ENTRY 20476 20190722 22812047600000001 SUBENT 20476001 20190722 22812047600100001 BIB 12 35 2047600100002 TITLE Ratio of the capture and fission cross-sections of 2047600100003 239 in the energy range 100 eV to 30 keV 2047600100004 AUTHOR (M.G.Schomberg, M.G.Sowerby, D.A.Boyce, K.J.Murray, 2047600100005 D.L.Sutton) 2047600100006 INSTITUTE (2UK HAR) 2047600100007 REFERENCE (C,70HELSINKI,1,315,1970) 2047600100008 (C,67KARLSR,1,289,1967) 2047600100009 Result with original detector. Superseded. 2047600100010 FACILITY (LINAC,2UK HAR) Harwell 45-MeV linear accelerator 2047600100011 INC-SOURCE (PHOTO) 2047600100012 SAMPLE 3 Samples -0.0012, 0.000579, 0.00029 at/b thick- 2047600100013 5.08 cm diam., containing Al (1.07%) and Pu-240 (0.7%)2047600100014 1 Sample -0.0044 at/b thick- 7.4 cm diam. containing 2047600100015 1.8% of Pu-240. 2047600100016 METHOD (TOF) Flight path of 34.86 m, neutron burst width 2047600100017 (unmoderated) of 220 nsec, time channel width of 2047600100018 125 nsec, nominal resolution of 7.2 nsec/m. 2047600100019 (PSD) To reject events by gamma-rays for promopt 2047600100020 fission neutron detections 2047600100021 DETECTOR (SCIN) for detection of fission neutrons and 2047600100022 gammas 2047600100023 (GLASD) 6Li glass scintillator (3.2 mm thick, 6.35 cm 2047600100024 in diam) to monitor the incident spectrum 2047600100025 PART-DET (G) Capture gammas from 239Pu(n,g) and capture of 2047600100026 fission neutrons captured by scintillators 2047600100027 (N) Prompt fission neutrons 2047600100028 ERR-ANALYS The errors due to statistics and background were 2047600100029 evaluated. Errors due to normalization were also 2047600100030 included. Multiple scatt. effects and the Pu-240 2047600100031 impurity have been neglected. 2047600100032 HISTORY (19711229C) 2047600100033 (20170721A) SD:Updated to new date formats,lower case. 2047600100034 Small correction in author's list. Important 2047600100035 alterations in Subents. 2047600100036 (20190722A) On. Major revisions in 002-006. 2047600100037 ENDBIB 35 0 2047600100038 NOCOMMON 0 0 2047600100039 ENDSUBENT 38 0 2047600199999 SUBENT 20476002 20190722 22812047600200001 BIB 5 10 2047600200002 REACTION (94-PU-239(N,G)94-PU-240,,SIG,,AV) 2047600200003 MONITOR (94-PU-239(N,F),,SIG,,AV) 2047600200004 ERR-ANALYS (DATA-ERR) No information on the source of uncertainty 2047600200005 STATUS (TABLE) Table VI of 70Helsinki,1,315 (1970) 2047600200006 (DEP,20476003) fission cross sections 2047600200007 (DEP,20476005) alpha values 2047600200008 HISTORY (20170721A) SD: STATUS 'DEP' , ERR-ANANLYS were added. 2047600200009 Meaningless zeros were deleted from the data. 2047600200010 (20190722A) On. Data in eV in the article adopted. 2047600200011 ERR-ANALYS updated. 2047600200012 ENDBIB 10 0 2047600200013 NOCOMMON 0 0 2047600200014 DATA 4 21 2047600200015 EN-MIN EN-MAX DATA DATA-ERR 2047600200016 EV EV B B 2047600200017 100. 