ENTRY 23243 20150520 22442324300000001 SUBENT 23243001 20150520 22442324300100001 BIB 13 46 2324300100002 TITLE The energy of delayed neutrons from fission. 2324300100003 AUTHOR (R.Batchelor, H.R.McK.Hyder) 2324300100004 INSTITUTE (2UK HAR) 2324300100005 REFERENCE (J,JNE,3,7,1956) 2324300100006 REL-REF (I,,R.Batchelor+,J,RSI,26,1037,1955) 2324300100007 He-3 neutron spectrometer details. 2324300100008 FACILITY (REAC,2UK HAR) BEPO reactor. 2324300100009 INC-SOURCE (REAC) 2324300100010 INC-SPECT Thermal neutrons flux in BEPO about 6.E+10 n/cm2/sec. 2324300100011 SAMPLE 350 mg of U-235 cylinder in Ni case. 2324300100012 After irradiation the sample was ejected during 0.8 sec2324300100013 by pneumatic rabbit to counting position outside pile 2324300100014 shield. 2324300100015 DETECTOR (HE3SP) He-3 spectrometer. 2324300100016 METHOD (PHD) By varying the irradiation and counting times, 2324300100017 the four longest period were accentuated in turn. 2324300100018 The neutron energy spectrum associated with each period2324300100019 was interred from measured pulse-height distribution, 2324300100020 using the published data on half-lives and relative 2324300100021 intensities. 2324300100022 About 600,350,700,900 cycles were counted for different2324300100023 irradiation sequences - Table 2: 2324300100024 t1,t2,t3, sec - times at which the irradiation stopped 2324300100025 and kicksorter gate opened and shut, respectively. 2324300100026 T, sec- Cycle time. 2324300100027 N- number of cycles. 2324300100028 Sequence t1 t1 t3 T N 2324300100029 A 100 200 320 360 5 2324300100030 B 40.3 60 100 120 10 2324300100031 C 4.3 6 16 60 10 2324300100032 D 1.35 2.1 6.03 30 20 2324300100033 Number of neutrons S-i emitted during different time 2324300100034 sequence ( i - group number) : 2324300100035 Sequence S-1 S-2 S-3 S-4 S-5 2324300100036 Ref.Hughes: 2324300100037 A 33+-8 21+-2 - - - 2324300100038 B 31+-8 149+-15 6.6+-0.4 - - 2324300100039 C 2.1+-0.5 20+-2 40.5+-2.5 20.7+-1 0.34+-0.082324300100040 D 0.46+-0.12 4.0+-0.4 10.8+-0.6 14.3+-0.7 1.15+-0.152324300100041 Ref.Keepin: 2324300100042 A 31+-5 18+-2 - - - 2324300100043 B 31+-5 131+-13 11+-2 - - 2324300100044 C 2.1+-0.3 17.5+-2.5 26+-4 37.4+-2 0.48+-0.042324300100045 D 0.46+-0.07 3.4+-0.5 5.9+-0.9 17.6+-0.8 29.1+-1.3 2324300100046 CORRECTION Background was measured without sample. 2324300100047 HISTORY (20150520C) M.M. 2324300100048 ENDBIB 46 0 2324300100049 COMMON 1 3 2324300100050 EN-DUMMY 2324300100051 EV 2324300100052 0.0253 2324300100053 ENDCOMMON 3 0 2324300100054 ENDSUBENT 53 0 2324300199999 SUBENT 23243002 20150520 22442324300200001 BIB 7 32 2324300200002 REACTION (92-U-235(N,F),DL/GRP,NU/DE,,REL) 2324300200003 Delayed neutron spectrum in arb.units for specific 2324300200004 group . 2324300200005 EN-SEC (E,N) Energy of delayed neutrons. 2324300200006 ANALYSIS Spectra for separate delayed-neutron periods were 2324300200007 calculated from the observed composite spectra and the 2324300200008 estimates of S-i of Hughes+ or Keepin+. 