IAEA-NDS ENDF Download System, v-2008-07-22 0 0 0 0 1.102300+4 2.279200+1 1 0 0 16311 1451 1 0.000000+0 0.000000+0 0 0 0 06311 1451 2 0.000000+0 0.000000+0 0 0 49 56311 1451 3 11-Na- 23 ORNL EVAL-DEC77 D.C.LARSON 6311 1451 4 DIST-MAR84 790711 6311 1451 5 *** DOCUMENTATION FOR DOSIMETRY SPECIAL APPLICATIONS FILE*** 6311 1451 6 FILE 2 ***** 6311 1451 7 RESONANCE PARAMETERS ARE USED FROM 600 EV TO 500 KEV. THE THERMAL 6311 1451 8 CAPTURE CROSS SECTION IS GIVEN AS 528 MB, IN AGREEMENT WITH THE 6311 1451 9 EXPERIMENTAL RESULTS OF 526.9+-4.5 MB(RY71), AS WELL AS EARLIER 6311 1451 10 RESULTS SUMMARIZED IN REF RY71. USING RESONANCE PARAMETERS 6311 1451 11 E=2.81 KEV, GN=376 EV AND GG=0.353 EV FOR THE LARGE 2.81 KEV 6311 1451 12 RESONANCE GIVES THE CORRECT THERMAL CAPTURE VALUE USING A BREIT- 6311 1451 13 WIGNER SHAPE, AND THIS FORM IS USED TO CALCULATE THE CAPTURE CROSS6311 1451 14 SECTION FROM 1.E-5 EV TO 600 EV. THE CAPTURE WIDTH GG=0.353 EV IS6311 1451 15 CONSISTENT WITH A RECENT RESULT BY WILSON, JACKSON AND THOMAS 6311 1451 16 (WI77) WHERE THEY FIND 0.24