ENTRY 40418 20190114 418140418 0 1 SUBENT 40418001 20190114 418140418 1 1 BIB 6 36 40418 1 2 INSTITUTE (4RUSRI) 40418 1 3 REFERENCE (C,73KIEV,4,138,1973) Preliminary data - figures only, 40418 1 4 relative to Li-6(n,a) reaction. 40418 1 5 (C,77KIEV,3,197,1977) Curve is given up to 10 MeV. 40418 1 6 Relative to U-235(n,f) reaction. 40418 1 7 (R,INDC(CCP)-118,197,1977) The same as 77KIEV,3,197 40418 1 8 (C,82ANTWER,,479,1982) Details of measurement relative 40418 1 9 to U-235. 40418 1 10 (P,YFI-25,43,1977) Data for 0.015 - 2.14 MeV 40418 1 11 (R,INDC(CCP)-0238,1984) 40418 1 12 Authors: M.Blinov,G.Boykov,V.Vitenko . 40418 1 13 Average spectra ratios to Maxwellian of 1.42 MeV. 40418 1 14 (R,INDC(NDS)-146,161,1983) 40418 1 15 Authors: O.Batenkov,M.Blinov, G.Boykov,V.Vitenko, 40418 1 16 V.Rubchenya . 40418 1 17 Figures only. 40418 1 18 AUTHOR (M.V.Blinov,V.A.Vitenko,V.T.Tuz,N.M.Kazarinov, 40418 1 19 I.T.Krisyuk) 40418 1 20 TITLE Measurement of neutron spectrum from spontaneous 40418 1 21 fission of Cf-252 in a broad energy range 40418 1 22 METHOD (TOF) Time-of-flight 40418 1 23 HISTORY (19790208C) 40418 1 24 (20111219A) Upper -> lower case correction. 40418 1 25 Dates were corrected for 4-digits year. 40418 1 26 DATA-ERR -> ERR-S. 40418 1 27 Reaction of Subent 002 was corrected ,DE,N, -> NU/DE,,40418 1 28 Subent 003 was added. 40418 1 29 (20120303A) M.M. Subent 003 was corrected. 40418 1 30 Reference Conf.Proc.82ANTWER,,479,1982 was added. 40418 1 31 (20140603A) Subent 006 was added. 40418 1 32 Subent 004 data for flight path 50.cm were moved in 40418 1 33 Subent 005 (according to recommendation of NDS,IAEA, 40418 1 34 see memo CP-D/714 . 40418 1 35 (20190114A) Ref. INDC(CCP)-0238 was inserted . 40418 1 36 Subents 004,005,006 were corrected. 40418 1 37 Subents 007-009 were added. 40418 1 38 ENDBIB 36 0 40418 1 39 NOCOMMON 0 0 40418 1 40 ENDSUBENT 39 0 40418 199999 SUBENT 40418002 20111219 41554041800200001 BIB 6 8 4041800200002 REACTION (98-CF-252(0,F),,NU/DE,,REL) 4041800200003 Reference quantity not given 4041800200004 DETECTOR (SOLST) Li-I crystal with Eu - LiI(Eu) 4041800200005 MONITOR (3-LI-6(N,T)2-HE-4,,SIG) 4041800200006 For neutron detector efficiency. 4041800200007 MONIT-REF (,,3,ENDF/B-IV,,1974) 4041800200008 ERR-ANALYS (ERR-S) Statistical Error 4041800200009 STATUS (TABLE) Table of P,YFI-25,43,1977. 4041800200010 ENDBIB 8 0 4041800200011 NOCOMMON 0 0 4041800200012 DATA 3 29 4041800200013 E DATA ERR-S 4041800200014 MEV ARB-UNITS ARB-UNITS 4041800200015 1.5000E-02 1.1400E+02 2.0000E+01 4041800200016 2.5000E-02 1.5200E+02 1.8000E+01 4041800200017 4.0000E-02 1.9300E+02 1.6000E+01 4041800200018 6.7000E-02 2.4000E+02 1.6000E+01 4041800200019 9.0000E-02 2.6500E+02 1.7000E+01 4041800200020 1.1300E-01 2.9000E+02 1.7000E+01 4041800200021 1.2700E-01 3.4000E+02 1.5000E+01 4041800200022 1.6300E-01 3.5600E+02 1.3000E+01 4041800200023 1.9700E-01 3.8300E+02 1.2000E+01 4041800200024 2.4300E-01 3.9000E+02 8.0000E+00 4041800200025 2.6000E-01 4.0200E+02 8.0000E+00 4041800200026 2.8800E-01 4.3000E+02 9.0000E+00 4041800200027 3.1700E-01 4.6200E+02 1.0000E+01 4041800200028 3.5200E-01 4.6000E+02 1.2000E+01 4041800200029 3.9200E-01 4.9600E+02 1.4000E+01 4041800200030 4.3800E-01 5.0800E+02 1.6000E+01 4041800200031 4.9700E-01 4.9500E+02 1.5000E+01 4041800200032 5.7000E-01 5.0500E+02 1.5000E+01 4041800200033 6.5000E-01 5.2300E+02 