An Intercomparison of Counting Efficiency and the Performance of Two Whole-Body Counters According to the Type of Phantom
نویسندگان
چکیده
Background: Whole-body counters are widely used to evaluate internal contamination of the internal presence of gamma-emitting radionuclides. In internal dosimetry, it is a basic requirement that quality control procedures be applied to verify the reliability of the measured results. The implementation of intercomparison programs plays an important role in quality control, and the accuracy of the calibration and the reliability of the results should be verified through intercomparison. In this study, we evaluated the reliability of 2 whole-body counting systems using 2 calibration methods.
منابع مشابه
Evaluation of the Interference of the Microwave Radiation Emitted from GSM Mobile Phones on the Performance of Cell Counters
Abstract Background and Objectives: Incidents related to electromagnetic interference with medical devices have been reported over the past decades. It has also been indicated that the microwave radiation emitted from mobile phones interferes with the operation of medical devices therefore, this study aimed at testing the interference by GSM mobile phones with cell counters. Material and Method...
متن کاملDesign and Construction of an Affordable Phantom for Electron Density Measurement and Linearity Tests of Computed Tomography Systems
Introduction: The performance of computed tomography is routinely checked using phantoms, which are known as important diagnostic imaging tools. Depending upon the aim of the study, different phantoms are designed, while trying to satisfy certain levels of diversities in their application. Material and Methods: The present study describes the...
متن کاملAn approach for the efficiency calibration of whole body counters.
An approach is outlined for the evaluation of the efficiency of whole body counters using experimental data for a point source and Monte Carlo simulation of the efficiency of photon arrival at a large volume NaI(Tl) detector. The approach was applied to the measurement of an experimental whole body phantom. The experimental and the predicted efficiencies were found to differ from -2.5% to 8.4%....
متن کاملIn-Vivo Calibration of a LE Ge detection system for the assessment of Americium in bone, in the Whole Body Counter of CIEMAT
The calibration of a LE Ge detector system has been performed at CIEMAT Whole Body Counter for the assessment of Am in skull and knee. The facility counts with a Cohen phantom simulating a human head with 1000 Bq of Americium homogeneously distributed in the bone equivalent material. Measurements of the LE Ge system with the skull phantom were carried out in an optimisation study of counting ef...
متن کاملFabrication of anthropomorphic phantoms for use in total body photon irradiation and total skin electron irradiation studies
Introduction: Total Skin Electron Therapy (TSET) and Total Body Irradiation (TBI) are kinds of treatment which use electron and photon beams to treat special types of cancers. The aim of these techniques are to deliver uniform dose to the entire skin while minimizing delivered dose to organs at risk. To check the homogeneity of dose delivery in TBI and TSET, using a humanoid ph...
متن کامل