Electromagnetic radiation (or "extreme") ultraviolet. UV, with X-ray and gamma radiation, are referred to as ionizing radiation due to the ability of photons of this radiation to produce ions and free radicals in materials (including living tissue). Since such radiation can severely damage life at energy levels that produce little heating, it is considered far more dangerous (in terms of damage-produced per unit of energy, or power) than the rest of the electromagnetic spectrum. The heat ray is an application of EMR that makes use of microwave frequencies to create an unpleasant heating effect in the upper layer of the skin. A
Radiation-induced lumbar plexopathy limiting the mean dose to < 45 Gy. One approach to reduced levels, the plexus' mapping with other organs at risk, was clinically evaluated during the 2010s. Clinical evidence of the cause-and-effect of prevention and the management of radiation induced polyneuropathy is limited. In 2011 the National Radiation Oncology Registry (NROR) was announced by the Radiation Oncology Institute (ROI). ROI and Massachusetts General Hospital would collect efficacy and side effect information (like radiation induced neuropathy) from people who had undergone radiotherapy. In 2013 the American Society for Radiation Oncology joined the effort. Experimental approaches of RILP treatment include: Radiation-induced lumbar