ENTRY 12833 20130322 13891283300000001 SUBENT 12833001 20130322 13891283300100001 BIB 10 23 1283300100002 TITLE Measurement of the energy dependence of prompt neutron 1283300100003 emission from 233U, 235U, 239Pu, and 241Pu for E=0.0051283300100004 to 10 ev relative to emission from spontaneous fission1283300100005 of 252Cf 1283300100006 AUTHOR (R.Gwin, R.R.Spencer, R.W.Ingle) 1283300100007 INSTITUTE (1USAORL) 1283300100008 REFERENCE (J,NSE,87,381,1984) 1283300100009 FACILITY (LINAC,1USAORL) ORELA 1283300100010 METHOD (TOF) 21.65 m flight path 1283300100011 DETECTOR (STANK) Gd-loaded NE213 liquid scintillator tank 1283300100012 (FISCH) Centred in the liquid scinillaotr tank 1283300100013 CORRECTION Corrections were done for 1283300100014 - displacement of samples from centre of detector, 1283300100015 - false fissions, 1283300100016 - deadtime and background of detection system, 1283300100017 - neutron detection efficiency, 1283300100018 - impurity fission, 1283300100019 - delayed gamma rays from fission to detector system. 1283300100020 STATUS (APRVD) R.Gwin, 1984-03-02 1283300100021 HISTORY (19830829C) 1283300100022 (19840918A) REFERENCE update. 1283300100023 (19860528A) BIB update. 1283300100024 (20130322U) On. CORRECTION added 1283300100025 ENDBIB 23 0 1283300100026 NOCOMMON 0 0 1283300100027 ENDSUBENT 26 0 1283300199999 SUBENT 12833002 20130322 13891283300200001 BIB 6 24 1283300200002 REACTION ((92-U-233(N,F),PR,NU,,AV)/(98-CF-252(0,F),PR,NU,,AV)) 1283300200003 SAMPLE (92-U-233,ENR=0.99969) 1283300200004 (92-U-234,ENR=0.000004) 1283300200005 (92-U-235,ENR=0.00020) 1283300200006 (92-U-236,ENR=0.000003) 1283300200007 (92-U-238,ENR=0.00008) 1283300200008 CORRECTION Correction factor applied for differences in the 1283300200009 distribution of fission neutrons between 252Cf 1283300200010 and 233U = 0.9994 1283300200011 ERR-ANALYS (ERR-S) Statistical uncertainty 1283300200012 (ERR-1) Systematic uncertainty due to 1283300200013 - impurity fissions; 1283300200014 - effect of foil thickness; 1283300200015 - effect of delayed gamma-ray. 1283300200016 Uncorrelated among data sets. 1283300200017 (ERR-2) Systematic uncertainty due to 1283300200018 - pulse pileup; 1283300200019 - differences in fission neutron energy 1283300200020 spectrum between isotopes; 1283300200021 - displacement of isotopes from center of 1283300200022 neutron detector. 1283300200023 Fully correlated among data sets. 1283300200024 STATUS (TABLE) Table 3(Data set 2) of Nucl.Sci.Eng.87(1984)3811283300200025 HISTORY (20130322A) On. ERR-ANALYS and ERR-2 moved from 001. 