introduction: in patients with thyroid carcinoma, radiation absorbed doses of the thyroid and surrounding tissues is important to weigh risk and benefit considerations. in nuclear medicine, the accuracy of absorbed dose of internally distributed radionuclides is estimated by different methods such as mird and direct method using tld. the aim of this study is using tld and a phantom to determine...

  Introduction: In patients with thyroid carcinoma, radiation absorbed doses of the thyroid and surrounding tissues is important to weigh risk and benefit considerations. In nuclear medicine, the accuracy of absorbed dose of internally distributed radionuclides is estimated by different methods such as MIRD and direct method using TLD. The aim of this study is using T...

Introduction: In radiation therapy, knowing the dose rates to healthy organs and tumors is beneficial, and thermoluminescent dosimeter (TLD) allows for this possibility. This study was aimed at determining the dose-response differences of TLDs in various types of radiation, energy levels, and dose rate calibrated with other types of radiation beams and energy and dose levels. Materials and Meth...

Background: The present work aims to study the out-of-field photon calculation accuracy of a commercial treatment planning system (TPS), Oncentra, for three-dimensional conformal radiotherapy (3D-CRT) and intensity modulated radiation therapy (IMRT) treatment techniques from Elekta Synergy medical linear accelerator. Materials and Methods: Accuracy of individual out-of-field dose components was...

INTRODUCTION In India, official and centralized personnel monitoring service using film badge was started in 1952 by Bhabha Atomic Research Centre, Bombay (1). With the indigenous development of a TLD badge system (2) based on CaSO4:Dy Teflon disc dosimeter (3) exhibiting evident superiorities over film badge, replacement of film based individual dosimeter by TLD was initiated in 1975. At prese...

Interventional procedures in radiology and cardiology are associated with high dose to the patient. Accurate dosimetry is essential calibration of equipment a means provide necessary accuracy assessment. The objective this work investigate performance dosimeters used interventional different standard non-standard X-ray radiation qualities, potential uncertainties related measurements, thus impr...