DGFRS-2—A gas-filled recoil separator for the Dubna Super Heavy Element Factory

The main goal of development of the new Dubna Gas-Filled Recoil Separator (DGFRS-2) is to sufficiently improve the efficiency of studies on heavy and superheavy nuclei at the Super Heavy Element Factory of the Flerov Laboratory of Nuclear Reactions (FLNR) at the Joint Institute for Nuclear Research....

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Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 1033; no. 6; p. 166640
Main Authors: Oganessian, Yu.Ts, Utyonkov, V.K., Popeko, A.G., Solovyev, D.I., Abdullin, F.Sh, Dmitriev, S.N., Ibadullayev, D., Itkis, M.G., Kovrizhnykh, N.D., Kuznetsov, D.A., Petrushkin, O.V., Podshibiakin, A.V., Polyakov, A.N., Sagaidak, R.N., Schlattauer, L., Shirokovsky, I.V., Shubin, V.D., Shumeiko, M.V., Tsyganov, Yu.S., Voinov, A.A., Subbotin, V.G., Bekhterev, V.V., Belykh, N.A., Chernyshev, O.A., Gikal, K.B., Ivanov, G.N., Khalkin, A.V., Konstantinov, V.V., Osipov, N.F., Paschenko, S.V., Protasov, A.A., Semin, V.A., Sorokoumov, V.V., Sychev, K.P., Verevochkin, V.A., Yakovlev, B.I., Antoine, S., Beeckman, W., Jehanno, P., Yavor, M.I., Shcherbakov, A.P., Rykaczewski, K.P., King, T.T., Roberto, J.B., Brewer, N.T., Grzywacz, R.K., Gan, Z.G., Zhang, Z.Y., Huang, M.H., Yang, H.B.
Format: Journal Article
Language:English
Published: United States Elsevier B.V 11-06-2022
Elsevier
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Summary:The main goal of development of the new Dubna Gas-Filled Recoil Separator (DGFRS-2) is to sufficiently improve the efficiency of studies on heavy and superheavy nuclei at the Super Heavy Element Factory of the Flerov Laboratory of Nuclear Reactions (FLNR) at the Joint Institute for Nuclear Research. The use of beams with the intensity up to 6×1013 s−1 (10 pμA) delivered by the DC280 cyclotron requires an effective setup providing high suppression of background reaction products. The described gas-filled separator is optimized for synthesis and study of heavy isotopes produced in complete fusion reactions of massive nuclei. Basic characteristics of DGFRS-2, as well as the results of the first test experiments, are presented. In comparison to the DGFRS-1, the transmission efficiency was doubled, and the background was reduced by a factor 200.
Bibliography:National Natural Science Foundation of China (NSFC)
AC05-00OR22725; AC52-07NA27344; FG05-88ER40407; 11661131003
USDOE Office of Science (SC), Nuclear Physics (NP)
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2022.166640