1283300200026 ENDBIB 24 0 1283300200027 COMMON 2 3 1283300200028 ERR-1 ERR-2 1283300200029 PER-CENT PER-CENT 1283300200030 0.05 0.12 1283300200031 ENDCOMMON 3 0 1283300200032 DATA 4 10 1283300200033 EN-MIN EN-MAX DATA ERR-S 1283300200034 EV EV NO-DIM NO-DIM 1283300200035 0.005 0.010 0.6576 0.0032 1283300200036 0.010 0.020 0.6632 0.0020 1283300200037 0.020 0.050 0.6597 0.0013 1283300200038 0.050 0.100 0.6616 0.0015 1283300200039 0.100 0.200 0.6611 0.0022 1283300200040 0.200 0.300 0.6675 0.0035 1283300200041 0.300 0.400 0.6579 0.0044 1283300200042 0.400 0.500 0.6612 0.0052 1283300200043 0.500 1.000 0.6602 0.0032 1283300200044 1.000 10.000 0.6608 0.0015 1283300200045 ENDDATA 12 0 1283300200046 ENDSUBENT 45 0 1283300299999 SUBENT 12833003 20130322 13891283300300001 BIB 6 25 1283300300002 REACTION ((92-U-235(N,F),PR,NU,,AV)/(98-CF-252(0,F),PR,NU,,AV)) 1283300300003 SAMPLE (92-U-235,ENR=0.9990) 1283300300004 (92-U-234,ENR=0.0003) 1283300300005 (92-U-236,ENR=0.0001) 1283300300006 (92-U-238,ENR=0.0006) 1283300300007 CORRECTION Correction factor applied for differences in the 1283300300008 distribution of fission neutrons between 252Cf 1283300300009 and 235U = 0.9992 1283300300010 ERR-ANALYS (ERR-S) Statistical uncertainty 1283300300011 (ERR-1) Systematic uncertainty due to 1283300300012 - impurity fissions; 1283300300013 - effect of foil thickness; 1283300300014 - effect of delayed gamma-ray. 1283300300015 Uncorrelated among data sets. 1283300300016 (ERR-2) Systematic uncertainty due to 1283300300017 - pulse pileup; 1283300300018 - differences in fission neutron energy 1283300300019 spectrum between isotopes; 1283300300020 - displacement of isotopes from center of 1283300300021 neutron detector. 1283300300022 Fully correlated among data sets. 1283300300023 STATUS (TABLE) Table 3(Data set 2) of Nucl.Sci.Eng.87(1984)3811283300300024 (COREL,12834002) Data set 3 1283300300025 (COREL,12906003) Data set 1 1283300300026 HISTORY (20130322A) On. ERR-ANALYS and ERR-2 moved from 001. 1283300300027 ENDBIB 25 0 1283300300028 COMMON 2 3 1283300300029 ERR-1 ERR-2 1283300300030 PER-CENT PER-CENT 1283300300031 0.06 0.12 1283300300032 ENDCOMMON 3 0 1283300300033 DATA 4 10 1283300300034 EN-MIN EN-MAX DATA ERR-S 1283300300035 EV EV NO-DIM NO-DIM 1283300300036 0.005 0.010 0.6436 0.0021 1283300300037 0.010 0.020 0.6444 0.0014 1283300300038 0.020 0.050 0.6448 0.0009 1283300300039 0.050 0.100 0.6463 0.0011 1283300300040 0.100 0.200 0.6477 0.0016 1283300300041 0.200 0.300 0.6506 0.0025 1283300300042 0.300 0.400 0.6488 0.0033 1283300300043 0.400 0.500 0.6375 0.0045 1283300300044 0.500 1.000 0.6441 0.0032 1283300300045 1.000 10.000 0.6450 0.0026 1283300300046 ENDDATA 12 0 1283300300047 ENDSUBENT 46 0 1283300399999 SUBENT 12833004 20130322 13891283300400001 BIB 6 23 1283300400002 REACTION ((94-PU-239(N,F),PR,NU,,AV)/(98-CF-252(0,F),PR,NU,,AV))1283300400003 SAMPLE (94-PU-239,ENR=0.99978) 1283300400004 (94-PU-240,ENR=0.00021) 1283300400005 (94-PU-241,ENR=0.00001) 1283300400006 CORRECTION Correction factor applied for differences in the 1283300400007 distribution of fission neutrons between 252Cf 1283300400008 and 239Pu = 0.9996 1283300400009 ERR-ANALYS (ERR-S) Statistical uncertainty 1283300400010 (ERR-1) Systematic uncertainty due to 1283300400011 - impurity fissions; 1283300400012 - effect of foil thickness; 1283300400013 - effect of delayed gamma-ray. 1283300400014 Uncorrelated among data sets. 1283300400015 (ERR-2) Systematic uncertainty due to 1283300400016 - pulse pileup; 1283300400017 - differences in fission neutron energy 1283300400018 spectrum between isotopes; 1283300400019 - displacement of isotopes from center of 1283300400020 neutron detector. 