X-ray Gun (IMAGE) Field Museum Caption Ceramics from the Field Museum's Java Sea Shipwreck collection being analyzed by portable X-ray fluorescence. Credit (c) Field Museum. Photographer Kate Golembiewski. Usage Restrictions Please include above credit line 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.