Routine diagnostic X-rays (e.g., chest X-rays, mammograms, computed tomography scans) and routine diagnostic nuclear medicine procedures using sparsely ionizing radiation forms (e.g., beta and gamma radiations) stimulate the removal of precancerous neo-plastically transformed and other genomically unstable cells from the body (medical radiation hormesis). The indicated radiation hormesis arises...

The theme ionizing radiation is frequently associated with danger. Therefore this subject induces to think about accessories to personal protection. These accessories can contain metal heavy (as example, lead) so that we have an efficient protection. Our analysis was done with the main objective of evidence that is not enough the radiodiagnostic services have personal protective equipment to di...

Introduction: Dental radiography as one of the most frequent type of radiological examinations is accepted for medical investigations due to their significant benefits nevertheless using ionizing radiation. It has lower radiation dose compared to another radiological examination but because of its high application for children, radiation dose needs attention. Based on affectin...

OBJECTIVE To evaluate the level of ambient radiation in a PET/CT center. MATERIALS AND METHODS Previously selected and calibrated TLD-100H thermoluminescent dosimeters were utilized to measure room radiation levels. During 32 days, the detectors were placed in several strategically selected points inside the PET/CT center and in adjacent buildings. After the exposure period the dosimeters wer...

Absorption computed tomography (CT) relies on the imaging of X-ray radiation transmitted through a specimen in different orientations. For photon energies exceeding 100 keV, a significant fraction of the X-ray radiation is scattered by the object and the environment (components of the instrument, detector, radiation protection, etc.). As the scattered radiation blurs the transmission images, th...

introduction given the fact that children are more sensitive to radiation, compared to adults, special attention needs to be paid to radiation protection in pediatric radiology. diagnostic reference level (drl) has been defined to be employed as a practical tool for examining the overall performance of a radiological center in terms of patient dose among a series of similar equipments in an are...

Optimisation of radiation protection in fluoroscopy is important since the procedure could lead to relatively high absorbed doses both in patients and personnel resulting in acute radiation injury. Optimisation procedures include adjustment of the fluoroscopy equipment such as exposure factors as well as proper use of automatic brightness control and pulsed fluoroscopy. It is also important to ...

Introduction: Ionizing radiations are the hazardous agents in the workplace and all forms of ionizing radiation produce some type of injuries. Awareness of application of protection guidelines and knowledge of the principles of radiation protection can play an important role in health of employees. Survey of radiation employee’s levels of awareness and practical behavior is essential and ...

Radiation exposure dosimetry for the personnel is based on measurements of phantom studies. To determine effective dose values for different X-ray equipment, TLD-measurements were performed using an Alderson Phantom in the patient position and a second phantom in the typical position of the personnel. Various types of protective clothing as well as fixed shields were considered in the calculati...

PURPOSE Radiographs is an integral part of patient management in dentistry, despite their detrimental effects. As the literature pertaining to radiation protection among Indian dental practitioners is sparse, exploring such protection is needed. MATERIALS AND METHODS All private dental practitioners in Mangalore, India were included in the study. A structured, pre-tested, self-administered qu...