2324300200009 ASSUMED (ASSUM,(92-U-235(N,F),DL/GRP,NU)/(92-U-235(N,F),DL,NU))2324300200010 Relative intensity and HL (Table 1) were used from: 2324300200011 REL-REF (R,,D.J.Hughes+,J,PR,73,111,1948) 2324300200012 ERR-ANALYS (E-ERR-DIG) Digitizing error of E ( X scale) 2324300200013 (ERR-DIG) Digitizing error of DATA ( Y scale) 2324300200014 Quantization errors: 2324300200015 scale X - 0.002 MeV, scale Y - 0.008 arb.units. 2324300200016 (ERR-S) Approx. stat. error ( digitized from Fig4.a) 2324300200017 Other errors from causes: 2324300200018 (ERR-1) Correction for variation of wall effect and 2324300200019 He-3(n,p)H-3 cross-section - 6%. 2324300200020 (ERR-2,,10.) Error due to He-3 recoil from neutrons of 2324300200021 energies > 1 MeV; 10% maximal at zero neutron energy, 2324300200022 become negligible at 100 keV. 2324300200023 (ERR-3,,5.) Error due to effect of neutron scattering 2324300200024 was estimated by 2 additional measurements. 2324300200025 Errors arising from uncertainties in the data 2324300200026 on half-lives and neutron intensities ( Table 1) were 2324300200027 estimated from two sets of exp.points on Fig.4. to be 2324300200028 about equal or less than stat.error. 2324300200029 (ERR-SYS,6.,15.) Total systematic error is about 2324300200030 +6, -15 % at zero energy, varying slowly to about 2324300200031 +-8% at 1 MeV. 2324300200032 E-RSL-FW -Energy resolution FWHM,digitized from Fig.4a2324300200033 STATUS (CURVE) Fig.4a of J,JNE,3,7,1956. 2324300200034 ENDBIB 32 0 2324300200035 COMMON 9 6 2324300200036 E-ERR-DIG ERR-DIG E-RSL-FW ERR-S GRP-NUM HL 2324300200037 HL-ERR ASSUM ASSUM-ERR 2324300200038 MEV ARB-UNITS MEV ARB-UNITS NO-DIM SEC 2324300200039 SEC NO-DIM NO-DIM 2324300200040 0.0020 0.0144 0.0891 0.1892 1. 55.6 2324300200041 0.2 0.034 0.009 2324300200042 ENDCOMMON 6 0 2324300200043 DATA 2 47 2324300200044 E DATA 2324300200045 MEV ARB-UNITS 2324300200046 0.050 4.2481 2324300200047 0.075 3.7516 2324300200048 0.100 3.4680 2324300200049 0.125 3.7601 2324300200050 0.150 3.5632 2324300200051 0.175 2.9326 2324300200052 0.200 2.8303 2324300200053 0.225 2.4205 2324300200054 0.250 2.0738 2324300200055 0.275 1.5457 2324300200056 0.300 1.0019 2324300200057 0.325 1.0810 2324300200058 0.350 0.9867 2324300200059 0.375 0.7898 2324300200060 0.400 1.0661 2324300200061 0.425 0.9717 2324300200062 0.450 0.9720 2324300200063 0.475 0.7357 2324300200064 0.500 0.5467 2324300200065 0.525 0.6732 2324300200066 0.550 0.4605 2324300200067 0.575 0.3504 2324300200068 0.600 0.3664 2324300200069 0.625 0.2879 2324300200070 0.650 0.2724 2324300200071 0.675 0.4068 2324300200072 0.700 0.3124 2324300200073 0.725 0.2495 2324300200074 0.750 0.1788 2324300200075 0.775 0.3999 2324300200076 0.800 0.2189 2324300200077 0.825 0.3375 2324300200078 0.850 0.4402 2324300200079 0.875 0.2039 2324300200080 0.900 0.1175 2324300200081 0.925 0.1651 2324300200082 0.950 0.1811 