ENTRY 12826 20170721 14321282600000001 SUBENT 12826001 20170721 14321282600100001 BIB 11 26 1282600100002 TITLE Measurements of the 14 MeV fission cross-sections for 1282600100003 235U and 239Pu 1282600100004 AUTHOR (M.Mahdavi, G.F.Knoll, J.C.Robertson) 1282600100005 INSTITUTE (1USAMHG,1USANMX) 1282600100006 REFERENCE (C,82ANTWER,,58,1982) 1282600100007 FACILITY (CCW,1USAMHG) 150 kV accelerator of Univ. Michigan 1282600100008 Neutron Experimental Bay 1282600100009 INC-SOURCE (D-T) 1282600100010 SAMPLE Sample deposit (1 mg/cm2 thick, 0.794 cm diam.) 1282600100011 on Pt foil (0.508 mm thick) 1282600100012 DETECTOR (TRD) Polyester track-etch film for fission events 1282600100013 covering 110 deg arc on a sphere of 5.08 cm radius 1282600100014 centered on the fissionable deposit. 1282600100015 (PROPC) 4pi-beta gas flow proportional counter 1282600100016 for flux monitor foil activity determination 1282600100017 CORRECTION Corrected for 1282600100018 - fragment emission anisotropy 1282600100019 - angular distribution normalization to Lab. 1282600100020 - scattering in Pt backings 1282600100021 - scattering in other structure materials 1282600100022 - foil isotopic composition 1282600100023 - dsigma/dEn adjustment for Fe(n,p) cross section 1282600100024 - detector efficiency 1282600100025 STATUS (APRVD) G.F.Knoll (1983-11-02) 1282600100026 HISTORY (19820812C) 1282600100027 (20170721A) Major rev. in 002 and 003. 004-006 added. 1282600100028 ENDBIB 26 0 1282600100029 NOCOMMON 0 0 1282600100030 ENDSUBENT 29 0 1282600199999 SUBENT 12826002 20170721 14321282600200001 BIB 5 14 1282600200002 REACTION (92-U-235(N,F),,SIG) 1282600200003 MONITOR (26-FE-56(N,P)25-MN-56,,SIG) 1282600200004 (13-AL-27(N,A)11-NA-24,,SIG) 1282600200005 ERR-ANALYS (ERR-T) Total uncertainty (2.2%) including 1282600200006 (ERR-S) Fission track counting (0.84%) 1282600200007 (ERR-1) Fission fragment anisotropy (0.55%) 1282600200008 (ERR-2) Angular dist. normalization to lab (0.48%) 1282600200009 (ERR-3) Total scattering perturbation (0.43%) 1282600200010 (ERR-4) Total geometric error (0.24%) 1282600200011 (ERR-5) Total flux uncertainty (1.5%) 1282600200012 (ERR-6) Deposit masses (0.5%) 1282600200013 STATUS (TABLE) Table III+IV of 82ANTWER,,58,1982 1282600200014 HISTORY (20170721A) On. ERR-ANALYS updated. %-uncertainty 1282600200015 adopted for the total uncertainty 1282600200016 ENDBIB 14 0 1282600200017 COMMON 6 3 1282600200018 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 1282600200019 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 1282600200020 0.55 0.48 0.43 0.24 1.5 0.5 1282600200021 ENDCOMMON 3 0 1282600200022 DATA 5 1 1282600200023 EN EN-ERR DATA ERR-T ERR-S 1282600200024 MEV MEV B PER-CENT PER-CENT 1282600200025 14.63 0.02 2.070 2.2 0.84 1282600200026 ENDDATA 3 0 1282600200027 ENDSUBENT 26 0 1282600299999 SUBENT 12826003 20170721 14321282600300001 BIB 5 14 1282600300002 REACTION (94-PU-239(N,F),,SIG) 1282600300003 MONITOR (26-FE-56(N,P)25-MN-56,,SIG) 1282600300004 (13-AL-27(N,A)11-NA-24,,SIG) 1282600300005 ERR-ANALYS (ERR-T) Total uncertainty (3.7%) including 1282600300006 (ERR-S) Fission track counting (1.13%) 1282600300007 (ERR-1) Fission fragment anisotropy (0.63%) 1282600300008 (ERR-2) Angular dist. normalization to lab (0.48%) 1282600300009 (ERR-3) Total scattering perturbation (0.43%) 1282600300010 (ERR-4) Total geometric error (0.24%) 1282600300011 (ERR-5) Total flux uncertainty (1.4%) 1282600300012 (ERR-6) Deposit masses (1.4%) 1282600300013 STATUS (TABLE) Table III+IV of 82ANTWER,,58,1982 1282600300014 HISTORY (20170721A) On. ERR-ANALYS updated. %-uncertainty 1282600300015 adopted for the total uncertainty 1282600300016 ENDBIB 14 0 1282600300017 COMMON 6 3 1282600300018 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 1282600300019 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 1282600300020 0.63 0.48 0.43 0.24 1.4 1.4 1282600300021 