200. 17.81 2.21 2047600200018 200. 300. 14.56 2.40 2047600200019 300. 400. 9.90 1.46 2047600200020 400. 500. 4.29 1.09 2047600200021 500. 600. 9.88 1.21 2047600200022 600. 700. 6.91 0.77 2047600200023 700. 800. 5.16 0.72 2047600200024 800. 900. 2.85 0.86 2047600200025 900. 1000. 4.42 0.73 2047600200026 1000. 2000. 3.25 0.50 2047600200027 2000. 3000. 3.16 0.46 2047600200028 3000. 4000. 2.27 0.38 2047600200029 4000. 5000. 1.75 0.27 2047600200030 6000. 7000. 1.40 0.24 2047600200031 7000. 8000. 1.27 0.21 2047600200032 8000. 9000. 1.23 0.20 2047600200033 9000. 10000. 1.22 0.19 2047600200034 10000. 15000. 0.89 0.13 2047600200035 15000. 20000. 0.74 0.11 2047600200036 20000. 25000. 0.70 0.10 2047600200037 25000. 30000. 0.55 0.10 2047600200038 ENDDATA 23 0 2047600200039 ENDSUBENT 38 0 2047600299999 SUBENT 20476003 20190722 22812047600300001 BIB 7 18 2047600300002 REACTION (94-PU-239(N,F),,SIG,,AV) 2047600300003 MONITOR (94-PU-239(N,F),,SIG,,AV) 2047600300004 MONIT-REF (10035001,R.Gwin+,R,ORNL-TM-2598,1969) 2047600300005 (12502001,L.M.Bollinger+,C,58GENEVA,15,127,1958) 2047600300006 METHOD Prompt fission neutron detection 2047600300007 ERR-ANALYS (ERR-T) Total error includes: 2047600300008 (ERR-1,1.,2.) statistics and background (1-2%) 2047600300009 (ERR-2) neutron spectrum determination (~1%) 2047600300010 (ERR-3,0.5,1.) efficiency Li-glass detector (0.5-1%) 2047600300011 (ERR-4) nu-bar values (2%) 2047600300012 (MONIT-ERR) Normalization errors (2%) 2047600300013 STATUS (TABLE) Table VI of 70Helsinki,1,315 (1970) 2047600300014 HISTORY (20170430A) SD: ERR-ANALYS was added. DATA-ERR -> ERR-T2047600300015 MONITOR changed (Information that was there moved to 2047600300016 CORRECTION and added to REL-REF). Meaningless zeros 2047600300017 were deleted from the data. 2047600300018 (20190722A) On. Data in eV in the article adopted. 2047600300019 ERR-ANALYS updated. CORECTION deleted. 2047600300020 ENDBIB 18 0 2047600300021 COMMON 6 3 2047600300022 EN-NRM-MIN EN-NRM-MAX MONIT MONIT-ERR ERR-2 ERR-4 2047600300023 EV EV B PER-CENT PER-CENT PER-CENT 2047600300024 10. 20. 104.7 2. 1. 2. 2047600300025 ENDCOMMON 3 0 2047600300026 DATA 4 21 2047600300027 EN-MIN EN-MAX DATA ERR-T 2047600300028 EV EV B B 2047600300029 100. 200. 18.55 0.59 2047600300030 200. 300. 18.43 0.58 2047600300031 300. 400. 8.76 0.30 2047600300032 400. 500. 9.75 0.31 2047600300033 500. 600. 15.68 0.50 2047600300034 600. 700. 4.80 0.19 2047600300035 700. 800. 5.49 0.28 2047600300036 800. 900. 5.38 0.19 2047600300037 900. 1000. 8.04 0.27 2047600300038 1000. 2000. 4.71 0.16 2047600300039 2000. 3000. 3.43 0.13 2047600300040 3000. 4000. 3.11 0.11 2047600300041 4000. 5000. 2.43 0.08 2047600300042 6000. 7000. 2.03 0.07 2047600300043 7000. 8000. 2.16 0.07 2047600300044 8000. 9000. 2.20 0.08 2047600300045 9000. 10000. 1.90 0.06 2047600300046 10000. 15000. 1.72 0.06 2047600300047 15000. 20000. 1.60 0.05 2047600300048 20000. 