1.4000E+01 4041800200034 7.4200E-01 5.2900E+02 1.4000E+01 4041800200035 8.4600E-01 5.0400E+02 1.3000E+01 4041800200036 9.7000E-01 5.0200E+02 1.3000E+01 4041800200037 1.1200E+00 4.7500E+02 1.2000E+01 4041800200038 1.2200E+00 4.6600E+02 1.1000E+01 4041800200039 1.3500E+00 4.4000E+02 1.0000E+01 4041800200040 1.5000E+00 4.2800E+02 9.0000E+00 4041800200041 1.6800E+00 3.8100E+02 8.0000E+00 4041800200042 1.8800E+00 3.6100E+02 7.0000E+00 4041800200043 2.1400E+00 3.3000E+02 6.0000E+00 4041800200044 ENDDATA 31 0 4041800200045 ENDSUBENT 44 0 4041800299999 SUBENT 40418003 20120303 41564041800300001 BIB 8 31 4041800300002 REACTION 1(98-CF-252(0,F)0-NN-1,,KEM) Spectrum temperature. 4041800300003 2(98-CF-252(0,F)0-NN-1,,KEM) Spectrum temperature. 4041800300004 DETECTOR 1(SOLST) Li-I crystal with Eu - LiI(Eu) 4041800300005 2(IOCH) Ionization chamber with U-235 films 4041800300006 MONITOR 1(3-LI-6(N,T)2-HE-4,,SIG) 4041800300007 For neutron detector efficiency. 4041800300008 2(92-U-235(N,F),,SIG) 4041800300009 MONIT-REF 1(,,3,ENDF/B-IV,,1974) 4041800300010 2(,,3,ENDF/B-V,,1978) 4041800300011 G.V.Antcipov+,J,YK,1975,(20),1,1975 - was used in 4041800300012 P,YFI-25,43,1977 . 4041800300013 CORRECTION2 For neutron scattering by detectors and environment : 4041800300014 from 3% at 10 keV to 0.7% at 1 MeV for detectors, 4041800300015 from 30% at 10 kev to 0.5 % at 1 MeV for air medium. 4041800300016 For time resolution 4041800300017 ERR-ANALYS (DATA-ERR) Not specified. 4041800300018 Error of DATA 1 is 5.- 7. % . 4041800300019 2(MONIT-ERR,,4.) Max.uncertainty of U-235 fis.c-s. 4041800300020 (ERR-1,6.,16.) Error of intensity registration 4041800300021 from 16.% at 10 keV to 6 % at 1 MeV - one sigma. 4041800300022 STATUS (TABLE) 4041800300023 1(DEP,40418002) 4041800300024 Text of P,YFI-25,43,1977 4041800300025 2(DEP,40418004) 4041800300026 Text of C,82ANTWER,,479,982 . 4041800300027 Ratio of measured spectrum to Maxwellian one of 4041800300028 T=1.42 MeV is given on Fig.4 of C,82ANTWER, 4041800300029 together with other measurements and evaluation - 4041800300030 quality of plot is not enough good for digitizing. 4041800300031 HISTORY (20120303A) DATA 2 value 1.41+-0.03 of P,YFI-25,43,19774041800300032 was replaced by that of C,282ANTWER,,479,1982. 4041800300033 ENDBIB 31 0 4041800300034 NOCOMMON 0 0 4041800300035 DATA 3 1 4041800300036 DATA 1DATA 2DATA-ERR 2 4041800300037 MEV MEV MEV 4041800300038 1.38 1.418 0.024 4041800300039 ENDDATA 3 0 4041800300040 ENDSUBENT 39 0 4041800399999 SUBENT 40418004 20190114 418140418 4 1 BIB 8 17 40418 4 2 REACTION (98-CF-252(0,F),PR,NU/DE,,REL) 40418 4 3 Data are given on fig. in arbitrary units. 40418 4 4 DETECTOR (IOCH) Ionization chamber with U-235 films 40418 4 5 MONITOR (92-U-235(N,F),,SIG) 40418 4 6 MONIT-REF (,G.V.Antcipov+,J,YK,,(20),1,1975) 40418 4 7 MISC-COL (MISC) TOF base. 40418 4 8 ERR-ANALYS (DATA-ERR) Not specified. Error bars digitized. 40418 4 9 STATUS (CURVE) Fig. of Conf.Proc. 4th All Union Conf.on 40418 4 10 Neutron Phys.,Kiev,18-22 Apr 1977,v.3,p.197,1977 40418 4 11 was digitized. 40418 4 12 (COREL,40418005) 50 cm flight path data 40418 4 13 Relative spectrum for 25 cm flight path is on Fig.15 40418 4 14 of rep. INDC(CCP)-0238 - without error bars. 40418 4 15 HISTORY (20140603A) Data for flight path 50 cm were moved in 40418 4 16 Subent 005 . 