Gamma-Ray Absorbed Dose Measurements in Media with Plural Thermoluminescent Dosimeters Having Different Atomic Numbers
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چکیده
منابع مشابه
Dose measurements in intraoral radiography using thermoluminescent dosimeters
The use of X-ray in medicine demands to expose the patient and the professional to the lowest radiation doses available in agreement with ALARA philosophy. The reference level for intraoral dental radiography is 7 mGy and, in Mexico, a number of examinations of this type are performed annually. It is considered that approximately 25% of all the X-rays examinations carried out in our country cor...
متن کاملDose Measurements of Parotid Glands and Spinal Cord in Conventional Treatment of Nasopharyngeal Carcinoma Using RANDO Phantom and Thermoluminescent Dosimeters
Introduction Radiotherapy is regarded as the first treatment of choice for nasopharyngeal carcinoma. Despite the advantages of radiotherapy, patients may suffer from a wide range of side-effects due to the presence of many sensitive normal tissues in these regions. If the absorbed dose exceeds the tolerance level in parotid glands and the spinal cord, myelopathy, Lhermitte's sign and xerostomia...
متن کاملMeasurement of outdoor and indoor ambient gamma dose rate in Gorgan and Bandar-Torkman cities using gas and thermoluminescent dosimeters
Background and Objective: Human external exposure to natural radiation sources is much more than artificial radiation sources. In this study, external annual effective doses were estimated in cities of Gorgan and Bandar-Torkman by determining ambient gamma dose rate in indoor and outdoor spaces. Materials and Methods: Using an ionization chamber detector, the outdoor and indoor ambient gamma d...
متن کاملUncertainty analysis of absorbed dose calculations from thermoluminescence dosimeters.
Thermoluminescence dosimeters (TLD) are widely used to verify absorbed doses delivered from radiation therapy beams. Specifically, they are used by the Radiological Physics Center for mailed dosimetry for verification of therapy machine output. The effects of the random experimental uncertainties of various factors on dose calculations from TLD signals are examined, including: fading, dose resp...
متن کاملDose Measurements of Parotid Glands and Spinal Cord in Conventional Treatment of Nasopharyngeal Carcinoma Using RANDO Phantom and Thermoluminescent Dosimeters
Introduction Radiotherapy is regarded as the first treatment of choice for nasopharyngeal carcinoma. Despite the advantages of radiotherapy, patients may suffer from a wide range of side-effects due to the presence of many sensitive normal tissues in these regions. If the absorbed dose exceeds the tolerance level in parotid glands and the spinal cord, myelopathy, Lhermitte's sign and xerostomia...
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ژورنال
عنوان ژورنال: Journal of Nuclear Science and Technology
سال: 1985
ISSN: 0022-3131,1881-1248
DOI: 10.1080/18811248.1985.9735634