Standardized Stainless-Steel Cylinder (image) Johannes Gutenberg Universitaet Mainz Share Print E-Mail Caption This is a standardized stainless-steel cylinder, which is used as a storage vessel and for measurements. Credit photo/©: Christopher Geppert, JGU Institute of Nuclear Chemistry Usage Restrictions This image may only be used in connection with the press release "New record at ultracold neutron source in Mainz ", issued by Johannes Gutenberg University Mainz on January 15, 2018. Share Print E-Mail 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.