ENTRY 20576 20181001 22732057600000001 SUBENT 20576001 20181001 22732057600100001 BIB 17 68 2057600100002 TITLE Measurement of the energy spectrum of prompt 2057600100003 neutrons from the fission of Pu239 by 0.215 MeV 2057600100004 neutrons 2057600100005 AUTHOR (H.H.Knitter) 2057600100006 INSTITUTE (2ZZZGEL) 2057600100007 REFERENCE (J,AKE,26,76,1975) Main reference. Graphs given. 2057600100008 FACILITY (VDG,2ZZZGEL) 3 MeV Van de Graaff of Geel lab. 2057600100009 INC-SOURCE (P-LI7) Li-7(P,N)Be-7 reaction in a Li-F target of 2057600100010 326.E-6 g/cm2 thickness. Average proton current 2057600100011 4.5 micro-A, pulse width 1 ns. repetition rate 2057600100012 1 MHz 2057600100013 INC-SPECT .Mean neutron beam energy 0.215 MeV. 2057600100014 .Neutron beam energy spread is 32 keV. 2057600100015 SAMPLE (94-PU-239,ENR=0.9891) Isotopic composition 2057600100016 98.91% Pu-239, 1.09% Pu-240. Plutonium cylinder, 2057600100017 1.2 cm diam., 2.5 cm length, 54.803-g weight. 2057600100018 Canned in zirkalloy container with 0.2 mm wall 2057600100019 thickness 2057600100020 METHOD (TOF) 2057600100021 REL-REF (M,22401001,H.Knitter,J,AKE,22,84,1972) Method of 2057600100022 corrections calculation 2057600100023 (C,,T.N.Taddeucci+,J,NDS,123,135,2015) 2057600100024 DETECTOR (SCIN) NE224 liquid scintillator,5 cm diameter 3.8 cm 2057600100025 length, with low noise photomultiplier RCA-8850. 2057600100026 Placed at 90 degree relative to proton beam and at 2057600100027 1.972 m from the axis of plutonium sample. 2057600100028 .Another similar detector used for monitoring of the 2057600100029 neutron flux placed at -35 degree relative to proton 2057600100030 beam and distance 3.20 m from the target 2057600100031 .Detector efficiencies measured at several energies 2057600100032 using many reactions. 2057600100033 (1-H-3(P,N)2-HE-3,,SIG) 2057600100034 (1-H-2(D,N)2-HE-3,,SIG) 2057600100035 (4-BE-9(A,N)6-C-12,,SIG) 2057600100036 (1-H-1(N,EL)1-H-1,,SIG) 2057600100037 (3-LI-7(P,N)4-BE-7,,DA) At zero angle 2057600100038 EN-SEC .Good agreement of fission neutron spectrum with 2057600100039 Maxwellian 2057600100040 CRITIQUE T.N.Taddeucchi et al. (2015): Multiple scattering 2057600100041 effects are present and were likely severely 2057600100042 underestimated in the data analysis. 2057600100043 ADD-RES .Maxwellian fit of the data gives E-bar=2.12+-0.01MeV 2057600100044 .Fit with the Watt formula gives 2057600100045 E-bar=2.116-MeV,t=0.9649-MeV,Ef=0.6686-MeV. 2057600100046 .Model independent average energy gives 2.125+- 2057600100047 0.035 MeV. 2057600100048 .Average of all mean fission neutron energies gives 2057600100049 E-bar=2.136+-0.045MeV 2057600100050 STATUS (TABLE) Numerical values of neutron spectrum given in 2057600100051 private communication from H.H.Knitter, 1976. 