INL Hot Cell (IMAGE) DOE/Idaho National Laboratory Caption At its largest, the hot cell weighs around 78 tons, has 15-inch-thick steel walls, and has the internal space of about a small broom closet. Credit Idaho National Laboratory Usage Restrictions NA License Original content 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.