1283300400021 Fully correlated among data sets. 1283300400022 STATUS (TABLE) Table 3(Data set 2) of Nucl.Sci.Eng.87(1984)3811283300400023 (COREL,12906002) Data set 1 1283300400024 HISTORY (20130322A) On. ERR-ANALYS and ERR-2 moved from 001. 1283300400025 ENDBIB 23 0 1283300400026 COMMON 2 3 1283300400027 ERR-1 ERR-2 1283300400028 PER-CENT PER-CENT 1283300400029 0.05 0.12 1283300400030 ENDCOMMON 3 0 1283300400031 DATA 4 10 1283300400032 EN-MIN EN-MAX DATA ERR-S 1283300400033 EV EV NO-DIM NO-DIM 1283300400034 0.005 0.010 0.7651 0.0019 1283300400035 0.010 0.020 0.7650 0.0012 1283300400036 0.020 0.050 0.7657 0.0007 1283300400037 0.050 0.100 0.7650 0.0008 1283300400038 0.100 0.200 0.7620 0.0010 1283300400039 0.200 0.300 0.7605 0.0008 1283300400040 0.300 0.400 0.7606 0.0010 1283300400041 0.400 0.500 0.7568 0.0024 1283300400042 0.500 1.000 0.7611 0.0027 1283300400043 1.000 10.000 0.7629 0.0024 1283300400044 ENDDATA 12 0 1283300400045 ENDSUBENT 44 0 1283300499999 SUBENT 12833005 20130322 13891283300500001 BIB 7 20 1283300500002 REACTION (98-CF-252(0,F),NUM,NU) 1283300500003 REL-REF (O,10954002,R.R.Spencer+,J,NSE,80,603,1982) 1283300500004 =3.773 +/- 0.007 given 1283300500005 ADD-RES var(nu)=1.586 1283300500006 ERR-ANALYS (DATA-ERR) No information on source of uncertainty 1283300500007 (ERR-1) Uncertainty due to neutron detection efficiency1283300500008 (ERR-2) Uncertainty due to pileup parameter 1283300500009 COVARIANCE Correlation coefficients between multiplicities 1283300500010 100 1283300500011 -82 100 1283300500012 -48 79 100 1283300500013 -52 84 72 100 1283300500014 -43 11 -4 -35 100 1283300500015 -1 -43 -69 -50 10 100 1283300500016 14 -55 -74 -69 46 53 100 1283300500017 18 -49 -62 -54 15 69 32 100 1283300500018 11 -25 -30 -27 11 22 43 -22 100 1283300500019 4 -8 -9 -8 2 10 4 31 -57 100 1283300500020 STATUS (TABLE) Table VII of Nucl.Sci.Eng.87(1984)381 1283300500021 HISTORY (20130322C) LV+On 1283300500022 ENDBIB 20 0 1283300500023 COMMON 2 3 1283300500024 ERR-1 ERR-2 1283300500025 PER-CENT PER-CENT 1283300500026 0.15 3.8 1283300500027 ENDCOMMON 3 0 1283300500028 DATA 3 10 1283300500029 PART-OUT DATA DATA-ERR 1283300500030 NO-DIM NO-DIM NO-DIM 1283300500031 0. 0.0021 0.0002 1283300500032 1. 0.0249 0.0008 1283300500033 2. 0.1225 0.0012 1283300500034 3. 0.2722 0.0011 1283300500035 4. 0.3067 0.0008 1283300500036 5. 0.1876 0.0010 1283300500037 6. 0.0680 0.0006 1283300500038 7. 0.0141 0.0002 1283300500039 8. 0.0018 0.0001 1283300500040 9. 