2057600100052 The average fission neutron energy calculated in text 2057600100053 of Atomkernenergie,26(1975)76. 2057600100054 CORRECTION .Background. Subtraction of prompt gamma rays from 2057600100055 the sample and gamma rays of the target scattered 2057600100056 in sample. 2057600100057 Secondary interactions of fission neutrons in the 2057600100058 sample accounted, method described in reference 2057600100059 C,72VIENNA,,127,1972. 2057600100060 HISTORY (19760608C) 2057600100061 (20110707A) Date is corrected to 8 digits format. 2057600100062 Upper case text converted to the lower one.2057600100063 (20110810A) Last checking has been done. 2057600100064 (20131210U) SD: Comments were added to ERR-1 (see 2057600100065 ERR-ANALYS) in Subent 003 2057600100066 (20181001U) SD: CRITIQUE and ref. to REL-REF were 2057600100067 added. ERR-ANALYS deleted (specified in other Subents).2057600100068 MONITOR deleted (used for detector efficiency 2057600100069 measurement; info moved to DETECTOR). 2057600100070 ENDBIB 68 0 2057600100071 COMMON 2 3 2057600100072 EN EN-RSL 2057600100073 KEV KEV 2057600100074 215. 32. 2057600100075 ENDCOMMON 3 0 2057600100076 ENDSUBENT 75 0 2057600199999 SUBENT 20576002 20110810 22272057600200001 BIB 4 7 2057600200002 REACTION (94-PU-239(N,F)0-NN-1,PR,KE,,,DERIV) Average of all 2057600200003 average fission neutron energies. 2057600200004 ERR-ANALYS (DATA-ERR) Not defined explicitly. 2057600200005 Supposed total error by compiler. 2057600200006 STATUS (TABLE) From text of J,AKE,26,76,1975 2057600200007 (DEP,20576004) 2057600200008 HISTORY (20110810U) BIB information corrected. 2057600200009 ENDBIB 7 0 2057600200010 NOCOMMON 0 0 2057600200011 DATA 2 1 2057600200012 DATA DATA-ERR 2057600200013 MEV MEV 2057600200014 2.136 0.045 2057600200015 ENDDATA 3 0 2057600200016 ENDSUBENT 15 0 2057600299999 SUBENT 20576003 20131210 22382057600300001 BIB 4 14 2057600300002 REACTION (94-PU-239(N,F),PR,NU/DE,,REL) Reference quantity 2057600300003 not given 2057600300004 ERR-ANALYS (DATA-ERR) Not specified 2057600300005 (ERR-1) About 2% between 0.2 and 2.5 MeV, and above 2057600300006 this energy it increases up to 5% at 19 MeV 2057600300007 STATUS (TABLE) Obtained from H.Knitter by letter 2057600300008 corresponds to Fig. 2 of J,ANE,76,1975. 2057600300009 (COREL,20576005) 2057600300010 HISTORY (20110810A) REACTION code SF4, SF5, SF6, SF7 changed 2057600300011 from ",PR,DE,N" to "0-NN-1,PR,NU/DE,". 2057600300012 Status code and errors specified. Data units changed 2057600300013 from 1/MEV to ARB-UNITS. 