New recoil transfer chamber for thermalization of heavy ions produced in fusion–evaporation reactions
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© 2015 Elsevier B.V. Abstract A new Recoil Transfer Chamber (RTC) has been designed, fabricated, and characterized at the Cyclotron Institute at Texas A&M University. The design is based on a gas stopper that was previously in routine use at the National Superconducting Cyclotron Laboratory. This new RTC uses He gas to stop ions, and a combination of a static electric field and gas flow to maximize the extraction efficiency. In offline experiments, a 228Th source was used to produce 216Po which was successfully extracted even though it has a short half-life. In online experiments using the products of the 118Sn(40Ar, 6n)152Er reaction, an efficiency of several tens of percent was measured.
author list (cited authors)
Alfonso, M. C., Tereshatov, E. E., DeVanzo, M. J., Sefcik, J. A., Bennett, M. E., Mayorov, D. A., Werke, T. A., & Folden, C. M.