2324300200083 0.975 0.1814 2324300200084 1.000 0.0949 2324300200085 1.025 0.1583 2324300200086 1.050 0.1666 2324300200087 1.075 0.1195 2324300200088 1.100 0.0567 2324300200089 1.125 0.1910 2324300200090 1.150 0.1677 2324300200091 1.175 0.0575 2324300200092 1.200 0.0893 2324300200093 ENDDATA 49 0 2324300200094 ENDSUBENT 93 0 2324300299999 SUBENT 23243003 20150520 22442324300300001 BIB 7 32 2324300300002 REACTION (92-U-235(N,F),DL/GRP,NU/DE,,REL) 2324300300003 Delayed neutron spectrum in arb.units for specific 2324300300004 group . 2324300300005 EN-SEC (E,N) Energy of delayed neutrons. 2324300300006 ANALYSIS Spectra for separate delayed-neutron periods were 2324300300007 calculated from the observed composite spectra and the 2324300300008 estimates of S-i of Hughes+ or Keepin+. 2324300300009 ASSUMED (ASSUM,(92-U-235(N,F),DL/GRP,NU)/(92-U-235(N,F),DL,NU))2324300300010 Relative intensity and HL (Table 1) were used from: 2324300300011 REL-REF (R,,G.R.Keepin,B,PR.NUC.EN.,1,1956) 2324300300012 ERR-ANALYS (E-ERR-DIG) Digitizing error of E ( X scale) 2324300300013 (ERR-DIG) Digitizing error of DATA ( Y scale) 2324300300014 Quantization errors: 2324300300015 scale X - 0.002 MeV, scale Y - 0.008 arb.units. 2324300300016 (ERR-S) Approx. stat. error ( digitized from Fig4.a) 2324300300017 Other errors from causes: 2324300300018 (ERR-1) Correction for variation of wall effect and 2324300300019 He-3(n,p)H-3 cross-section - 6%. 2324300300020 (ERR-2,,10.) Error due to He-3 recoil from neutrons of 2324300300021 energies > 1 MeV; 10% maximal at zero neutron energy, 2324300300022 become negligible at 100 keV. 2324300300023 (ERR-3,,5.) Error due to effect of neutron scattering 2324300300024 was estimated by 2 additional measurements. 2324300300025 Errors arising from uncertainties in the data 2324300300026 on half-lives and neutron intensities ( Table 1) were 2324300300027 estimated from two sets of exp.points on Fig.4. to be 2324300300028 about equal or less than stat.error. 2324300300029 (ERR-SYS,6.,15.) Total systematic error is about 2324300300030 +6, -15 % at zero energy, varying slowly to about 2324300300031 +-8% at 1 MeV. 2324300300032 E-RSL-FW -Energy resolution FWHM,digitized from Fig.4a2324300300033 STATUS (CURVE) Fig.4a of J,JNE,3,7,1956. 2324300300034 ENDBIB 32 0 2324300300035 COMMON 9 6 2324300300036 E-ERR-DIG ERR-DIG E-RSL-FW ERR-S GRP-NUM HL 2324300300037 HL-ERR ASSUM ASSUM-ERR 2324300300038 MEV ARB-UNITS MEV ARB-UNITS NO-DIM SEC 2324300300039 SEC NO-DIM NO-DIM 2324300300040 0.0020 0.0144 0.0891 0.1892 1. 