2057600300014 (20131210U) SD: Comments from D.Neudecker were added 2057600300015 to ERR-1 (see ERR-ANALYS) 2057600300016 ENDBIB 14 0 2057600300017 NOCOMMON 0 0 2057600300018 DATA 5 183 2057600300019 E E-RSL DATA DATA-ERR ERR-1 2057600300020 MEV MEV ARB-UNITS ARB-UNITS PER-CENT 2057600300021 2.8000E-01 1.0000E-02 6.6800E+01 2.5000E+00 2. 2057600300022 3.1000E-01 1.0000E-02 7.0200E+01 2.4000E+00 2. 2057600300023 3.4000E-01 1.0000E-02 6.5100E+01 2.2000E+00 2. 2057600300024 3.6000E-01 1.0000E-02 7.0500E+01 2.2000E+00 2. 2057600300025 3.9000E-01 1.0000E-02 6.8800E+01 2.1000E+00 2. 2057600300026 4.1000E-01 1.0000E-02 7.4200E+01 2.1000E+00 2. 2057600300027 4.4000E-01 1.0000E-02 7.5600E+01 2.2000E+00 2. 2057600300028 4.6000E-01 1.0000E-02 7.4800E+01 2.1000E+00 2. 2057600300029 4.9000E-01 1.0000E-02 7.4800E+01 2.1000E+00 2. 2057600300030 5.1000E-01 1.0000E-02 7.3600E+01 2.0000E+00 2. 2057600300031 5.4000E-01 1.0000E-02 7.4200E+01 2.0000E+00 2. 2057600300032 5.6000E-01 1.0000E-02 7.5700E+01 2.0000E+00 2. 2057600300033 5.9000E-01 1.0000E-02 7.5800E+01 2.0000E+00 2. 2057600300034 6.1000E-01 1.0000E-02 7.6600E+01 2.1000E+00 2. 2057600300035 6.3000E-01 1.0000E-02 7.5400E+01 2.0000E+00 2. 2057600300036 6.6000E-01 1.0000E-02 7.8700E+01 2.1000E+00 2. 2057600300037 6.9000E-01 1.0000E-02 7.6300E+01 2.0000E+00 2. 2057600300038 7.1000E-01 1.0000E-02 7.8600E+01 2.1000E+00 2. 2057600300039 7.3000E-01 1.0000E-02 7.4600E+01 2.1000E+00 2. 2057600300040 7.6000E-01 1.0000E-02 7.8700E+01 2.0000E+00 2. 2057600300041 7.9000E-01 2.0000E-02 7.9400E+01 2.1000E+00 2. 2057600300042 8.1000E-01 2.0000E-02 7.8300E+01 2.1000E+00 2. 2057600300043 8.4000E-01 2.0000E-02 7.6600E+01 2.0000E+00 2. 2057600300044 8.6000E-01 2.0000E-02 8.0000E+01 2.2000E+00 2. 2057600300045 8.9000E-01 2.0000E-02 8.1000E+01 2.1000E+00 2. 2057600300046 9.1000E-01 2.0000E-02 8.0200E+01 2.1000E+00 2. 2057600300047 9.4000E-01 2.0000E-02 7.9500E+01 2.1000E+00 2. 2057600300048 9.6000E-01 2.0000E-02 7.8400E+01 2.1000E+00 2. 2057600300049 9.8000E-01 2.0000E-02 7.7800E+01 2.1000E+00 2. 2057600300050 1.0100E+00 2.0000E-02 7.6800E+01 2.2000E+00 2. 2057600300051 1.0400E+00 2.0000E-02 7.8400E+01 2.0000E+00 2. 2057600300052 1.0600E+00 2.0000E-02 7.8300E+01 2.2000E+00 2. 2057600300053 1.0900E+00 2.0000E-02 7.7800E+01 2.1000E+00 2. 2057600300054 1.1100E+00 2.0000E-02 7.4900E+01 2.1000E+00 2. 2057600300055 1.1300E+00 3.0000E-02 7.5100E+01 2.1000E+00 2. 2057600300056 1.1600E+00 3.0000E-02 7.6000E+01 2.1000E+00 2. 2057600300057 1.1900E+00 3.0000E-02 7.6100E+01 2.1000E+00 2. 2057600300058 1.2100E+00 3.0000E-02 7.4000E+01 2.0000E+00 2. 2057600300059 1.2400E+00 3.0000E-02 7.3500E+01 2.2000E+00 2. 2057600300060 1.2600E+00 3.0000E-02 7.6700E+01 1.6000E+00 2. 2057600300061 1.2900E+00 3.0000E-02 7.4500E+01 1.6000E+00 2. 2057600300062 1.3200E+00 3.0000E-02 7.2300E+01 1.5000E+00 2. 