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Kinetic Energy of Trapped Ions Cooled by Buffer Gas |
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| Authors: | CHEN Liang SHE Lei LI Jiao-Mei GAO Ke-Lin |
| Affiliation: | State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071 Graduate School of the Chinese Academy of Sciences, Beijing 100049 |
| Abstract: | The average kinetic energy of 40Ca+ ions is measured by the method of evaporating ions in an rf ion trap. The kinetic energy of the ion 40Ca+ varies from 0.5 eV to 0.2 eV with changing buffer gas pressure from 10-7 mbar to 10-5 mbar. The Brownian motion model is also introduced to calculate the average kinetic energy of the trapped ions. |
| Keywords: | 32.80.Pj 39.90.+d 03.75.-b |
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