54.3 2324300300041 0.9 0.036 0.006 2324300300042 ENDCOMMON 6 0 2324300300043 DATA 2 47 2324300300044 E DATA 2324300300045 MEV ARB-UNITS 2324300300046 0.050 4.5557 2324300300047 0.075 4.0750 2324300300048 0.100 3.8150 2324300300049 0.125 4.0834 2324300300050 0.150 3.8471 2324300300051 0.175 3.1771 2324300300052 0.200 3.0511 2324300300053 0.225 2.6098 2324300300054 0.250 2.2631 2324300300055 0.275 1.6877 2324300300056 0.300 1.1596 2324300300057 0.325 1.2309 2324300300058 0.350 1.0813 2324300300059 0.375 0.9712 2324300300060 0.400 1.2238 2324300300061 0.425 1.2399 2324300300062 0.450 1.1219 2324300300063 0.475 0.8698 2324300300064 0.500 0.7202 2324300300065 0.525 0.7757 2324300300066 0.550 0.5710 2324300300067 0.575 0.4529 2324300300068 0.600 0.4296 2324300300069 0.625 0.3904 2324300300070 0.650 0.3592 2324300300071 0.675 0.5093 2324300300072 0.700 0.3597 2324300300073 0.725 0.2653 2324300300074 0.750 0.2420 2324300300075 0.775 0.4552 2324300300076 0.800 0.3057 2324300300077 0.825 0.4005 2324300300078 0.850 0.4876 2324300300079 0.875 0.2907 2324300300080 0.900 0.1963 2324300300081 0.925 0.2597 2324300300082 0.950 0.1811 2324300300083 0.975 0.1814 2324300300084 1.000 0.1501 2324300300085 1.025 0.2372 2324300300086 1.050 0.1666 2324300300087 1.075 0.1195 2324300300088 1.100 0.0488 2324300300089 1.125 0.1910 2324300300090 1.150 0.1755 2324300300091 1.175 0.0575 2324300300092 1.200 0.0815 2324300300093 ENDDATA 49 0 2324300300094 ENDSUBENT 93 0 2324300399999 SUBENT 23243004 20150520 22442324300400001 BIB 7 32 2324300400002 REACTION (92-U-235(N,F),DL/GRP,NU/DE,,REL) 2324300400003 Delayed neutron spectrum in arb.units for specific 2324300400004 group . 2324300400005 EN-SEC (E,N) Energy of delayed neutrons. 2324300400006 ANALYSIS Spectra for separate delayed-neutron periods were 2324300400007 calculated from the observed composite spectra and the 2324300400008 estimates of S-i of Hughes+ or Keepin+. 2324300400009 ASSUMED (ASSUM,(92-U-235(N,F),DL/GRP,NU)/(92-U-235(N,F),DL,NU))2324300400010 Relative intensity and HL (Table 1) were used from: 2324300400011 REL-REF (R,,D.J.Hughes+,J,PR,73,111,1948) 2324300400012 ERR-ANALYS (E-ERR-DIG) Digitizing error of E ( X scale) 2324300400013 (ERR-DIG) Digitizing error of DATA ( Y scale) 2324300400014 Quantization errors: 2324300400015 scale X - 0.002 MeV, scale Y - 0.008 arb.units. 2324300400016 (ERR-S) Approx. stat. error. 2324300400017 Other errors from causes: 2324300400018 (ERR-1) Correction for variation of wall effect and 2324300400019 He-3(n,p)H-3 cross-section - 6%. 2324300400020 (ERR-2,,10.) Error due to He-3 recoil from neutrons of 2324300400021 energies > 1 MeV; 10% maximal at zero neutron energy, 2324300400022 become negligible at 100 keV. 2324300400023 (ERR-3,,5.) Error due to effect of neutron scattering 2324300400024 was estimated by 2 additional measurements. 2324300400025 Errors arising from uncertainties in the data 2324300400026 on half-lives and neutron intensities ( Table 1) were 2324300400027 estimated from two sets of exp.points on Fig.4. to be 2324300400028 about equal or less than stat.error. 2324300400029 (ERR-SYS,6.,15.) Total systematic error is about 2324300400030 +6, -15 % at zero energy, varying slowly to about 2324300400031 +-8% at 1 MeV. 2324300400032 E-RSL-FW -Energy resolution FWHM,digitized from Fig.4a 2324300400033 STATUS (CURVE) Fig.4b of J,JNE,3,7,1956. 