40418 4 17 (20190114A) Status information is updated 40418 4 18 Code PR wad added in SF5 40418 4 19 ENDBIB 17 0 40418 4 20 COMMON 3 3 40418 4 21 E-ERR-DIG ERR-DIG MISC 40418 4 22 PER-CENT ARB-UNITS CM 40418 4 23 0.38E-02 0.72E-02 25. 40418 4 24 ENDCOMMON 3 0 40418 4 25 DATA 3 35 40418 4 26 E DATA DATA-ERR 40418 4 27 MEV ARB-UNITS ARB-UNITS 40418 4 28 0.140E-01 1.999 0.893 40418 4 29 0.250E-01 3.186 0.680 40418 4 30 0.349E-01 2.665 0.595 40418 4 31 0.503E-01 3.363 0.397 40418 4 32 0.699E-01 4.318 0.397 40418 4 33 0.911E-01 4.224 0.354 40418 4 34 0.117 5.677 0.397 40418 4 35 0.152 5.698 0.425 40418 4 36 0.182 6.855 0.397 40418 4 37 0.223 6.693 0.354 40418 4 38 0.275 7.353 0.326 40418 4 39 0.336 7.844 0.425 40418 4 40 0.384 8.549 0.383 40418 4 41 0.435 7.892 0.397 40418 4 42 0.490 8.910 0.440 40418 4 43 0.535 8.936 0.397 40418 4 44 0.569 8.352 0.397 40418 4 45 0.627 8.945 0.326 40418 4 46 0.677 8.716 0.368 40418 4 47 0.749 8.954 0.354 40418 4 48 0.818 8.922 0.312 40418 4 49 0.900 7.912 0.255 40418 4 50 1.008 8.193 0.283 40418 4 51 1.124 7.650 0.255 40418 4 52 1.252 7.888 0.227 40418 4 53 1.415 7.672 0.212 40418 4 54 1.625 7.086 0.170 40418 4 55 1.841 6.188 40418 4 56 2.161 5.233 40418 4 57 2.552 4.363 40418 4 58 2.977 3.393 40418 4 59 3.686 2.507 40418 4 60 4.613 1.479 40418 4 61 5.746 0.635 40418 4 62 7.700 0.229 40418 4 63 ENDDATA 37 0 40418 4 64 ENDSUBENT 63 0 40418 499999 SUBENT 40418005 20190114 418140418 5 1 BIB 8 15 40418 5 2 REACTION (98-CF-252(0,F),PR,NU/DE,,REL) 40418 5 3 Data are given on fig. in arbitrary units. 40418 5 4 DETECTOR (IOCH) Ionization chamber with U-235 films 40418 5 5 MONITOR (92-U-235(N,F),,SIG) 40418 5 6 MONIT-REF (,G.V.Antcipov+,J,YK,,(20),1,1975) 40418 5 7 MISC-COL (MISC) TOF base. 40418 5 8 ERR-ANALYS (DATA-ERR) Not specified. Error bars digitized. 40418 5 9 STATUS (CURVE) Fig. of Proc.of 4th All Union Conf.on Neutron 40418 5 10 Phys.,Kiev,18-22 Apr 1977,3,197,1977 was digitized. 40418 5 11 (COREL,40418004) 25 cm flight path data 40418 5 12 Relative spectrum for 50 cm flight path is on Fig.15 40418 5 13 of rep.INDC(CCP)-0238 - without error bars. 40418 5 14 HISTORY (20140703T) Data were moved from Subent 004. 40418 5 15 (20190114A) Status information is updated 40418 5 16 Code PR wad added in SF5 40418 5 17 ENDBIB 15 0 40418 5 18 COMMON 3 3 40418 5 19 E-ERR-DIG ERR-DIG MISC 40418 5 20 PER-CENT ARB-UNITS CM 40418 5 21 0.38E-02 0.72E-02 50. 40418 5 22 ENDCOMMON 3 0 40418 5 23 DATA 3 33 40418 5 24 E DATA DATA-ERR 40418 5 25 MEV ARB-UNITS ARB-UNITS 40418 5 26 0.0536 4.397 0.680 40418 5 27 0.0846 4.680 0.652 40418 5 28 0.124 4.498 0.397 40418 5 29 0.175 6.615 0.482 40418 5 30 0.252 7.072 0.368 40418 5 31 0.362 7.912 0.411 40418 5 32 0.459 7.962 0.312 40418 5 33 0.567 7.629 0.297 40418 5 34 0.670 8.007 0.439 40418 5 35 0.768 8.144 0.312 40418 5 36 0.969 7.470 0.255 40418 5 37 1.160 8.032 0.397 40418 5 38 1.242 7.520 0.382 40418 5 39 1.328 7.957 0.354 40418 5 40 1.378 7.133 0.368 40418 5 41 1.504 6.932 0.297 40418 5 42 1.580 7.299 0.255 40418 5 43 1.710 6.715 0.283 40418 5 44 1.817 5.919 0.269 40418 5 45 1.964 6.129 0.255 40418 5 46 2.138 5.474 0.241 40418 5 47 2.304 5.117 0.198 40418 5 48 2.465 4.520 0.170 40418 5 49 2.703 4.049 0.156 40418 5 50 2.981 3.620 40418 5 51 3.283 2.922 40418 5 52 3.575 2.295 40418 5 53 3.940 1.739 40418 5 54 4.423 1.324 40418 5 55 5.551 0.807 40418 5 56 6.420 0.433 40418 5 57 7.219 0.288 40418 5 58 8.710 0.126 40418 5 59 ENDDATA 35 0 40418 5 60 ENDSUBENT 59 0 40418 599999 SUBENT 40418006 20190114 418140418 6 1 BIB 11 39 40418 6 2 REACTION (98-CF-252(0,F),PR,NU/DE,,MXD) 40418 6 3 Ratio of Cf spectrum ( average for three flight bases 40418 6 4 25,50,100 cm) to Maxwellian of 1.42 MeV. 40418 6 5 DETECTOR (IOCH) Fast ionization chamber with U-235 40418 6 6 Fast ionization chamber with Cf layers. 