ENTRY 10549 20040517 00001054900000001 SUBENT 10549001 20040517 00001054900100001 BIB 11 20 1054900100002 INSTITUTE (1USASRL) 1054900100003 REFERENCE (J,NSE,55,24,197409) 1054900100004 AUTHOR (C.K.Paulson,E.J.Hennelly) 1054900100005 TITLE Cross-Section Measurement of Plutonium-236 Formation in1054900100006 Plutonium-238 by 237Np(n,2n) Reactions. 1054900100007 FACILITY (REAC,1USASRL) 1054900100008 INC-SPECT Averaged over 235U fission spectrum above 6.8 MeV 1054900100009 Fraction of fission neutrons equal to or above 6.8 MeV 1054900100010 is 0.0168 for 235U thermal-neutron fission. 1054900100011 METHOD Cross section determined from the 236Pu/238Pu ratio 1054900100012 in low assay 238Pu, separated from irradiated fuel 1054900100013 assemblies. 1054900100014 MONITOR Cross section dependent upon fission spectrum accuracy 1054900100015 ERR-ANALYS (DATA-ERR) Data error is about 10%, of which 1054900100016 approximately 5% is due to inaccuracies in the alpha 1054900100017 ratio measurement. 1054900100018 STATUS (APRVD) Approved by author 1975/12/1. 1054900100019 HISTORY (19751016C) 1054900100020 (19830913A) Converted to REACTION formalism 1054900100021 (20040517A) Converted to new date formats, lower case. 1054900100022 ENDBIB 20 0 1054900100023 NOCOMMON 0 0 1054900100024 ENDSUBENT 23 0 1054900199999 SUBENT 10549002 20040517 00001054900200001 BIB 1 1 1054900200002 REACTION (93-NP-237(N,2N)93-NP-236,,SIG,,FIS) 1054900200003 ENDBIB 1 0 1054900200004 NOCOMMON 0 0 1054900200005 DATA 3 1 1054900200006 EN-MIN DATA DATA-ERR 1054900200007 MEV MB MB 1054900200008 6.8 63. 6. 1054900200009 ENDDATA 3 0 1054900200010 ENDSUBENT 9 0 1054900299999 ENDENTRY 2 0 1054999999999