LCLS-II Cryoplant (VIDEO) DOE/SLAC National Accelerator Laboratory This video is under embargo. Please login to access this video. Caption The linac is equipped with two world-class helium cryoplants. One of these cryoplants, built specifically for LCLS-II, cools helium gas from room temperature all the way down to its liquid phase at just a few degrees above absolute zero, providing the coolant for the accelerator. Credit Greg Stewart/SLAC National Accelerator Laboratory Usage Restrictions No restrictions. License Public Domain 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.