Whole-Body Counting Systems

An Intercomparison of Counting Efficiency and the Performance of Two Whole-Body Counters According to the Type of Phantom

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 th...

Application of Mathematical Phantom to Precise Calibration for Whole-body Counting

INTRODUCTION The calibration of whole-body counter (WBC), that means the determination of the body burden of radionuclides, is generally carried out by comparing the measurements between the human body and the standard calibration phantom. The measured counting efficiency is affected by the deference of size, shape and distribution of radioactivity between them. Therefore, if the standard phant...

The determination of iron absorption and loss by whole body counting.

Monte Carlo simulation of a scanning whole body counter and the effect of BOMAB phantom size on the calibration

INTRODUCTION: In Vivo measurements use radiation detectors, such as NaI, that require calibration using a source that is both geometrically and materially similar to the actual sample to be measured. In the case of whole body counting, the sample being measured is a person. Traditionally, BOttle Mannikin ABsorber (BOMAB) phantoms have been used for this purpose. A BOMAB phantom usually consists...

Radioprotection by tempol: Studies on tissue antioxidant levels, hematopoietic and gastrointestinal systems, in mice whole body exposed to sub- lethal doses of gamma radiation

Background: Ionizing radiation induces the production of reactive oxygen species (ROS), which play an important causative role in cell death. Wholebody exposure of mice to gamma radiation leads to diminution of tissue antioxidant defense systems increases the peroxidative damage to membrane lipids and damages the haematopoietic and gastrointestinal systems. Tempol (TPL), a cell membranep...