A linear RFQ ion trap for the Enriched Xenon Observatory |
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| Affiliation: | 1. Physics Department, Stanford University, Stanford, CA, USA;2. Institut de Physique, Université de Neuchatel, Neuchatel, Switzerland;3. Stanford Linear Accelerator Center, Menlo Park, CA, USA;4. Physics Department, Colorado State University, Fort Collins, CO, USA;5. Physics Department, Laurentian University, Sudbury, Ont., Canada;6. Physics Department, Carleton University, Ottawa, Ont., Canada;7. Department of Physics and Astronomy, University of Alabama, Tuscaloosa, AL, USA;1. CERN, CH-1211 Geneva, Switzerland;2. Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany;3. GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany;4. KU Leuven, 3001 Leuven, Belgium;5. University of Manchester, Manchester M13 9PL, United Kingdom;6. Fakult ät f”ur Physik und Astronomie, Ruprecht-Karls-Universität, 69120 Heidelberg, Germany;7. FAIR GmbH, 64291 Darmstadt, Germany;8. Institut Laue Langevin, 38042 Grenoble, France;9. CSNSM-IN2P3-CNRS, Université Paris-Sud, 91406 Orsay, France;10. Helmholtz-Institut Mainz, 55099 Mainz, Germany;11. ENSICAEN, 14000 Caen, France;12. Institut für Physik, Johannes Gutenberg-Universität, Mainz, Germany;13. Hochschule RheinMain, Fachbereich Design Informatik Medien, D-65197 Wiesbaden, Germany;14. Institut für Physik, Ernst-Moritz-Arndt-Universität, 17487 Greifswald, Germany;15. Technische Universität Dresden, 01069 Dresden, Germany;1. Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USA;2. Department of Computer and Electrical Engineering, Brigham Young University, Provo, UT 84602, USA;3. Torion Technologies, American Fork, UT, USA;1. State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, China;2. Department of Chemistry, Fudan University, Shanghai 200433, China |
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| Abstract: | The design, construction, and performance of a linear radio-frequency ion trap (RFQ) intended for use in the Enriched Xenon Observatory (EXO) are described. EXO aims to detect the neutrinoless double-beta decay of 136Xe to 136Ba. To suppress possible backgrounds EXO will complement the measurement of decay energy and, to some extent, topology of candidate events in a Xe filled detector with the identification of the daughter nucleus (136Ba). The ion trap described here is capable of accepting, cooling, and confining individual Ba ions extracted from the site of the candidate double-beta decay event. A single trapped ion can then be identified, with a large signal-to-noise ratio, via laser spectroscopy. |
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