Fig. 2: Boron-loaded Polyethylene Masks (image) Science China Press Caption These are images of boron-loaded polyethylene masks: LZU and CEA with Am-Be neutrons. Credit ©Science China Press 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.