Vacuum Pressure Impregnation Process (IMAGE) University of Tennessee at Knoxville Caption Researchers and staff at UT's Magnet Development Laboratory prepare the central solenoid mockup for the vacuum pressure impregnation process. Credit University of Tennessee, Knoxville Usage Restrictions None License Licensed 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.