UV-B (equal energy) Treatment Sample (image) The Optical Society Caption UV-B (equal energy) treatment prevents damaged areas from spreading while also inhibiting mold growth. This is a critical aspect of the technology -- the ability to "tune" the UV to the most effective part of the spectrum, something that would be difficult and much less efficient using a typical mercury UV source. Credit Credit: Sensor Electronic Technology Inc (SETi). Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.