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DOE nuclear cleanup costs, schedule delays continue to rise, GAO says
The Department of Energy’s Office of Environmental Management faces significant cost increases, schedule delays, and data management issues in completing nuclear waste cleanup projects, according to a new report from the U.S. Government Accountability Office.
Gad Shani
Nuclear Technology | Volume 51 | Number 1 | November 1980 | Pages 83-86
Technical Paper | Technique | doi.org/10.13182/NT80-A32559
Articles are hosted by Taylor and Francis Online.
A method for high fast neutron flux measurement using the reaction 93Nb(n,n')93mNb was tested. The method is based on measurement of niobium x rays. An average cross section over a measured 252Cf neutron spectrum was calculated and found to be = 1.88 ± 3% b. Here, 93mNb has a metastable level at 30 keV with a half -life of 13.6 yr. The branching ratio of the gamma rays emitted from this level was found to be ∼4%. The measurement was done by measuring the 16.52 + 16.62 keV niobium x-ray lines with an Si(Li) detector.