40418 6 7 MONITOR (92-U-235(N,F),,SIG) 40418 6 8 for dependence of neutron detector efficiency on 40418 6 9 energy of neutrons. 40418 6 10 MONIT-REF (,,3,ENDF/B-V,,1978) 40418 6 11 SAMPLE Cf layers of 4cm diameter, 0.75 microg (5.1E+5 fis/sec)40418 6 12 and 0.3 microg (2.0E+5 fis/sec) in weight. 40418 6 13 CORRECTION For neutron scattering by the fragment and neutron 40418 6 14 detectors - 3% at 10 keV to 0.7% at 1 MeV - 40418 6 15 and by environment (air) - from 30% at 10 keV to 0.5% 40418 6 16 at 1 MeV for 25 cm flight base. 40418 6 17 For time resolution. 40418 6 18 ERR-ANALYS (DATA-ERR) Total error bars digitized, where given . 40418 6 19 Total error in spectrum determination from 16% ( one 40418 6 20 sigma) at 10 keV to 5% at higher energy. 40418 6 21 .Quantization error for scale X 0.247 %. 40418 6 22 .Quantization error for scale Y 0.1641 %. 40418 6 23 .Calibration of the time scale was done with accuracy 40418 6 24 0.1% with quartz generator. 40418 6 25 (MONIT-ERR,,4.) U-235 fis.c-s uncertainty < 4.% . 40418 6 26 MISC-COL (MISC) Data digitized as they given on figure - 40418 6 27 deviation from Maxwellian spectrum in per-cents. 40418 6 28 COMMENT Of compiler. Data were digitized from figure according 40418 6 29 to proposal of NDS,IAEA (N.Otsuka, R.Capote). 40418 6 30 Quality of digitized data is not very good due to 40418 6 31 overlapping of symbols on figure. 40418 6 32 To obtain NU/DE,,MXD the digitized data were multiplied40418 6 33 by 100. ( for NO-DIM) and then were summed with 1. at 40418 6 34 each point ( for real ratio) . 40418 6 35 STATUS (CURVE) Fig.4 of Proc.Conf.on Nucl.Data for Sci.and 40418 6 36 Technol.,Antwerp 1982,479,1982. Solid circles. 40418 6 37 (SPSDD,40418008) Superseded by newer publication of 40418 6 38 Cf-252 spectrum to Maxwellian spectrum of 1.42 MeV . 40418 6 39 HISTORY (20140603C) Subent was added. 40418 6 40 (20190114A) MEV -> KEV in E 40418 6 41 ENDBIB 39 0 40418 6 42 COMMON 3 3 40418 6 43 E-ERR-DIG MISC-ERR-D KT-NRM 40418 6 44 PER-CENT SEE TEXT MEV 40418 6 45 1.603 0.255 1.42 40418 6 46 ENDCOMMON 3 0 40418 6 47 DATA 5 98 40418 6 48 E DATA DATA-ERR MISC MISC-ERR 40418 6 49 KEV NO-DIM NO-DIM SEE TEXT SEE TEXT 40418 6 50 11.57 0.97373 0.14212 -2.6270 14.212 40418 6 51 16.08 0.93643 -6.3568 40418 6 52 20.33 1.11426 11.426 40418 6 53 24.85 0.98973 -1.0269 40418 6 54 28.57 1.05875 0.08593 5.8748 8.593 40418 6 55 34.14 0.93263 -6.7366 40418 6 56 38.14 1.00173 0.17326 40418 6 57 47.43 1.04078 4.0776 40418 6 58 56.63 1.05515 5.5146 40418 6 59 65.27 1.03821 3.8214 40418 6 60 76.05 1.00472 0.47243 40418 6 61 85.87 1.05065 5.0654 40418 6 62 87.97 1.09190 9.1903 40418 6 63 97.49 0.92469 -7.5313 40418 6 64 101.07 0.98078 -1.9224 40418 6 65 106.53 1.01864 1.8639 40418 6 66 112.23 1.04163 4.1628 40418 6 67 120.77 1.01663 1.6629 40418 6 68 133.15 1.03618 3.6183 40418 6 69 144.17 1.02439 2.4388 40418 6 70 148.24 1.00613 0.61285 40418 6 71 153.60 1.04239 4.2387 40418 6 72 161.79 1.06207 6.2071 