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 measurements of TRU is possible using passivated implanted planar silicon (PIPS) diode detectors. The performance and durability of the modern PIPS 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. Direct assay of solutions and meterials can provide rapid data solutions with high-levels or beta/gamma emitters in remote locations without human exposure or waste generation issues. Result are given on performance of PIPS detectors for the determination of TRUs in liquid and solid samples.
Revised: June 17, 2005 |
Published: January 1, 2005
Citation
Addleman R.S., M.J. O'Hara, T.D. Marks, J.W. Grate, and O.B. Egorov. 2005.Direct Actinide Assay with Surface Passivated Silicon Diodes.Journal of Radioanalytical and Nuclear Chemistry 263, no. 2:295-300.PNNL-SA-39879.