2057600300063 1.3500E+00 3.0000E-02 7.2800E+01 1.5000E+00 2. 2057600300064 1.3900E+00 4.0000E-02 7.2200E+01 1.5000E+00 2. 2057600300065 1.4200E+00 4.0000E-02 7.2100E+01 1.5000E+00 2. 2057600300066 1.4500E+00 4.0000E-02 6.9100E+01 1.7000E+00 2. 2057600300067 1.4700E+00 4.0000E-02 7.0700E+01 1.8000E+00 2. 2057600300068 1.5000E+00 4.0000E-02 7.1300E+01 1.8000E+00 2. 2057600300069 1.5200E+00 4.0000E-02 6.7300E+01 1.7000E+00 2. 2057600300070 1.5500E+00 4.0000E-02 6.8400E+01 1.7000E+00 2. 2057600300071 1.5800E+00 4.0000E-02 6.5100E+01 1.6000E+00 2. 2057600300072 1.6000E+00 4.0000E-02 6.5700E+01 1.6000E+00 2. 2057600300073 1.6300E+00 4.0000E-02 6.4300E+01 1.6000E+00 2. 2057600300074 1.6600E+00 5.0000E-02 6.4100E+01 1.6000E+00 2. 2057600300075 1.6900E+00 5.0000E-02 6.4700E+01 1.6000E+00 2. 2057600300076 1.7200E+00 5.0000E-02 6.1900E+01 1.5000E+00 2. 2057600300077 1.7500E+00 5.0000E-02 6.3100E+01 1.5000E+00 2. 2057600300078 1.7900E+00 5.0000E-02 6.3000E+01 1.5000E+00 2. 2057600300079 1.8200E+00 5.0000E-02 6.0900E+01 1.5000E+00 2. 2057600300080 1.8500E+00 5.0000E-02 5.9900E+01 1.5000E+00 2. 2057600300081 1.8900E+00 6.0000E-02 5.8700E+01 1.4000E+00 2. 2057600300082 1.9300E+00 6.0000E-02 5.8000E+01 1.4000E+00 2. 2057600300083 1.9600E+00 6.0000E-02 5.7000E+01 1.4000E+00 2. 2057600300084 2.0000E+00 6.0000E-02 5.6100E+01 1.4000E+00 2. 2057600300085 2.0400E+00 6.0000E-02 5.4600E+01 1.3000E+00 2. 2057600300086 2.0700E+00 6.0000E-02 5.4100E+01 1.8000E+00 2. 2057600300087 2.0900E+00 6.0000E-02 5.2700E+01 1.8000E+00 2. 2057600300088 2.1100E+00 7.0000E-02 5.2000E+01 1.8000E+00 2. 2057600300089 2.1400E+00 7.0000E-02 5.1600E+01 1.8000E+00 2. 2057600300090 2.1600E+00 7.0000E-02 5.2900E+01 1.8000E+00 2. 2057600300091 2.1800E+00 7.0000E-02 5.1000E+01 1.7000E+00 2. 2057600300092 2.2000E+00 7.0000E-02 5.1000E+01 1.7000E+00 2. 2057600300093 2.2200E+00 7.0000E-02 4.9600E+01 1.7000E+00 2. 2057600300094 2.2500E+00 7.0000E-02 4.8900E+01 1.7000E+00 2. 2057600300095 2.2700E+00 7.0000E-02 4.7300E+01 1.6000E+00 2. 2057600300096 2.2900E+00 7.0000E-02 4.9500E+01 1.7000E+00 2. 2057600300097 2.3200E+00 7.0000E-02 4.6600E+01 1.6000E+00 2057600300098 2.3400E+00 7.0000E-02 4.5400E+01 1.6000E+00 2057600300099 2.3700E+00 8.0000E-02 4.6200E+01 1.6000E+00 2057600300100 2.3900E+00 8.0000E-02 4.6600E+01 1.6000E+00 2057600300101 2.4200E+00 8.0000E-02 4.5300E+01 1.5000E+00 2057600300102 2.4400E+00 8.0000E-02 4.4000E+01 1.5000E+00 2057600300103 2.4700E+00 8.0000E-02 4.4600E+01 1.5000E+00 2057600300104 2.5000E+00 8.0000E-02 4.1600E+01 1.4000E+00 2057600300105 2.5300E+00 9.0000E-02 4.3400E+01 1.5000E+00 2057600300106 2.5600E+00 9.0000E-02 4.1300E+01 1.4000E+00 2057600300107 2.5800E+00 9.0000E-02 4.3200E+01 1.5000E+00 