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Title: Radioactive ion beam transportation for the fundamental symmetry study with laser-trapped atoms

The search for the violation of the fundamental symmetry in a radioactive atom is the promising candidate for precision tests of the standard model and its possible extensions. The subtle signal arising from the symmetry violation is enhanced in heavy atoms, such as a francium (Fr). To realize high precision measurements, a large amount of radioactive isotopes is required. The Fr is produced via a nuclear fusion reaction using a melted gold target with a {sup 18}O primary beam at Cyclotron and Radioisotope Center, Tohoku University. The maximum extraction efficiency of the Fr ion was achieved at approximately 35%. The beam line consists of an electrostatic deflector, three electrostatic quadrupole triplets to the measurement area at 10 m away from the reaction point, and several beam diagnosis systems. We optimized parameters of the beam line.
Authors:
; ; ; ; ; ; ; ; ; ; ; ; ;  [1] ;  [2] ;  [3] ;  [4] ; ;  [5] ;  [6] more »; « less
  1. Cyclotron and Radioisotope Center, Tohoku University, Miyagi 980-8578 (Japan)
  2. Graduate School of Arts and Sciences, University of Tokyo, Tokyo 153-8902 (Japan)
  3. Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397 (Japan)
  4. Department of Applied Physics, Tokyo University of Agriculture and Technology, Tokyo 184-8588 (Japan)
  5. Research Center for Nuclear Physics, Osaka University, Osaka 606-8502 (Japan)
  6. Advanced Science Research Center, Japan Atomic Energy Agency, Ibaraki 319-1184 (Japan)
Publication Date:
OSTI Identifier:
22253189
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 2; Conference: ICIS 2011: 14. international conference on ion sources, Giardini-Naxos, Sicily (Italy), 12-16 Sep 2011; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ACCURACY; APPROXIMATIONS; CYCLOTRONS; FRANCIUM; FRANCIUM IONS; HEAVY ION FUSION REACTIONS; LASERS; OXYGEN 18; RADIOACTIVE ION BEAMS; STANDARD MODEL; SYMMETRY BREAKING; THERMONUCLEAR REACTIONS; TRAPPING