40418 6 73 168.99 0.99914 -0.08554 40418 6 74 178.69 0.96263 -3.7374 40418 6 75 179.06 1.02377 2.3770 40418 6 76 187.44 1.02695 2.6945 40418 6 77 194.04 1.03842 3.8416 40418 6 78 200.74 1.03006 3.0056 40418 6 79 204.46 1.06636 6.6363 40418 6 80 207.37 0.97873 -2.1271 40418 6 81 213.51 0.99848 -0.15215 40418 6 82 216.21 1.03315 3.3149 40418 6 83 227.40 1.00656 0.65624 40418 6 84 232.75 1.01972 1.9718 40418 6 85 245.04 1.02288 2.2877 40418 6 86 259.06 0.98140 -1.8599 40418 6 87 261.18 1.05410 5.4096 40418 6 88 273.08 1.02257 2.2568 40418 6 89 286.06 1.04557 4.5574 40418 6 90 299.20 1.02396 2.3961 40418 6 91 302.95 1.05533 5.5326 40418 6 92 322.49 1.04854 4.8537 40418 6 93 343.07 1.02192 2.1918 40418 6 94 357.38 1.04990 4.9898 40418 6 95 359.08 1.02179 2.1788 40418 6 96 376.25 1.05306 5.3056 40418 6 97 389.07 1.03148 3.1476 40418 6 98 418.92 1.02466 2.4655 40418 6 99 443.36 1.01458 1.4577 40418 6 100 469.51 1.02268 2.2677 40418 6 101 475.38 1.05239 5.2390 40418 6 102 502.57 1.01091 1.0914 40418 6 103 526.07 1.01244 1.2437 40418 6 104 541.41 1.01897 1.8966 40418 6 105 579.47 1.00390 0.38979 40418 6 106 620.66 1.01031 1.0313 40418 6 107 660.55 0.99691 -0.30860 40418 6 108 699.63 1.00997 0.99719 40418 6 109 719.31 0.98676 -1.3245 40418 6 110 740.49 1.00155 0.15467 40418 6 111 785.10 1.04435 4.4350 40418 6 112 789.10 1.02616 2.6156 40418 6 113 802.23 1.00793 0.79294 40418 6 114 830.95 1.03593 3.5925 40418 6 115 874.62 1.03247 3.2474 40418 6 116 919.40 0.99101 -0.89860 40418 6 117 991.33 1.02551 2.5506 40418 6 118 1031.4 1.01713 1.7130 40418 6 119 1042.6 0.99727 -0.27333 40418 6 120 1091.8 1.01201 1.2010 40418 6 121 1110.0 0.99544 -0.45645 40418 6 122 1169.1 1.01181 1.1815 40418 6 123 1259.0 1.00830 0.82984 40418 6 124 1267.4 1.03638 3.6375 40418 6 125 1380.0 1.02291 2.2911 40418 6 126 1469.9 1.03430 3.4300 40418 6 127 1637.7 1.02573 2.5729 40418 6 128 1695.6 1.04216 4.2157 40418 6 129 1824.5 1.01551 1.5505 40418 6 130 1954.2 1.02192 2.1920 40418 6 131 2033.0 1.01024 1.0239 40418 6 132 2093.1 1.02834 2.8335 40418 6 133 2165.1 1.01667 1.6670 40418 6 134 2254.3 1.02978 2.9777 40418 6 135 2331.6 1.01481 1.4806 40418 6 136 2483.2 1.02124 2.1238 40418 6 137 2659.8 1.02931 2.9306 40418 6 138 2798.5 1.01429 1.4286 40418 6 139 3016.1 1.03556 3.5558 40418 6 140 3190.4 1.01061 1.0608 40418 6 141 3514.5 1.00372 0.37213 40418 6 142 3762.4 0.99526 -0.47364 40418 6 143 4076.8 1.00660 0.66040 40418 6 144 4813.9 1.02927 2.9268 40418 6 145 5271.5 1.01579 1.5788 40418 6 146 5841.1 1.01384 1.3843 40418 6 147 6696.1 1.00519 0.51904 40418 6 148 ENDDATA 100 0 40418 6 149 ENDSUBENT 148 0 40418 699999 SUBENT 40418007 20190114 418140418 7 1 BIB 11 59 40418 7 2 REACTION (98-CF-252(0,F),PR,NU/DE,,MXD) 40418 7 3 Ratio of Cf spectrum to Maxwellian of 1.42 MeV 40418 7 4 obtained at second measurement step for 50 cm flight 40418 7 5 path. 40418 7 6 SAMPLE Cf layers of 4cm diameter, homogeneity ~10% , 40418 7 7 on Pt backings. 40418 7 8 Different weights from 0.01 to 1. microgram . 40418 7 9 Intensity 4.51*10**5 fissions/sec . 40418 7 10 . 99.9% U-235 layer on 0.005 mm thickness Al foil as 40418 7 11 standard; covered by Au, average layer thickness 40418 7 12 1.09+-0.05 mg/cm2 . 40418 7 13 DETECTOR (IOCH) Ionization chamber as fission fragment detector.40418 7 14 Fast ionization chamber with U-235 layer as neutron 40418 7 15 detector. 