2057600300108 2.6100E+00 9.0000E-02 4.1400E+01 1.4000E+00 2057600300109 2.6400E+00 9.0000E-02 3.9500E+01 1.4000E+00 2057600300110 2.6700E+00 9.0000E-02 3.8900E+01 1.3000E+00 2057600300111 2.7000E+00 9.0000E-02 3.9700E+01 1.4000E+00 2057600300112 2.7300E+00 1.0000E-01 3.7500E+01 1.3000E+00 2057600300113 2.7600E+00 1.0000E-01 3.6400E+01 1.2000E+00 2057600300114 2.7900E+00 1.0000E-01 3.6100E+01 1.2000E+00 2057600300115 2.8200E+00 1.0000E-01 3.6600E+01 1.2000E+00 2057600300116 2.8600E+00 1.0000E-01 3.6200E+01 1.2000E+00 2057600300117 2.8900E+00 1.0000E-01 3.4800E+01 1.2000E+00 2057600300118 2.9300E+00 1.0000E-01 3.4000E+01 1.2000E+00 2057600300119 2.9600E+00 1.0000E-01 3.4100E+01 1.2000E+00 2057600300120 3.0000E+00 1.1000E-01 3.3400E+01 1.2000E+00 2057600300121 3.0300E+00 1.1000E-01 3.1200E+01 1.1000E+00 2057600300122 3.0700E+00 1.1000E-01 3.2400E+01 1.1000E+00 2057600300123 3.1100E+00 1.1000E-01 3.1500E+01 1.1000E+00 2057600300124 3.1500E+00 1.2000E-01 3.0700E+01 1.1000E+00 2057600300125 3.1800E+00 1.2000E-01 2.9300E+01 1.0000E+00 2057600300126 3.2200E+00 1.2000E-01 2.8600E+01 1.0000E+00 2057600300127 3.2600E+00 1.2000E-01 2.8300E+01 1.0000E+00 2057600300128 3.3000E+00 1.2000E-01 2.7100E+01 1.0000E+00 2057600300129 3.3400E+00 1.3000E-01 2.7600E+01 1.0000E+00 2057600300130 3.3900E+00 1.3000E-01 2.6300E+01 9.0000E-01 2057600300131 3.4300E+00 1.3000E-01 2.5400E+01 9.0000E-01 2057600300132 3.4800E+00 1.4000E-01 2.4600E+01 9.0000E-01 2057600300133 3.5200E+00 1.4000E-01 2.4400E+01 9.0000E-01 2057600300134 3.5700E+00 1.4000E-01 2.3700E+01 8.0000E-01 2057600300135 3.6100E+00 1.4000E-01 2.2400E+01 8.0000E-01 2057600300136 3.6600E+00 1.5000E-01 2.1700E+01 8.0000E-01 2057600300137 3.7100E+00 1.5000E-01 2.2500E+01 8.0000E-01 2057600300138 3.7600E+00 1.5000E-01 2.1100E+01 8.0000E-01 2057600300139 3.8100E+00 1.5500E-01 2.0000E+01 7.0000E-01 2057600300140 3.8600E+00 1.5500E-01 1.9000E+01 7.0000E-01 2057600300141 3.9200E+00 1.6500E-01 1.9400E+01 7.0000E-01 2057600300142 3.9700E+00 1.6500E-01 1.7700E+01 7.0000E-01 2057600300143 4.0300E+00 1.6500E-01 1.8000E+01 7.0000E-01 2057600300144 4.0800E+00 1.7500E-01 1.6600E+01 6.0000E-01 2057600300145 4.1400E+00 1.7500E-01 1.6700E+01 6.0000E-01 2057600300146 4.2000E+00 1.8000E-01 1.6000E+01 6.0000E-01 2057600300147 4.2600E+00 1.8500E-01 1.5300E+01 6.0000E-01 2057600300148 4.3200E+00 1.8500E-01 1.5200E+01 6.0000E-01 2057600300149 4.3800E+00 1.9500E-01 1.4500E+01 6.0000E-01 2057600300150 4.4500E+00 1.9500E-01 1.3200E+01 5.0000E-01 2057600300151 4.5100E+00 2.0000E-01 1.3200E+01 5.0000E-01 2057600300152 4.5700E+00 2.0500E-01 1.3100E+01 5.0000E-01 2057600300153 4.6400E+00 2.1000E-01 1.2400E+01 5.0000E-01 2057600300154 4.7200E+00 2.1500E-01 1.2300E+01 5.0000E-01 