25000. 1.56 0.05 2047600300049 25000. 30000. 1.62 0.06 2047600300050 ENDDATA 23 0 2047600300051 ENDSUBENT 50 0 2047600399999 SUBENT 20476004 20190722 22812047600400001 BIB 5 10 2047600400002 REACTION (94-PU-239(N,F),,SIG,,AV,DERIV) 2047600400003 ANALYSIS Regrouping of fission cross sections in 003 2047600400004 ERR-ANALYS (DATA-ERR) No information on the source of uncertainty 2047600400005 STATUS (TABLE) Table VII of 70Helsinki,1,315 (1970) 2047600400006 (DEP,20476003) Data with thinner group structures 2047600400007 HISTORY (20170430A) SD: STATUS 'DEP', ERR-ANALYS were added. 2047600400008 MONITOR deleted. Meaningless zeros were deleted from 2047600400009 the data. 2047600400010 (20190722A) On. Data in keV in the article adopted. 2047600400011 ERR-ANALYS updated. REACITON(SF9): DERIV added. 2047600400012 ENDBIB 10 0 2047600400013 NOCOMMON 0 0 2047600400014 DATA 4 5 2047600400015 EN-MIN EN-MAX DATA DATA-ERR 2047600400016 KEV KEV B B 2047600400017 0.1 1.0 10.54 2047600400018 1.0 5.0 3.42 2047600400019 6.0 10.0 2.07 2047600400020 10.0 20.0 1.66 0.06 2047600400021 20.0 30.0 1.59 0.06 2047600400022 ENDDATA 7 0 2047600400023 ENDSUBENT 22 0 2047600499999 SUBENT 20476005 20190722 22812047600500001 BIB 7 20 2047600500002 REACTION (94-PU-239(N,ABS),,ALF,,AV) 2047600500003 MONITOR (94-PU-239(N,ABS),,ALF,,RES) 2047600500004 CORRECTION It has been assumed that multiple-scattering effects 2047600500005 are negligible. 2047600500006 No corrections have been made for the effect of 240Pu 2047600500007 in the sample. 2047600500008 ERR-ANALYS Possible errors due to the sources other than those 2047600500009 mentioned below are neglected. 2047600500010 (ERR-T) Total error includes: 2047600500011 (ERR-1) Statistics and background 2047600500012 (ERR-2) Normalization 2047600500013 (ERR-3) nu-bar (propagated from 2% error in nu-bar) 2047600500014 ADD-RES Evaluated alpha values of well-resolved low energy 2047600500015 resonances used for normalization of the alpha values 2047600500016 in Table III of 70Helsinki,1,315 (1970) 2047600500017 STATUS (TABLE) Table V of 70Helsinki,1,315 (1970) 2047600500018 HISTORY (20170430A) SD: ERR-ANALYS, CORRECTION were added. 2047600500019 DATA-ERR -> ERR-T. MONITOR update. Meaningless zeros 2047600500020 were deleted from the data. 2047600500021 (20190722A) On. Energy-dependent ERR-2 values added. 2047600500022 ENDBIB 20 0 2047600500023 NOCOMMON 0 0 2047600500024 DATA 7 22 2047600500025 EN-MIN EN-MAX DATA ERR-1 ERR-2 ERR-3 2047600500026 ERR-T 2047600500027 EV EV NO-DIM NO-DIM NO-DIM NO-DIM 2047600500028 NO-DIM 2047600500029 100. 200. 0.96 0.090 0.049 0.052 2047600500030 0.115 2047600500031 200. 300. 0.79 0.109 0.045 0.049 2047600500032 0.128 2047600500033 300. 400. 1.13 0.141 0.053 0.056 2047600500034 0.161 2047600500035 400. 500. 0.44 0.095 0.036 0.042 2047600500036 0.110 2047600500037 500. 600. 0.63 0.045 0.041 0.045 2047600500038 0.075 2047600500039 600. 