Novel ingestible capsule X-ray dosimeter photo (IMAGE) National University of Singapore Caption The components of the dosimeter fit into an 18mm by 7mm capsule, a common size for many supplements and medicines. Credit National University of Singapore Usage Restrictions NA License Original 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.