2057600300155 4.7900E+00 2.2000E-01 1.1300E+01 5.0000E-01 2057600300156 4.8600E+00 2.2500E-01 1.0800E+01 4.0000E-01 2057600300157 4.9400E+00 2.3000E-01 9.7300E+00 4.2000E-01 2057600300158 5.0100E+00 2.3500E-01 1.0000E+01 4.0000E-01 2057600300159 5.0900E+00 2.4000E-01 9.5600E+00 4.1000E-01 2057600300160 5.1700E+00 2.4500E-01 8.7700E+00 3.9000E-01 2057600300161 5.2500E+00 2.5000E-01 8.6100E+00 3.8000E-01 2057600300162 5.3400E+00 2.6000E-01 8.6900E+00 3.8000E-01 2057600300163 5.4200E+00 2.6000E-01 7.9600E+00 3.6000E-01 2057600300164 5.5100E+00 2.7000E-01 7.1600E+00 3.4000E-01 2057600300165 5.6000E+00 2.8000E-01 7.2600E+00 3.4000E-01 2057600300166 5.6900E+00 2.8000E-01 6.0200E+00 3.1000E-01 2057600300167 5.7900E+00 2.9000E-01 6.0600E+00 3.1000E-01 2057600300168 5.8800E+00 3.0000E-01 6.0300E+00 3.1000E-01 2057600300169 5.9900E+00 3.0500E-01 5.8600E+00 3.0000E-01 2057600300170 6.0900E+00 3.1000E-01 5.1600E+00 2.8000E-01 2057600300171 6.1900E+00 3.2000E-01 4.9700E+00 2.8000E-01 2057600300172 6.3000E+00 3.3000E-01 4.8800E+00 2.7000E-01 2057600300173 6.4100E+00 3.3500E-01 4.1800E+00 2.6000E-01 2057600300174 6.5300E+00 3.4500E-01 4.0000E+00 2.5000E-01 2057600300175 6.6400E+00 3.5500E-01 3.7100E+00 2.4000E-01 2057600300176 6.7600E+00 3.6500E-01 3.6100E+00 2.4000E-01 2057600300177 6.8800E+00 3.7500E-01 3.3900E+00 2.3000E-01 2057600300178 7.0100E+00 3.8500E-01 2.8600E+00 2.2000E-01 2057600300179 7.1400E+00 3.9500E-01 2.6700E+00 2.1000E-01 2057600300180 7.2800E+00 4.0500E-01 2.5700E+00 2.1000E-01 2057600300181 7.4100E+00 4.2000E-01 2.2400E+00 2.0000E-01 2057600300182 7.5500E+00 4.3000E-01 2.2200E+00 2.0000E-01 2057600300183 7.7000E+00 4.4000E-01 1.7100E+00 1.9000E-01 2057600300184 7.8500E+00 4.6000E-01 1.9000E+00 1.9000E-01 2057600300185 8.0000E+00 4.7000E-01 1.6100E+00 1.8000E-01 2057600300186 8.1600E+00 4.8000E-01 1.3500E+00 1.7000E-01 2057600300187 8.3300E+00 4.9500E-01 1.2900E+00 1.7000E-01 2057600300188 8.5000E+00 5.1500E-01 1.0000E+00 1.6000E-01 2057600300189 8.6700E+00 5.2500E-01 1.0900E+00 1.5000E-01 2057600300190 8.8500E+00 5.4500E-01 8.7000E-01 1.5000E-01 2057600300191 9.0400E+00 5.6000E-01 9.1000E-01 1.5000E-01 2057600300192 9.2300E+00 5.8000E-01 4.9000E-01 1.4000E-01 2057600300193 9.4200E+00 6.0000E-01 7.3000E-01 1.4000E-01 2057600300194 9.6200E+00 6.2000E-01 4.0000E-01 1.4000E-01 2057600300195 9.8400E+00 6.3500E-01 6.8000E-01 1.4000E-01 2057600300196 1.0060E+01 6.5500E-01 4.8000E-01 1.3000E-01 2057600300197 1.0400E+01 7.0000E-01 1.5000E-01 1.0000E-01 2057600300198 1.0880E+01 7.2500E-01 3.0000E-01 9.0000E-02 2057600300199 1.1400E+01 8.0500E-01 3.4000E-01 8.0000E-02 2057600300200 1.1940E+01 8.6500E-01 9.0000E-02 1.1000E-01 2057600300201 1.2540E+01 9.3000E-01 1.1000E-01 9.0000E-02 