EPJ Web of Conferences (Jan 2016)

SPectrometer for Internal Conversion Electrons (SPICE) at TRIUMF-ISAC

  • Smallcombe J.,
  • Moukaddam M.,
  • Evitts L. J.,
  • Garnsworthy A. B.,
  • Hallam S.,
  • Andreoiu C.,
  • Ball G. C.,
  • Bolton C.,
  • Caballero-Folch R.,
  • Constable M.,
  • Cross D. S.,
  • Garrett P. E.,
  • Hackman G.,
  • Henderson J.,
  • Henderson R.,
  • Ketelhut S.,
  • Kruecken R.,
  • Kurchaninov L.,
  • Park J.,
  • Pore J. L.,
  • Rand E. T.,
  • Ruotsalainen P.,
  • Smith J. K.,
  • Svensson C. E.,
  • Williams M.

DOI
https://doi.org/10.1051/epjconf/201612304005
Journal volume & issue
Vol. 123
p. 04005

Abstract

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A new ancillary detector, SPICE (SPectrometer for Internal Conversion Electrons) has been constructed and recently commissioned for use with radioactive ion beams at the TRIUMF-ISAC II facility. SPICE is designed to be operated in conjunction with the TIGRESS High-Purity Germanium (HPGe) spectrometer to perform combined in-beam γ-ray and internal-conversion-electron spectroscopy. The main feature of SPICE is high effciency over a wide range of electron energies from 100 to 3500 keV, with an effective reduction of beam-induced backgrounds. SPICE will be a powerful tool to measure conversion coeffcients and E0 transitions in atomic nuclei. A recent in-beam commissioning experiment demonstrates the effectiveness of the basic design concept of SPICE in background suppression.