background: radon and its daughter product are a major source of natural radiation exposure, the measurement of radon concentration in dwellings is assuming ever increasing importance. it is known from recent surveys in many countries that radon and its progeny contributes significantly to total inhalation dose and is well established that radon when inhaled in large quantity causes lung disord...

background: the natural radionuclides are always present in soil and care needs to be taken to minimize the radiation dose to humans. these radionuclides are mostly gamma ray emitting radionuclides which contribute to the radiation dose in long term behavior of radionuclides in soil. health hazards associated with natural radioactivity are of great concern and it is necessary to assess risk due...

Background . Prostate cancer (PCa) is one of the most common malignant diseases in men worldwide, with over 1.1 million cases PCa reported annually. In Russian Federation, proportion patients stage I—II from 2008 to 2018 increased 37.6 % 56 %, which turn allows more and perform radical treatment methods. However, it should be noted that number both recurrent after radiation therapy (external be...