2324300400034 ENDBIB 32 0 2324300400035 COMMON 9 6 2324300400036 E-ERR-DIG ERR-DIG E-RSL-FW ERR-S GRP-NUM HL 2324300400037 HL-ERR ASSUM ASSUM-ERR 2324300400038 MEV ARB-UNITS MEV ARB-UNITS NO-DIM SEC 2324300400039 SEC NO-DIM NO-DIM 2324300400040 0.0042 0.0131 0.0891 0.1423 2. 22.0 2324300400041 0.2 0.220 0.023 2324300400042 ENDCOMMON 6 0 2324300400043 DATA 2 47 2324300400044 E DATA 2324300400045 MEV ARB-UNITS 2324300400046 0.050 2.9126 2324300400047 0.075 3.1184 2324300400048 0.100 3.0238 2324300400049 0.125 2.9291 2324300400050 0.150 2.6922 2324300400051 0.175 2.7715 2324300400052 0.200 2.8350 2324300400053 0.225 2.9933 2324300400054 0.250 3.2386 2324300400055 0.275 3.2942 2324300400056 0.300 3.7291 2324300400057 0.325 3.9665 2324300400058 0.350 4.0379 2324300400059 0.375 4.1725 2324300400060 0.400 3.9356 2324300400061 0.425 3.7145 2324300400062 0.450 3.5803 2324300400063 0.475 3.6359 2324300400064 0.500 3.2488 2324300400065 0.525 2.8696 2324300400066 0.550 2.5141 2324300400067 0.575 2.4115 2324300400068 0.600 2.0719 2324300400069 0.625 1.9298 2324300400070 0.650 1.8194 2324300400071 0.675 1.7169 2324300400072 0.700 1.8357 2324300400073 0.725 1.8833 2324300400074 0.750 1.7097 2324300400075 0.775 1.6308 2324300400076 0.800 1.5915 2324300400077 0.825 1.4494 2324300400078 0.850 1.2521 2324300400079 0.875 1.0942 2324300400080 0.900 1.0391 2324300400081 0.925 0.8813 2324300400082 0.950 0.8973 2324300400083 0.975 0.7710 2324300400084 1.000 0.7238 2324300400085 1.025 0.6213 2324300400086 1.050 0.6374 2324300400087 1.075 0.5427 2324300400088 1.100 0.5271 2324300400089 1.125 0.4404 2324300400090 1.150 0.4011 2324300400091 1.175 0.3381 2324300400092 1.200 0.2751 2324300400093 ENDDATA 49 0 2324300400094 ENDSUBENT 93 0 2324300499999 SUBENT 23243005 20150520 22442324300500001 BIB 7 32 2324300500002 REACTION (92-U-235(N,F),DL/GRP,NU/DE,,REL) 2324300500003 Delayed neutron spectrum in arb.units for specific 2324300500004 group . 2324300500005 EN-SEC (E,N) Energy of delayed neutrons. 2324300500006 ANALYSIS Spectra for separate delayed-neutron periods were 2324300500007 calculated from the observed composite spectra and the 2324300500008 estimates of S-i of Hughes+ or Keepin+. 2324300500009 ASSUMED (ASSUM,(92-U-235(N,F),DL/GRP,NU)/(92-U-235(N,F),DL,NU))2324300500010 Relative intensity and HL (Table 1) were used from: 2324300500011 REL-REF (R,,G.R.Keepin,B,PR.NUC.EN.,1,1956) 2324300500012 ERR-ANALYS (E-ERR-DIG) Digitizing error of E ( X scale) 2324300500013 (ERR-DIG) Digitizing error of DATA ( Y scale) 2324300500014 Quantization errors: 2324300500015 scale X - 0.002 MeV, scale Y - 0.008 arb.units. 2324300500016 (ERR-S) Approx. stat. error. 2324300500017 Other errors from causes: 2324300500018 (ERR-1) Correction for variation of wall effect and 2324300500019 He-3(n,p)H-3 cross-section - 6%. 