The EBR-II X501 Minor Actinide Burning Experiment Page: 7 of 11
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Table 2. Attributes of X51 minor actinide bearing fuel elements
Composition (average analyzed U-20.2Pu-9. 1Zr-i .2Am- 1.3Np
Major impurities (average wto) Si:O.26, Al:O.089, Ca:O.067,
Cr:0.0025, Mg:0.009, Fe:0.001,
U-235 enrichment (nominal) 60%o
Fuel mass 77.5 g
Fuel length 34.3 cm (13.5 in.)
Element length (nominal) 74.9 cm (29.5 in.)
Cladding type HT-9 steel
Cladding OD 5.84 mm (0.230 in.)
Cladding wall 0.457 mm (0.0 18 in.)
Slug diameter 4.27 mm (0.168 in.)
Plenum volume 7.1 cm3
Plenum gas 75He-Ar
Smeared density 750%
Fuel slug density, 99.5%o
XSO1 Postirradiation Examination
A partial postirradiation examination was completed on X50 1, including gamma scanning, optical
microscopy, microprobe analysis, and metallography. The post irradiation examination completed
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Carmack, Jon; Hayes, S. L.; Meyer, M. K. & Tsai, H. The EBR-II X501 Minor Actinide Burning Experiment, article, June 1, 2008; [Idaho Falls, Idaho]. (digital.library.unt.edu/ark:/67531/metadc893878/m1/7/: accessed September 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.