700. 1.44 0.120 0.061 0.062 2047600500040 0.148 2047600500041 700. 800. 0.94 0.103 0.048 0.052 2047600500042 0.125 2047600500043 800. 900. 0.53 0.150 0.038 0.044 2047600500044 0.161 2047600500045 900. 1000. 0.55 0.069 0.039 0.044 2047600500046 0.090 2047600500047 1000. 2000. 0.69 0.082 0.042 0.047 2047600500048 0.104 2047600500049 2000. 3000. 0.92 0.107 0.048 0.051 2047600500050 0.128 2047600500051 3000. 4000. 0.73 0.100 0.043 0.047 2047600500052 0.118 2047600500053 4000. 5000. 0.72 0.086 0.043 0.047 2047600500054 0.107 2047600500055 5000. 6000. 0.80 0.081 0.045 0.049 2047600500056 0.105 2047600500057 6000. 7000. 0.69 0.098 0.042 0.047 2047600500058 0.117 2047600500059 7000. 8000. 0.59 0.076 0.040 0.045 2047600500060 0.097 2047600500061 8000. 9000. 0.56 0.068 0.039 0.044 2047600500062 0.089 2047600500063 9000. 10000. 0.64 0.075 0.041 0.046 2047600500064 0.097 2047600500065 10000. 15000. 0.52 0.051 0.038 0.043 2047600500066 0.076 2047600500067 15000. 20000. 0.46 0.039 0.036 0.042 2047600500068 0.068 2047600500069 20000. 25000. 0.45 0.033 0.036 0.042 2047600500070 0.065 2047600500071 25000. 30000. 0.34 0.035 0.034 0.040 2047600500072 0.063 2047600500073 ENDDATA 48 0 2047600500074 ENDSUBENT 73 0 2047600599999 SUBENT 20476006 20190722 22812047600600001 BIB 5 10 2047600600002 REACTION (94-PU-239(N,ABS),,SIG,,AV,DERIV) 2047600600003 ANALYSIS Capture cross section plus fission cross sections 2047600600004 ERR-ANALYS (DATA-ERR) No information on the source of uncertainty 2047600600005 STATUS (TABLE) Table IV of 70Helsinki,1,315 (1970) 2047600600006 (DEP,20476002) capture cross section 2047600600007 (DEP,20476003) fission cross section 2047600600008 HISTORY (20170721A) SD: STATUS 'DEP' was added. Meaningless 2047600600009 zeros were deleted from the data. 2047600600010 (20190722A) On. Data in eV in the article adopted. 2047600600011 REACTION(SF9): DERIV added. 2047600600012 ENDBIB 10 0 2047600600013 NOCOMMON 0 0 2047600600014 DATA 4 21 2047600600015 EN-MIN EN-MAX DATA DATA-ERR 2047600600016 EV EV B B 2047600600017 100. 200. 36.36 2.40 2047600600018 200. 300. 32.99 2.61 2047600600019 300. 400. 18.66 1.55 2047600600020 400. 500. 14.04 1.17 2047600600021 500. 600. 25.56 1.43 2047600600022 600. 700. 11.71 0.85 2047600600023 700. 800. 10.65 0.79 2047600600024 800. 900. 8.23 0.95 2047600600025 900. 1000. 12.46 0.83 2047600600026 1000. 2000. 7.96 0.57 2047600600027 2000. 3000. 6.59 0.51 2047600600028 3000. 4000. 5.38 0.41 2047600600029 4000. 5000. 4.18 0.30 2047600600030 6000. 7000. 3.43 0.27 2047600600031 7000. 8000. 3.43 0.24 2047600600032 8000. 9000. 3.43 0.23 2047600600033 9000. 10000. 3.12 0.21 2047600600034 10000. 15000. 2.61 0.16 2047600600035 15000. 20000. 2.34 0.13 2047600600036 20000. 25000. 2.26 0.13 2047600600037 25000. 30000. 2.17 0.13 2047600600038 ENDDATA 23 0 2047600600039 ENDSUBENT 38 0 2047600699999 ENDENTRY 6 0 2047699999999