Cancer Countermeasures on a Column (IMAGE) DOE/US Department of Energy Caption The medical radioisotope astatine is separated from bismuth then loaded into a resin column. Once dry, the column is packed for shipping so the astatine can be sent for use at a cancer treatment center. Credit Image courtesy of Texas A&M University Usage Restrictions Image courtesy of Texas A&M University 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.