 10:5; ISSN MPHYA
• Country of Publication: United States
• Language: English

Related Subjects

440102* -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BIOMEDICAL RADIOGRAPHY
DIAGNOSTIC TECHNIQUES
DOSEMETERS
ELECTROMAGNETIC RADIATION
IONIZING RADIATIONS
LUMINESCENT DOSEMETERS
MEASURING INSTRUMENTS
MEDICINE
NUCLEAR MEDICINE
PERFORMANCE TESTING
RADIATION DOSE DISTRIBUTIONS
RADIATIONS
RADIOLOGY
TESTING
THERMOLUMINESCENT DOSEMETERS
X RADIATION