Direct actinide assay with surface passivated silicon diodes

R. S. Addleman*, M. J. O'Hara, T. Marks, J. W. Grate, O. B. Egorov

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


The determination of transuranic (TRU) content in nuclear wastes, reactor materials, process solutions, and various other matrices is required in support of material assessment, environmental restoration, and waste processing activities. We have found that direct measurement of TRU is possible using surface passivated ion implanted planar silicon diode detectors. The performance and durability of modern silicon diodes enables direct detection of alpha-particles, with retention of some spectral information, through small air gaps or under direct contact with liquid or solid samples. We will present results on the performance of silicon diode detectors for the determination of TRU in liquids.

Original languageEnglish (US)
Pages (from-to)295-300
Number of pages6
JournalJournal of Radioanalytical and Nuclear Chemistry
Issue number2
StatePublished - 2005

ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis


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