0.0001 0.00002 1283300500041 ENDDATA 12 0 1283300500042 ENDSUBENT 41 0 1283300599999 SUBENT 12833006 20130322 13891283300600001 BIB 6 16 1283300600002 REACTION (92-U-233(N,F),NUM,NU,,AV) 1283300600003 ADD-RES var(nu)=1.167 1283300600004 ERR-ANALYS (DATA-ERR) No information on source of uncertainty 1283300600005 (ERR-1) Uncertainty due to neutron detection efficiency1283300600006 (ERR-2) Uncertainty due to pileup parameter 1283300600007 COVARIANCE Correlation coefficients between multiplicities 1283300600008 100 1283300600009 -45 1283300600010 19 -58 100 1283300600011 -8 16 -71 100 1283300600012 -3 -13 18 -62 100 1283300600013 -1 -2 -8 23 -56 100 1283300600014 0 -1 0 -5 22 -58 100 1283300600015 0 0 0 1 -5 22 -59 100 1283300600016 STATUS (TABLE) Table VII of Nucl.Sci.Eng.87(1984)381 1283300600017 HISTORY (20130322C) LV+On 1283300600018 ENDBIB 16 0 1283300600019 COMMON 4 3 1283300600020 EN-MIN EN-MAX ERR-1 ERR-2 1283300600021 EV EV PER-CENT PER-CENT 1283300600022 0.02 0.1 0.15 3.8 1283300600023 ENDCOMMON 3 0 1283300600024 DATA 3 8 1283300600025 PART-OUT DATA DATA-ERR 1283300600026 NO-DIM NO-DIM NO-DIM 1283300600027 0. 0.0244 0.0013 1283300600028 1. 0.1500 0.0034 1283300600029 2. 0.3334 0.0051 1283300600030 3. 0.3240 0.0052 1283300600031 4. 0.1392 0.0038 1283300600032 5. 0.0263 0.0019 1283300600033 6. 0.0025 0.0009 1283300600034 7. 0.0002 0.0002 1283300600035 ENDDATA 10 0 1283300600036 ENDSUBENT 35 0 1283300699999 SUBENT 12833007 20130322 13891283300700001 BIB 6 15 1283300700002 REACTION (92-U-235(N,F),NUM,NU,,AV) 1283300700003 ADD-RES var(nu)=1.200 1283300700004 ERR-ANALYS (DATA-ERR) No information on source of uncertainty 1283300700005 (ERR-1) Uncertainty due to neutron detection efficiency1283300700006 (ERR-2) Uncertainty due to pileup parameter 1283300700007 COVARIANCE Correlation coefficients between multiplicities 1283300700008 100 1283300700009 -37 100 1283300700010 19 -53 100 1283300700011 -11 11 -70 100 1283300700012 -7 -18 15 -57 100 1283300700013 -4 -5 -9 24 -52 100 1283300700014 0 -1 0 -4 20 -53 100 1283300700015 STATUS (TABLE) Table VII of Nucl.Sci.Eng.87(1984)381 1283300700016 HISTORY (20130322C) LV+On 1283300700017 ENDBIB 15 0 1283300700018 COMMON 4 3 1283300700019 EN-MIN EN-MAX ERR-1 ERR-2 1283300700020 EV EV PER-CENT PER-CENT 1283300700021 0.02 0.1 0.15 3.8 1283300700022 ENDCOMMON 3 0 1283300700023 DATA 3 8 1283300700024 PART-OUT DATA DATA-ERR 1283300700025 NO-DIM NO-DIM NO-DIM 1283300700026 0. 0.0291 0.0009 1283300700027 1. 0.1660 0.0024 1283300700028 2. 0.3362 0.0034 1283300700029 3. 0.3074 0.0035 1283300700030 4. 0.1333 0.0026 1283300700031 5. 0.0259 0.0014 1283300700032 6. 0.0021 0.0006 1283300700033 7. 0.0002 0.0002 1283300700034 ENDDATA 10 0 1283300700035 ENDSUBENT 34 0 1283300799999 SUBENT 12833008 20130322 13891283300800001 BIB 6 16 1283300800002 REACTION (94-PU-239(N,F),NUM,NU,,AV) 1283300800003 ADD-RES var(nu)=1.334 1283300800004 ERR-ANALYS (DATA-ERR) No information on source of uncertainty 1283300800005 (ERR-1) Uncertainty due to neutron detection efficiency1283300800006 (ERR-2) Uncertainty due to pileup parameter 1283300800007 COVARIANCE Correlation coefficients between multiplicities 1283300800008 100 