Calibration of Mg2SiO4(Tb) thermoluminescent dosimeters for use in determining diagnostic X-ray doses to Adult Health Study participants
Description
Characteristics of Mg2SiO4(Tb) thermoluminescent dosimeters (TLD) were ascertained preparatory to measuring dose from diagnostic X-ray examinations received by Adult Health Study participants. These detectors are small, relatively sensitive to low-dose X rays, and are appropriate for precise dosimetry. Extensive calibration is necessary for precisely determining doses according to their thermoluminescent intensities. Their sensitivities were investigated, by dose according to X-ray tube voltage, and by exposure direction, to obtain directional dependence. Dosimeter sensitivity lessened due to the fading effect and diminution of the planchet. However, these adverse effects can be avoided by storing the dosimeters at least 1.5 hours and by using fresh silver-plated planchets. Thus, the TLDs, for which sensitivities were determined in this study, will be useful in subsequent diagnostic X-ray dosimetry. (author)
Availability note (English)
MF available from INIS under the Report Number.
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Additional details
Publishing Information
- Imprint Pagination
- 13 p.
- Report number
- RERF-TR--11-89
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 21053649
- Subject category
- S07: ISOTOPES AND RADIATION SOURCES;
- Descriptors DEI
- ACCURACY; ANGULAR CORRELATION; BIOMEDICAL RADIOGRAPHY; CALIBRATION; MAGNESIUM OXIDES; MEDICAL EXAMINATIONS; PHANTOMS; RADIATION DOSES; SENSITIVITY; SILICON OXIDES; THERMOLUMINESCENT DOSEMETERS; X-RAY DOSIMETRY
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; CORRELATIONS; DIAGNOSTIC TECHNIQUES; DOSEMETERS; DOSIMETRY; LUMINESCENT DOSEMETERS; MAGNESIUM COMPOUNDS; MEASURING INSTRUMENTS; MEDICAL SURVEILLANCE; MEDICINE; MOCKUP; OXIDES; OXYGEN COMPOUNDS; SILICON COMPOUNDS; STRUCTURAL MODELS