Nuclear polarization of short-lived Na isotopes maintained in single crystals for β-NMR spectroscopy

K. Minamisono, K. Matsuta, T. Minamisono, C. D.P. Levy, T. Nagatomo, M. Ogura, T. Sumikama, J. A. Behr, K. P. Jackson, M. Mihara, M. Fukuda

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


A compact β-ray detecting nuclear magnetic/quadrupole resonance system with a permanent magnet was developed at ISAC/TRIUMF to measure ground-state electromagnetic moments of short-lived nuclei. Polarized Na beams produced using the collinear optical-pumping technique were used to demonstrate the properties of the system. The degree of nuclear polarization and the spin-lattice relaxation times of the 20,21,26,27,28Na isotopes in NaF, TiO2, LiNbO3, MgF2, ZnO, Pt, and Mg single crystals at room temperature are reported. The electric-quadrupole coupling constants of 20,21Na in TiO2, ZnO and Mg, and that of 27Na in ZnO are also reported. The quadrupole moments of 20,21Na were extracted from the electric-quadrupole coupling constants in ZnO, using the known quadrupole moment of 27Na.

Original languageEnglish
Pages (from-to)45-54
Number of pages10
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1
Publication statusPublished - 2010 Apr 21


  • Electromagnetic nuclear moment
  • Nuclear polarization
  • Nuclear-spin lattice relaxation time
  • Optical pumping
  • β NMR

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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