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 should...

In the electromagnetic spectrum, structural damage to living tissues per unit of absorbed energy tends to increase with the decrease of a wavelength which is evident not only for ultraviolet and ionizing radiation but also for the infrared and visible light. By causing thermal damage after absorbing energies that would be harmless for radiofrequency electromagnetic fields (EMF), tissues are eve...

With the increasing use of atomic energy in our society, the effects of ionizing radiation, particularly those that are delayed, have become a matter of great concern. Since 1947 the Atomic Bomb Casualty Commission (ABCC) has conducted continuing medical studies among survivors of the atomic bombing in Hiroshima and Nagasaki, including since 1951 a group of children who were irradiated in utero...

In oncology, treating cancer with a beam of photons is a well established therapeutic technique, developed over 100 years, and today over 50% of cancer patients will undergo traditional X-ray radiotherapy. However, ionizing radiation therapy is not the only option, as the high-energy photons delivering their cell-killing radiation energy into cancerous tumor can lead to significant damage to he...

Radiation oncology is a medical discipline mainly involved in the treatment of cancer with ionizing radiation. It is based on full knowledge of individual patient cancer disease, delineation of the target volume including tumor that has to receive therapeutic radiation dose, delineation of normal tissues to be spared, treatment planning with dedicated calculation algorithms, radiation delivery ...

Background: Cell ability to recover from radiation damage is of great relevance in cancer treatment. It is often believed that the inhibition of cell ability to the liquid holding recovery (LHR) may be an indicator of the overall suppression of cell ability to recover from potentially lethal radiation damage. However, the literature contains no experimental evidence whether the LHR inhibition m...

many cellular damages either in normal or cancerous tissues are the outcome of molecular events affected by ionizing radiation. t‑cells are the most important among immune system agents and are used for biological radiation dose measurement in recommended standard methods. the herbs with immune modulating properties may be useful to reduce the risk of the damages and subsequently the diseases. ...

In the electromagnetic spectrum, structural damage to living tissues per unit of absorbed energy tends to increase with the decrease of a wavelength which is evident not only for ultraviolet and ionizing radiation but also for the infrared and visible light. By causing thermal damage after absorbing energies that would be harmless for radiofrequency electromagnetic fields (EMF), tissues are eve...