40418 7 16 Working gas is methane . 40418 7 17 Time resolution of Cf chamber 0.51+-0.02 nsec. 40418 7 18 Total time resolution of spectrometer 1.32+-0.02 nsec.40418 7 19 Neutron detection efficiency : 40418 7 20 (6.48+-0.06)*10**-8 measured by two Cf layers; 40418 7 21 (8.11+-0.13)*10**-8 measured by U-235 . 40418 7 22 Fragment registration efficiency ~ 80%. 40418 7 23 MONITOR (92-U-235(N,F),,SIG) 40418 7 24 ASSUMED (ASSUM,92-U-235(N,F),,SIG,,FIS) 40418 7 25 U-235 fission induced by Cf-252 spon.fission neutrons.40418 7 26 MONIT-REF (,,3,ENDF/B-V,,1978) 40418 7 27 (,D.E.Cullen+,J,NSE,83,497,1983) 40418 7 28 CORRECTION For : 40418 7 29 random coincidence background, 40418 7 30 true-random coincidence background, 40418 7 31 kinematic effects and anisotropy ( see Table 1 of 40418 7 32 INDC(CCP)-0238,1984), 40418 7 33 neutron scattering by air, 40418 7 34 scattering by the chambers, 40418 7 35 time resolution and uncertainty in path length ( see 40418 7 36 Table 2 of INDC(CCP)-0238,1984). 40418 7 37 ERR-ANALYS (ERR-S,,,U) Statistical uncertainty 1.8 - 6.5% 40418 7 38 Details of uncertainties are given in Table 7 of 40418 7 39 INDC(CCP)-0238,1984 as dependence from group energy. 40418 7 40 Sources of uncertainties: 40418 7 41 Time resolution +-0.08 nsec 40418 7 42 (ERR-1,,,F) dTAUk - time-of-flight of channel -0.07 % 40418 7 43 (ERR-2,,,F) dL - path length 0.5% 40418 7 44 (ERR-3,2.5,6.0,P) U-235 standard cross section 40418 7 45 2.5 - 6.0 % 40418 7 46 (ERR-4,,1.2,F) dH - correction for uncertainty in path 40418 7 47 length < 1.2 % 40418 7 48 (ERR-5,,1.5,F) dNa - correction for neutron scattering 40418 7 49 in surrounding air < 1.5% 40418 7 50 (ERR-6,,2.5,F) dNb - background < 2.5% 40418 7 51 (ERR-7,,0.1,F) dM - correction for the true-random 40418 7 52 coincidence background< 0.1 % 40418 7 53 (ERR-8,,1.,F) dNd - correction for neutron scattering 40418 7 54 by the structural materials of detectors < 1.% 40418 7 55 (ERR-9,,0.3,F) dK - correction for anisotropy and 40418 7 56 kinematic effects < 0.3% 40418 7 57 MISC-COL (MISC) Flight path 40418 7 58 STATUS (TABLE) Table 6 of rep. INDC(CCP)-0238,1984 40418 7 59 (COREL,40418005) Spectrum in arbitrary units. 40418 7 60 HISTORY (20190114C) Subent was added. 40418 7 61 ENDBIB 59 0 40418 7 62 COMMON 6 3 40418 7 63 KT-NRM MISC ASSUM ASSUM-ERR ERR-1 ERR-2 40418 7 64 MEV CM MB MB PER-CENT PER-CENT 40418 7 65 1.42 50. 1216. 20. 0.07 0.5 40418 7 66 ENDCOMMON 3 0 40418 7 67 DATA 3 73 40418 7 68 E DATA ERR-S 40418 7 69 MEV NO-DIM PER-CENT 40418 7 70 11.360 0.846 4.6 40418 7 71 9.054 0.831 3.5 40418 7 72 7.721 0.827 3.4 40418 7 73 6.886 0.893 3.3 40418 7 74 6.415 0.913 3.2 40418 7 75 5.991 0.968 3.0 40418 7 76 5.608 0.954 3.0 40418 7 77 5.261 0.984 2.8 40418 7 78 4.898 1.002 2.3 40418 7 79 4.524 1.000 2.1 40418 7 80 4.192 1.019 2.0 40418 7 81 3.895 1.015 1.9 40418 7 82 3.629 1.007 1.9 40418 7 83 3.389 0.993 1.8 40418 7 84 3.172 1.024 1.8 40418 7 85 2.975 1.025 1.7 40418 7 86 2.797 1.023 1.7 40418 7 87 2.634 1.026 1.7 40418 7 88 2.484 0.997 1.7 40418 7 89 2.347 1.027 1.7 40418 7 90 2.221 0.988 1.8 40418 7 91 2.105 1.010 1.8 40418 7 92 1.998 1.027 1.8 40418 7 93 1.899 1.033 1.8 40418 7 94 1.807 1.017 1.8 40418 7 95 1.722 1.070 1.8 40418 7 96 1.642 1.036 1.9 40418 7 97 1.568 1.034 2.0 40418 7 98 1.499 1.033 2.0 40418 7 99 1.434 1.043 2.0 40418 7 100 1.373 1.011 2.1 40418 7 101 1.316 0.997 2.2 40418 7 