@article{oai:repo.qst.go.jp:00081852, author = {Nishinaka, Ichiro and Hashimoto, Kazuyuki and Ichiro, Nishinaka and Kazuyuki, Hashimoto}, issue = {2}, journal = {Journal of Radioanalytical and Nuclear Chemistry}, month = {Jan}, note = {Astatine was separated from a lead target, irradiated with 7Li ion beams, by dry distillation. Dry distillation was conducted in a glass test tube filled with nitrogen gas by heating the test tube with an electric furnace at 650 ℃. The optimized conditions of the dry distillation procedure were studied by monitoring astatine radioactivity with gamma-ray spectrometers. The separation of astatine was accomplished in ~10 min. The cooling of the middle portion of the test tube was instrumental in recovering astatine radioactivity in high yields. The adsorption temperature of astatine on the glass surface was ~20 ℃.}, pages = {869--875}, title = {Separation of astatine from irradiated lead targets based on dry distillation in a glass test tube}, volume = {327}, year = {2021} }