1. Rapid extraction of short-lived isotopes from a buffer gas cell for use in gas-phase chemistry experiments, Part II: On-line studies with short-lived accelerator-produced radionuclides.
- Author
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Götz, S., Raeder, S., Block, M., Düllmann, Ch.E., Folden III, C.M., Glennon, K.J., Götz, M., Hübner, A., Jäger, E., Kaleja, O., Khuyagbaatar, J., Kindler, B., Krier, J., Lens, L., Lommel, B., Mistry, A.K., Mokry, Ch., Runke, J., Såmark-Roth, A., and Tereshatov, E.E.
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CHEMISTRY experiments , *SUPERHEAVY elements , *HEAVY ion fusion reactions , *NUCLEAR reactions , *ISOTOPES , *RADIOISOTOPES , *ACCELERATOR mass spectrometry - Abstract
A novel combination of advanced gas-chromatography and detection systems coupled to a buffer-gas cell was characterized on-line to allow gas-phase chemical studies of accelerator-produced short-lived α -decaying mercury, francium, and astatine isotopes. These were produced in 40Ar- and 48Ca-induced nuclear fusion–evaporation reactions, subsequently isolated in the recoil separators MARS at Texas A&M University, USA, and TASCA at GSI Darmstadt, Germany, before being thermalized in a buffer-gas-stopping cell. From the latter, the nuclear reaction products were extracted into gas-phase chromatographic systems, suitable for registering α -decaying short-lived radionuclides, such as isotopes of superheavy elements. Efficiencies of 21(3)% for 204-209Fr were reached for the extraction into the optimized miniCOMPACT gas-chromatography setup, indicating that this technique enables the identification of isotopes of volatile as well as non-volatile elements. These studies guide the path towards chemical investigations of superheavy elements beyond flerovium, which are out of reach with currently used setups. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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