102 1.263 1.040 2.2 40418 7 103 1.213 1.011 2.3 40418 7 104 1.166 0.992 2.4 40418 7 105 1.121 1.029 2.4 40418 7 106 1.079 1.025 2.4 40418 7 107 1.039 0.982 2.5 40418 7 108 1.002 0.999 2.6 40418 7 109 0.966 0.974 2.7 40418 7 110 0.932 1.045 2.7 40418 7 111 0.900 1.020 2.8 40418 7 112 0.870 0.992 2.9 40418 7 113 0.828 0.994 2.2 40418 7 114 0.776 0.958 2.3 40418 7 115 0.728 0.957 2.4 40418 7 116 0.685 1.013 2.4 40418 7 117 0.645 0.954 2.6 40418 7 118 0.609 0.949 2.7 40418 7 119 0.561 0.985 2.0 40418 7 120 0.505 1.013 2.2 40418 7 121 0.456 1.032 2.3 40418 7 122 0.414 1.011 2.5 40418 7 123 0.378 0.949 2.8 40418 7 124 0.346 1.008 2.9 40418 7 125 0.318 1.037 3.1 40418 7 126 0.293 0.976 3.4 40418 7 127 0.272 0.963 3.6 40418 7 128 0.248 0.968 3.2 40418 7 129 0.220 0.932 3.1 40418 7 130 0.192 1.033 3.3 40418 7 131 0.170 0.925 3.8 40418 7 132 0.151 1.002 4.0 40418 7 133 0.136 1.086 4.2 40418 7 134 0.122 1.017 4.8 40418 7 135 0.110 1.079 5.1 40418 7 136 0.098 1.031 4.7 40418 7 137 0.084 1.017 4.7 40418 7 138 0.071 0.951 5.4 40418 7 139 0.062 1.033 5.6 40418 7 140 0.054 0.926 6.9 40418 7 141 0.047 0.891 8.0 40418 7 142 0.042 0.963 8.4 40418 7 143 ENDDATA 75 0 40418 7 144 ENDSUBENT 143 0 40418 799999 SUBENT 40418008 20190114 418140418 8 1 BIB 10 50 40418 8 2 REACTION (98-CF-252(0,F),PR,NU/DE,,MXD) 40418 8 3 Ratio of Cf spectrum to Maxwellian of 1.42 MeV from 40418 8 4 two measurement steps ( average for 25, 50, 100 cm 40418 8 5 flight paths) , average for 79 energy groups 40418 8 6 SAMPLE Cf layers of 4cm diameter, homogeneity ~10% , 40418 8 7 on Pt backings. 40418 8 8 Different weights from 0.01 to 1. microgram . 40418 8 9 Intensity 4.51*10**5 fissions/sec . 40418 8 10 . 99.9% U-235 layer on 0.005 mm thickness Al foil as 40418 8 11 standard; covered by Au, average layer thickness 40418 8 12 1.09+-0.05 mg/cm2 . 40418 8 13 DETECTOR (IOCH) Ionization chamber as fission fragment detector.40418 8 14 Fast ionization chamber with U-235 layer as neutron 40418 8 15 detector. 40418 8 16 Working gas is methane . 40418 8 17 Time resolution of Cf chamber 0.51+-0.02 nsec. 40418 8 18 Total time resolution of spectrometer 1.32+-0.02 nsec.40418 8 19 Neutron detection efficiency : 40418 8 20 (6.48+-0.06)*10**-8 measured by two Cf layers; 40418 8 21 (8.11+-0.13)*10**-8 measured by U-235 . 40418 8 22 Fragment registration efficiency ~ 80%. 40418 8 23 MONITOR (92-U-235(N,F),,SIG) 40418 8 24 ASSUMED (ASSUM,92-U-235(N,F),,SIG,,FIS) 40418 8 25 U-235 fission induced by Cf-252 spon.fission neutrons.40418 8 26 MONIT-REF (,,3,ENDF/B-V,,1978) 40418 8 27 (,D.E.Cullen+,J,NSE,83,497,1983) 40418 8 28 CORRECTION For : 40418 8 29 random coincidence background, 40418 8 30 true-random coincidence background, 40418 8 31 kinematic effects and anisotropy ( see Table 1 of 40418 8 32 INDC(CCP)-0238,1984), 40418 8 33 neutron scattering by air, 40418 8 34 scattering by the chambers, 40418 8 35 time resolution and uncertainty in path length ( see 40418 8 36 Table 2 of INDC(CCP)-0238,1984). 40418 8 37 ERR-ANALYS (ERR-T) Total uncertainty was determined according to 40418 8 38 formula 11.1 in INDC(CCP)-0238,1984 . 40418 8 39 Sources of uncertainties: 40418 8 40 - statistics in channels, 40418 8 41 - corrections. 40418 8 42 (MONIT-ERR,2.5,4.) U-235 fis.c-s uncertainty < 4.