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

Journal Article · · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
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  1. Joint Inst. for Nuclear Research (JINR), Dubna (Russia)
  2. Joint Inst. for Nuclear Research (JINR), Dubna (Russia); Inst. of Nuclear Physics, Almaty (Kazakhstan)
  3. Joint Inst. for Nuclear Research (JINR), Dubna (Russia); Palacky Univ., Olomouc (Czech Republic)
  4. SIGMAPHI, Vanne (France)
  5. Inst. for Analytical Instrumentation, St. Petersburg (Russia)
  6. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  7. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Premise Health, Brentwood, TN (United States)
  8. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  9. Chinese Academy of Sciences (CAS), Lanzhou (China). Inst. of Modern Physics
+ Show Author Affiliations

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. Additionally, 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.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); National Natural Science Foundation of China (NSFC)
Grant/Contract Number:
AC05-00OR22725; AC52-07NA27344; FG05-88ER40407
OSTI ID:
1871877
Journal Information:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Journal Name: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment Journal Issue: 6 Vol. 1033; ISSN 0168-9002
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
electromagnetic separators
gas-filled separators
nuclear reactions
superheavy elements