2057600300202 1.3180E+01 9.9500E-01 5.0000E-02 1.6000E-01 2057600300203 1.3870E+01 1.0350E+00 5.0000E-02 1.7000E-01 2057600300204 ENDDATA 185 0 2057600300205 ENDSUBENT 204 0 2057600399999 SUBENT 20576004 20110810 22272057600400001 BIB 5 25 2057600400002 REACTION 1(94-PU-239(N,F)0-NN-1,PR,KE,,,DERIV) 2057600400003 2(94-PU-239(N,F)0-NN-1,PR,KE,,,DERIV) 2057600400004 ANALYSIS 1.Average neutron energy obtained via Maxwell fitting 2057600400005 of experimental data 2057600400006 2.Average neutron energy obtained by independent direct 2057600400007 integration of experimental data 2057600400008 ERR-ANALYS (ERR-S) .Statistical error 2057600400009 1(ERR-T) .Total error including neutron secondary inter-2057600400010 actions in sample error, detector efficiency errors,2057600400011 and statistical error. 2057600400012 (ERR-1) .Detector efficiency error 2057600400013 (ERR-2) .Error due to corrections caused by neutron 2057600400014 interactions in sample 2057600400015 (ERR-3,2.,5.) Errors due to systematic changes in 2057600400016 detector efficiency 2057600400017 2(ERR-T) .Total error includes errors due to lower and 2057600400018 upper energy levels of integration, error due to 2057600400019 secondary neutron interactions in sample 2057600400020 (ERR-1) .Error due to secondary neutron interactions 2057600400021 in sample 2057600400022 (ERR-2,0.2,5.4) .Error due to determination of lower 2057600400023 and upper energy levels of integration 2057600400024 STATUS (TABLE) .Data from text of AKE, v.26, p.76, 1975 2057600400025 (DEP,20576003) 2057600400026 HISTORY (20110810C) S.M. 2057600400027 ENDBIB 25 0 2057600400028 COMMON 1 3 2057600400029 ERR-S 2057600400030 PER-CENT 2057600400031 0.5 2057600400032 ENDCOMMON 3 0 2057600400033 DATA 7 1 2057600400034 DATA 1ERR-T 1ERR-1 1ERR-2 1DATA 2ERR-T 22057600400035 ERR-1 2 2057600400036 MEV MEV PER-CENT PER-CENT MEV MEV 2057600400037 PER-CENT 2057600400038 2.148 0.045 1. 1. 2.125 0.035 2057600400039 1. 2057600400040 ENDDATA 6 0 2057600400041 ENDSUBENT 40 0 2057600499999 SUBENT 20576006 20110810 22272057600600001 BIB 5 8 2057600600002 REACTION ((94-PU-239(N,F)0-NN-1,PR,KE)/ 2057600600003 (92-U-235(N,F)0-NN-1,PR,KE)) 2057600600004 REL-REF (R,,E.D.Kielhofer+,C,71VIENNA,,127,1971) Average energy2057600600005 of U-235 2057600600006 ERR-ANALYS (DATA-ERR) Not specified 2057600600007 STATUS (TABLE) Data from text of AKE, v.26, p.76, 1975 2057600600008 (DEP,20576002) 2057600600009 HISTORY (20110810C) S.M. 2057600600010 ENDBIB 8 0 2057600600011 NOCOMMON 0 0 2057600600012 DATA 2 1 2057600600013 DATA DATA-ERR 2057600600014 NO-DIM NO-DIM 2057600600015 1.037 0.020 2057600600016 ENDDATA 3 0 2057600600017 ENDSUBENT 16 0 2057600699999 ENDENTRY 5 0 2057699999999