ENDCOMMON 3 0 1282600300022 DATA 5 1 1282600300023 EN EN-ERR DATA ERR-T ERR-S 1282600300024 MEV MEV B PER-CENT PER-CENT 1282600300025 14.63 0.02 2.44 3.7 1.13 1282600300026 ENDDATA 3 0 1282600300027 ENDSUBENT 26 0 1282600399999 SUBENT 12826004 20170721 14321282600400001 BIB 4 16 1282600400002 REACTION ((94-PU-239(N,F),,SIG)/(92-U-235(N,F),,SIG)) 1282600400003 ERR-ANALYS (ERR-T) Total uncertainty (2.3%) including 1282600400004 (ERR-1) 235U Fission track counting (0.84%)1282600400005 (ERR-2) 235U Fission fragment anisotropy (0.55%)1282600400006 (ERR-3) 235U Angular dist. normalization to lab (0.48%)1282600400007 (ERR-4) 235U Total scattering perturbation (0.43%)1282600400008 (ERR-5) 235U Total geometric error (0.24%)1282600400009 (ERR-6) 235U Deposit masses (0.5%)1282600400010 (ERR-7) 239Pu Fission track counting (1.13%)1282600400011 (ERR-8) 239Pu Fission fragment anisotropy (0.63%)1282600400012 (ERR-9) 239Pu Angular dist. normalization to lab(0.48%)1282600400013 (ERR-10) 239Pu Total scattering perturbation (0.43%)1282600400014 (ERR-11) 239Pu Total geometric error (0.24%)1282600400015 (ERR-12) 239Pu Deposit masses (1.4%)1282600400016 STATUS (TABLE) Table III+IV of 82ANTWER,,58,1982 1282600400017 HISTORY (20170721C) On 1282600400018 ENDBIB 16 0 1282600400019 COMMON 12 6 1282600400020 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 1282600400021 ERR-7 ERR-8 ERR-9 ERR-10 ERR-11 ERR-12 1282600400022 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 1282600400023 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 1282600400024 0.84 0.55 0.48 0.43 0.24 0.5 1282600400025 1.13 0.63 0.48 0.43 0.24 1.4 1282600400026 ENDCOMMON 6 0 1282600400027 DATA 4 1 1282600400028 EN EN-ERR DATA ERR-T 1282600400029 MEV MEV NO-DIM PER-CENT 1282600400030 14.63 0.02 1.179 2.3 1282600400031 ENDDATA 3 0 1282600400032 ENDSUBENT 31 0 1282600499999 SUBENT 12826005 20170721 14321282600500001 BIB 5 10 1282600500002 REACTION (92-U-235(N,F),,DA,FF,COS/RSD) 1282600500003 w(theta)=1+a*cos**2(theta) 1282600500004 METHOD Detection of fragments at 0, 15, 30, 60, 75 and 90 deg 1282600500005 ERR-ANALYS (ERR-T) Total uncertainty including 1282600500006 (ERR-1) Finize detector size (~1%) 1282600500007 (ERR-2) Variation in incident neutron angle (~2.8%) 1282600500008 (ERR-3) Thermal fission contamination (~0.8%) 1282600500009 (ERR-4,,1.) Finite angular spread (~<1%) 1282600500010 STATUS (TABLE) Text (p59) of 82ANTWER,,58,1982 1282600500011 HISTORY (20170721C) On 1282600500012 ENDBIB 10 0 1282600500013 COMMON 3 3 1282600500014 ERR-1 ERR-2 ERR-3 1282600500015 PER-CENT PER-CENT PER-CENT 1282600500016 1. 2.8 0.8 1282600500017 ENDCOMMON 3 0 1282600500018 DATA 5 1 1282600500019 EN EN-ERR NUMBER DATA ERR-T 1282600500020 MEV MEV NO-DIM NO-DIM NO-DIM 1282600500021 14.63 0.02 2. 0.426 0.024 1282600500022 ENDDATA 3 0 1282600500023 ENDSUBENT 22 0 1282600599999 SUBENT 12826006 20170721 14321282600600001 BIB 5 10 1282600600002 REACTION (94-PU-239(N,F),,DA,FF,COS/RSD) 1282600600003 w(theta)=1+a*cos**2(theta) 1282600600004 METHOD Detection of fragments at 0, 15, 30, 60, 75 and 90 deg 1282600600005 ERR-ANALYS (ERR-T) Total uncertainty including 1282600600006 (ERR-1) Finize detector size (~1%) 1282600600007 (ERR-2) Variation in incident neutron angle (~2.8%) 1282600600008 (ERR-3) Thermal fission contamination (~0.8%) 1282600600009 (ERR-4,,1.) Finite angular spread (~<1%) 1282600600010 STATUS (TABLE) Text (p59) of 82ANTWER,,58,1982 1282600600011 HISTORY (20170721C) On 1282600600012 ENDBIB 10 0 1282600600013 COMMON 3 3 1282600600014 ERR-1 ERR-2 ERR-3 1282600600015 PER-CENT PER-CENT PER-CENT 1282600600016 1. 2.8 0.8 1282600600017 ENDCOMMON 3 0 1282600600018 DATA 5 1 1282600600019 EN EN-ERR NUMBER DATA ERR-T 1282600600020 MEV MEV NO-DIM NO-DIM NO-DIM 1282600600021 14.63 0.02 2. 0.295 0.024 1282600600022 ENDDATA 3 0 1282600600023 ENDSUBENT 22 0 1282600699999 ENDENTRY 6 0 1282699999999