1283300800009 -47 100 1283300800010 22 -39 100 1283300800011 -9 22 -67 100 1283300800012 -6 -21 14 -65 100 1283300800013 -4 -10 -16 26 -53 100 1283300800014 -1 -6 -2 -7 29 -59 100 1283300800015 0 -2 -1 2 -4 25 -60 100 1283300800016 STATUS (TABLE) Table VII of Nucl.Sci.Eng.87(1984)381 1283300800017 HISTORY (20130322C) LV+On 1283300800018 ENDBIB 16 0 1283300800019 COMMON 4 3 1283300800020 EN-MIN EN-MAX ERR-1 ERR-2 1283300800021 EV EV PER-CENT PER-CENT 1283300800022 0.02 0.1 0.15 3.8 1283300800023 ENDCOMMON 3 0 1283300800024 DATA 3 8 1283300800025 PART-OUT DATA DATA-ERR 1283300800026 NO-DIM NO-DIM NO-DIM 1283300800027 0. 0.0104 0.0006 1283300800028 1. 0.0954 0.0018 1283300800029 2. 0.2728 0.0030 1283300800030 3. 0.3306 0.0033 1283300800031 4. 0.2133 0.0029 1283300800032 5. 0.0644 0.0018 1283300800033 6. 0.0119 0.0010 1283300800034 7. 0.0013 0.0004 1283300800035 ENDDATA 10 0 1283300800036 ENDSUBENT 35 0 1283300899999 SUBENT 12833009 20130322 13891283300900001 BIB 6 6 1283300900002 REACTION (92-U-233(N,F),,NU,,AV) 1283300900003 MONITOR (98-CF-252(0,F),,NU) 1283300900004 MONIT-REF (10954002,R.R.Spencer+,J,NSE,80,603,1982) 1283300900005 ERR-ANALYS (DATA-ERR) No information on source of uncertainty 1283300900006 STATUS (TABLE) Table VII of Nucl.Sci.Eng.87(1984)381 1283300900007 HISTORY (20130322C) On 1283300900008 ENDBIB 6 0 1283300900009 NOCOMMON 0 0 1283300900010 DATA 6 1 1283300900011 EN-MIN EN-MAX DATA DATA-ERR MONIT MONIT-ERR 1283300900012 EV EV PRT/FIS PRT/FIS PRT/FIS PRT/FIS 1283300900013 0.02 0.1 2.494 0.006 3.773 0.007 1283300900014 ENDDATA 3 0 1283300900015 ENDSUBENT 14 0 1283300999999 SUBENT 12833010 20130322 13891283301000001 BIB 6 6 1283301000002 REACTION (92-U-235(N,F),,NU,,AV) 1283301000003 MONITOR (98-CF-252(0,F),,NU) 1283301000004 MONIT-REF (10954002,R.R.Spencer+,J,NSE,80,603,1982) 1283301000005 ERR-ANALYS (DATA-ERR) No information on source of uncertainty 1283301000006 STATUS (TABLE) Table VII of Nucl.Sci.Eng.87(1984)381 1283301000007 HISTORY (20130322C) On 1283301000008 ENDBIB 6 0 1283301000009 NOCOMMON 0 0 1283301000010 DATA 6 1 1283301000011 EN-MIN EN-MAX DATA DATA-ERR MONIT MONIT-ERR 1283301000012 EV EV PRT/FIS PRT/FIS PRT/FIS PRT/FIS 1283301000013 0.02 0.1 2.437 0.005 3.773 0.007 1283301000014 ENDDATA 3 0 1283301000015 ENDSUBENT 14 0 1283301099999 SUBENT 12833011 20130322 13891283301100001 BIB 6 6 1283301100002 REACTION (94-PU-239(N,F),,NU,,AV) 1283301100003 MONITOR (98-CF-252(0,F),,NU) 1283301100004 MONIT-REF (10954002,R.R.Spencer+,J,NSE,80,603,1982) 1283301100005 ERR-ANALYS (DATA-ERR) No information on uncertainty 1283301100006 STATUS (TABLE) Table VII of Nucl.Sci.Eng.87(1984)381 1283301100007 HISTORY (20130322C) On 1283301100008 ENDBIB 6 0 1283301100009 NOCOMMON 0 0 1283301100010 DATA 5 1 1283301100011 EN-MIN EN-MAX DATA MONIT MONIT-ERR 1283301100012 EV EV PRT/FIS PRT/FIS PRT/FIS 1283301100013 0.02 0.1 2.889 3.773 0.007 1283301100014 ENDDATA 3 0 1283301100015 ENDSUBENT 14 0 1283301199999 ENDENTRY 11 0 1283399999999