Measurement of the radioisotope 129I at the NSF-Arizona AMS laboratory

D. L. Biddulph, J. W. Beck, G. S. Burr, D. J. Donahue, A. L. Hatheway, A. J.T. Jull

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


With the recent addition of a high-energy analysis beam line, the capability to measure 129I has been developed at the NSF-Arizona AMS Laboratory. Preliminary measurements have been made using the +4 and +5 charge states at 2.1 MV with a gas stripper. The current system employs a 90° injection magnet (r=0.36 m) following the ion source. Analysis components following the accelerator include an electrostatic quadrupole doublet lens, a 15° electrostatic deflector (r=1.25 m), a 90° analysis magnet (r=1.27 m) and a 77° spherical electrostatic analyzer (r=2.0 m). Detection of 129I is accomplished with a silicon surface barrier detector. Operation of this system with various iodine samples will be discussed.

Original languageEnglish (US)
Pages (from-to)693-698
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Issue number1-4
StatePublished - 2000


  • Accelerator mass spectrometry
  • Iodine-129

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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