background: recently, different investigators have studied the possibility of radiation therapy in restenosis prevention and have shown promising results. in this study a unique radioactive source for intra vascular brachytherapy (ivbt) was investigated. the two-dimensional dose distribution in water for a 32p ivbt stent has been calculated. the pure beta emitter source 32p has been coated on p...

The BiPo project is dedicated to the measurement of extremely low radioactive contaminations of SuperNEMO ββ source foils (Tl < 2 μBq/kg and Bi < 10 μBq/kg). A modular BiPo1 prototype with its 20 modules and its shielding test facility is running in the Modane Underground Laboratory since February, 2008. The goal of this prototype is to study the backgrounds and particularly the surface contami...

Introduction: Brachytherapy is a type of radiotherapy in which radioactive sources are used in proximity of tumors normally for treatment of malignancies in the head, prostate and cervix. Materials and Methods: The Cs-137 Selectron source is a low-dose-rate (LDR) brachytherapy source used in a remote afterloading system for treatment of different cancers. This system uses active and inactive sp...

Poland faces a choice of an environmental radiation monitoring systems (ERMS) for newly designed Nuclear Power Plant (NPP). Contemporary radiation monitoring systems can be based on gamma detector cooperated with Multichannel Analyzer (MCA). This solution will give a tool for very fast assessment of radiological situation around NPP and allows authority to react in case of radiological circumst...

Energy dispersive X-ray fluorescence (EDXRF) is a rapid, straightforward method to determine sample elemental composition. A spectrum can be collected in a few minutes or less, and elemental content can be determined easily if the detector has adequate energy resolution. Radioactive alpha emitters, however, emit X-rays during the alpha decay process that complicates spectral interpretation. Thi...

IN THE years 1903 and 1904, shortly after the discovery of radium, small amounts of radioactivity were discovered in the water of the health springs of the spas of Germany and France. It was found that this radioactivity was due to radon, a gaseous daughter-product of radium. The supposed medicinal benefit from drinking of, or bathing in natural springwater was ascribed to the radon. A medical ...

Radiation is the emission (sending out) of energy from any source. The light that comes from the sun is a source of radiation, as is the heat that is constantly coming off our bodies. When talking about radiation, however, most people think of specific kinds of radiation such as that produced by radioactive materials or nuclear reactions. Most forms of radiation have not been linked to cancer. ...

High dose rate brachytherapy has attained the good local control for cervix cancer because radioactive source can be put close to tumors, resulting in increasing the dose delivery per one fraction. However, quality assurance must be accompanied to reduce severe complication. We verified the dose distribution around the source by comparing measured dose with calculated dose by Radiation Therapy ...