Laser assisted decay spectroscopy at the CRIS beam line at ISOLDE
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Abstract
The new collinear resonant ionization spectroscopy (Cris) experiment at Isolde, Cern uses laser radiation to stepwise excite and ionize an atomic beam for the purpose of ultra-sensitive detection of rare isotopes and hyperfine structure measurements. The technique also offers the ability to purify an ion beam that is contaminated with radioactive isobars, including the ground state of an isotope from its isomer. A new program using the Cris technique to select only nuclear isomeric states for decay spectroscopy commenced last year. The isomeric ion beam is selected using a resonance within its hyperfine structure and subsequently deflected to a decay spectroscopy station. This consists of a rotating wheel implantation system for alpha and beta decay spectroscopy, and up to three high purity germanium detectors for gamma-ray detection. This paper gives an introduction to the Cris technique, the current status of the laser assisted decay spectroscopy set-up and recent results from the experiment in November 2011.
Keywords
CRIS ISOLDE Laser spectroscopy Decay spectroscopyPreview
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References
- 1.Flanagan, K.T., et al.: AIP Conf. Proc. 1377, 38 (2011)ADSCrossRefGoogle Scholar
- 2.Procter, T.J., et al.: J. Phys.: Conf. Ser. 381, 012070 (2012)ADSCrossRefGoogle Scholar
- 3.Procter, T.J., et al.: LAP2012 Proceedings (2012)Google Scholar
- 4.Cheal, B., Flanagan, K.T.: J. Phys. G 37(11), 113101 (2010)ADSCrossRefGoogle Scholar
- 5.Hurst, G.S., et al.: Rev. Mod. Phys. 51(4), 767 (1979)ADSCrossRefGoogle Scholar
- 6.Billowes, J., Campbell, P.: J. Phys. G: Nucl. Part. Phys. 21, 707 (1995)ADSCrossRefGoogle Scholar
- 7.Fedosseev, V.N., Kudryavtsev, Yu., Mishin, V.I.: Phys. Scr. 85, 058104 (2012)ADSCrossRefGoogle Scholar
- 8.Letokhov, V.: Opt. Commun. 7, 59 (1973)ADSCrossRefGoogle Scholar
- 9.Weissman, L., et al.: Phys. Rev. C 65, 024315 (2002)ADSCrossRefGoogle Scholar
- 10.Van Roosbroeck, J., et al.: Phys. Rev. Lett. 92, 112501 (2004)ADSCrossRefGoogle Scholar
- 11.Stefanescu, I., et al.: Phys. Rev. Lett. 98, 122701 (2007)ADSCrossRefGoogle Scholar
- 12.Cheal, B., et al.: Phys. Rev. C 82, 051302 (2010)ADSCrossRefGoogle Scholar
- 13.Hakala, J., et al.: Phys. Rev. Lett. 101, 052502 (2008)ADSCrossRefGoogle Scholar
- 14.Cheal, B., et al.: Phys. Rev. Lett. 104, 252502 (2010)ADSCrossRefGoogle Scholar
- 15.Hornshoj, P., Hansen, P., Jonson, B.: Nucl. Phys. A 230(3), 380 (1974)ADSCrossRefGoogle Scholar
- 16.Schulz, Ch., et al.: J. Phys. B At. Mol. Opt. Phys. 24, 4831 (1991)ADSCrossRefGoogle Scholar
- 17.Lynch, K.M., et al.: J. Phys.: Conf. Ser. 381, 012128 (2012)CrossRefGoogle Scholar
- 18.Huyse, M., et al.: Phys. Rev. C 46, 1209 (1992)ADSCrossRefGoogle Scholar
- 19.Chiara, C., Kondev, F.: Nucl. Data Sheets 111(1), 141 (2010)ADSCrossRefGoogle Scholar
- 20.Uusitalo, J., et al.: Phys. Rev. C 71, 024306 (2005)ADSCrossRefGoogle Scholar
- 21.Andreyev, A.N., et al.: CERN-INTC-2008-001, INTC-P-235. CERN Geneva (2008)Google Scholar
- 22.Jonson, B., Richter, A.: Hyperfine Interact. 129, 1 (2000)ADSCrossRefGoogle Scholar
- 23.Mané, E., et al.: Eur. Phys. J. A 42, 503 (2009)ADSCrossRefGoogle Scholar
- 24.Hori, M., Dax, A.: Opt. Lett. 34(8), 1273 (2009)ADSCrossRefGoogle Scholar
- 25.Dendooven, P.: Ph.D. thesis, Katholieke Universiteit Leuven (1992)Google Scholar
- 26.Andreyev, A.N., et al.: Phys. Rev. Lett. 105, 252502 (2010)ADSCrossRefGoogle Scholar
- 27.Rajabali, M.M., et al.: Nucl. Instrum. Methods Phys. Res. A 707, 35 (2013). doi: 10.1016/j.nima.2012.12.090i ADSCrossRefGoogle Scholar