% , 40418 8 43 - time resolution and path length ( Table 3 in 40418 8 44 INDC(CCP)-0238,1984), 40418 8 45 - experimental intensity (Table 4 in 40418 8 46 INDC(CCP)-0238,1984) 40418 8 47 STATUS (TABLE) Table 5 of rep. INDC(CCP)-0238,1984 40418 8 48 (DEP,40418007) Spectra ratio for 50 cm flight path 40418 8 49 (DEP,40418004) Spectrum for 25 cm flight path 40418 8 50 This data supersede data of Subent 006. 40418 8 51 HISTORY (20190114C) Subent was added. 40418 8 52 ENDBIB 50 0 40418 8 53 COMMON 3 3 40418 8 54 KT-NRM ASSUM ASSUM-ERR 40418 8 55 MEV MB MB 40418 8 56 1.42 1216. 20. 40418 8 57 ENDCOMMON 3 0 40418 8 58 DATA 3 79 40418 8 59 E DATA ERR-T 40418 8 60 MEV NO-DIM PER-CENT 40418 8 61 11.360 0.880 8.5 40418 8 62 9.054 0.851 6.3 40418 8 63 7.721 0.832 5.8 40418 8 64 6.886 0.893 5.3 40418 8 65 6.415 0.920 5.1 40418 8 66 5.991 0.959 5.0 40418 8 67 5.608 0.954 4.8 40418 8 68 5.261 0.980 4.8 40418 8 69 4.898 0.995 4.5 40418 8 70 4.524 1.002 4.3 40418 8 71 4.192 1.015 4.2 40418 8 72 3.895 1.011 3.7 40418 8 73 3.629 1.007 3.6 40418 8 74 3.389 0.990 3.5 40418 8 75 3.172 1.020 3.5 40418 8 76 2.975 1.028 3.4 40418 8 77 2.797 1.023 3.4 40418 8 78 2.634 1.023 3.4 40418 8 79 2.484 0.905 3.4 40418 8 80 2.347 1.025 3.4 40418 8 81 2.221 0.993 3.5 40418 8 82 2.105 1.011 3.5 40418 8 83 1.998 1.025 3.2 40418 8 84 1.899 1.035 3.0 40418 8 85 1.807 1.017 3.0 40418 8 86 1.722 1.052 3.0 40418 8 87 1.642 1.036 3.0 40418 8 88 1.568 1.034 3.0 40418 8 89 1.499 1.030 3.0 40418 8 90 1.434 1.039 3.0 40418 8 91 1.373 1.015 3.1 40418 8 92 1.316 1.005 3.1 40418 8 93 1.263 1.037 3.1 40418 8 94 1.213 1.015 3.1 40418 8 95 1.166 1.010 3.1 40418 8 96 1.121 1.030 3.1 40418 8 97 1.079 1.021 3.2 40418 8 98 1.039 0.990 3.2 40418 8 99 1.002 1.000 3.3 40418 8 100 0.966 0.981 4.1 40418 8 101 0.932 1.037 4.1 40418 8 102 0.900 1.025 4.2 40418 8 103 0.870 1.000 4.2 40418 8 104 0.828 0.994 4.1 40418 8 105 0.776 0.964 4.1 40418 8 106 0.728 0.969 4.1 40418 8 107 0.685 1.005 4.2 40418 8 108 0.645 0.965 4.2 40418 8 109 0.609 0.980 4.2 40418 8 110 0.561 0.990 4.0 40418 8 111 0.505 1.013 4.0 40418 8 112 0.456 1.025 4.0 40418 8 113 0.414 1.015 4.1 40418 8 114 0.378 0.975 4.2 40418 8 115 0.346 1.005 4.2 40418 8 116 0.318 1.010 4.3 40418 8 117 0.293 0.991 4.3 40418 8 118 0.272 0.967 4.4 40418 8 119 0.248 0.981 4.5 40418 8 120 0.220 0.936 4.5 40418 8 121 0.192 1.000 4.5 40418 8 122 0.170 0.960 4.5 40418 8 123 0.151 0.999 4.5 40418 8 124 0.136 1.040 4.7 40418 8 125 0.122 1.017 4.8 40418 8 126 0.110 1.038 4.8 40418 8 127 0.098 1.021 4.9 40418 8 128 0.084 1.015 6.6 40418 8 129 0.071 0.971 6.7 40418 8 130 0.061 0.999 6.7 40418 8 131 0.053 0.940 6.7 40418 8 132 0.047 0.931 6.7 40418 8 133 0.041 0.952 6.8 40418 8 134 0.034 0.921 6.8 40418 8 135 0.029 1.020 7.1 40418 8 136 0.025 0.964 7.4 40418 8 137 0.020 1.000 7.8 40418 8 138 0.016 0.926 8.5 40418 8 139 0.012 0.963 11.6 40418 8 140 ENDDATA 81 0 40418 8 141 ENDSUBENT 140 0 40418 899999 SUBENT 40418009 20190114 418140418 9 1 BIB 4 6 40418 9 2 REACTION (98-CF-252(0,F)0-NN-1,PR,KE) 40418 9 3 ANALYSIS Average energy for neutron spectrum at 0.01 - 10 MeV 40418 9 4 energy range 40418 9 5 STATUS (TABLE) Text, page 38 of rep. INDC(CCP)-0238,1984 40418 9 6 (DEP,40418007) Spectrum ratio 40418 9 7 HISTORY (20190114C) Subent was added. 40418 9 8 ENDBIB 6 0 40418 9 9 NOCOMMON 0 0 3 40418 9 10 DATA 1 1 40418 9 11 DATA 40418 9 12 MEV 40418 9 13 2.116 40418 9 14 ENDDATA 3 0 40418 9 15 ENDSUBENT 14 0 40418 999999 ENDENTRY 9 0 4041899999999