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POLAREX - Study of polarized exotic nuclei at millikelvin temperatures

L. Risegari A. Astier 1 G. Audi 1 S. Cabaret 2 C. Gaulard 1 G. Georgiev 1 N.J. Stone J.R. Stone
1 CSNSM SNO
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière : UMR8609
2 CSNSM MECA
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
Abstract : POLAREX (POLARization of EXotic nuclei) is a new facility for the study of nuclear magnetic moments and decay modes of exotic nuclei using the established On-Line Nuclear Orientation (OLNO) method. A radioactive beam of interest is implanted into a ferromagnetic host foil held at a temperature of order 10mK in a (3)He - (4)He dilution refrigerator. The foil is magnetized by an applied magnetic field and the nuclear spins become polarized through the internal hyperfine field. The angular distribution of decay products from the polarized sample is measured. Accurate values of nuclear moment are obtained by NMR. The new facility will have access to neutron-rich nuclides produced at the ALTO facility (Linear Accelerator at Orsay Tandem) by fission induced by electrons from the linear electron accelerator. Basic concepts and initial tests are outlined.
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Submitted on : Thursday, April 5, 2012 - 4:53:57 PM
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L. Risegari, A. Astier, G. Audi, S. Cabaret, C. Gaulard, et al.. POLAREX - Study of polarized exotic nuclei at millikelvin temperatures. 5th International Conference on Exotic Nuclei and Atomic Masses (ENAM'08), 2008, Ryn, Poland. pp.307-310, ⟨10.1140/epja/i2009-10779-4⟩. ⟨in2p3-00685723⟩

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