A Generalized Finite Source Calibration Factor: A Natural Improvement to the Finite Source Correction Factor for Uranium Holdup Measurements

Gunn, C.A. ; Oberer, R.B. ; chiang, L.G. ; Ceo, R.N.

Oak Ridge Y-12 Plant

关键词: Calibration;    98 Nuclear Disarmament, Safeguards, And Physical Protection;    Uranium;    Geometry;    11 Nuclear Fuel Cycle And Fuel Materials;   

DOI  :  10.2172/809156
RP-ID  :  Y/DX-2525
RP-ID  :  AC05-00OR22800
RP-ID  :  809156

美国|英语

来源: UNT Digital Library

【 摘 要 】

This paper proposes refinements to the finite source correction factor used in holdup measurements. Specifically it focuses on a more general method to estimate the average detector response for a finite source. This proposed method for the average detector response is based directly on the Generalized Geometry Holdup (GGH) assay method. First, the finite source correction factor as originally proposed is reviewed in this paper. Following this review the GGH assay method is described. Lastly, a new finite area calibration factor based on GGH is then proposed for finite point and line sources. As an alternative to the direct use of the finite arca calibration factor, finite source correction factors are also derived from this calibration factor. This new correction factor can be used in a manner similar to the finite source correction factor as currently implemented.