2324300500020 (ERR-2,,10.) Error due to He-3 recoil from neutrons of 2324300500021 energies > 1 MeV; 10% maximal at zero neutron energy, 2324300500022 become negligible at 100 keV. 2324300500023 (ERR-3,,5.) Error due to effect of neutron scattering 2324300500024 was estimated by 2 additional measurements. 2324300500025 Errors arising from uncertainties in the data 2324300500026 on half-lives and neutron intensities ( Table 1) were 2324300500027 estimated from two sets of exp.points on Fig.4. to be 2324300500028 about equal or less than stat.error. 2324300500029 (ERR-SYS,6.,15.) Total systematic error is about 2324300500030 +6, -15 % at zero energy, varying slowly to about 2324300500031 +-8% at 1 MeV. 2324300500032 E-RSL-FW -Energy resolution FWHM,digitized from Fig.4a 2324300500033 STATUS (CURVE) Fig.4b of J,JNE,3,7,1956. 2324300500034 ENDBIB 32 0 2324300500035 COMMON 9 6 2324300500036 E-ERR-DIG ERR-DIG E-RSL-FW ERR-S GRP-NUM HL 2324300500037 HL-ERR ASSUM ASSUM-ERR 2324300500038 MEV ARB-UNITS MEV ARB-UNITS NO-DIM SEC 2324300500039 SEC NO-DIM NO-DIM 2324300500040 0.0042 0.0131 0.0891 0.1423 2. 21.7 2324300500041 0.8 0.210 0.019 2324300500042 ENDCOMMON 6 0 2324300500043 DATA 2 47 2324300500044 E DATA 2324300500045 MEV ARB-UNITS 2324300500046 0.050 2.7703 2324300500047 0.075 2.9919 2324300500048 0.100 2.8341 2324300500049 0.125 2.6446 2324300500050 0.150 2.7713 2324300500051 0.175 2.8268 2324300500052 0.200 2.8903 2324300500053 0.225 3.0012 2324300500054 0.250 3.2307 2324300500055 0.275 3.4522 2324300500056 0.300 3.9742 2324300500057 0.325 4.2195 2324300500058 0.350 4.2276 2324300500059 0.375 4.4018 2324300500060 0.400 4.1728 2324300500061 0.425 3.9438 2324300500062 0.450 3.8570 2324300500063 0.475 3.8573 2324300500064 0.500 3.4385 2324300500065 0.525 3.1226 2324300500066 0.550 2.6485 2324300500067 0.575 2.6408 2324300500068 0.600 2.2458 2324300500069 0.625 1.9694 2324300500070 0.650 1.8905 2324300500071 0.675 1.7880 2324300500072 0.700 1.8989 2324300500073 0.725 1.9782 2324300500074 0.750 1.8203 2324300500075 0.775 1.7178 2324300500076 0.800 1.7338 2324300500077 0.825 1.5681 2324300500078 0.850 1.3944 2324300500079 0.875 1.1890 2324300500080 0.900 1.1577 2324300500081 0.925 0.9919 2324300500082 0.950 0.9684 2324300500083 0.975 0.8896 2324300500084 1.000 0.8108 2324300500085 1.025 0.7241 2324300500086 1.050 0.7164 2324300500087 1.075 0.5980 2324300500088 1.100 0.6220 2324300500089 1.125 0.5115 2324300500090 1.150 0.4723 2324300500091 1.175 0.3934 2324300500092 1.200 0.3383 2324300500093 ENDDATA 49 0 2324300500094 ENDSUBENT 93 0 2324300599999 SUBENT 23243006 20150520 22442324300600001 BIB 7 32 2324300600002 REACTION (92-U-235(N,F),DL/GRP,NU/DE,,REL) 2324300600003 Delayed neutron spectrum in arb.units for specific 2324300600004 group . 2324300600005 EN-SEC (E,N) Energy of delayed neutrons. 2324300600006 ANALYSIS Spectra for separate delayed-neutron periods were 2324300600007 calculated from the observed composite spectra and the 2324300600008 estimates of S-i of Hughes+ or Keepin+. 2324300600009 ASSUMED (ASSUM,(92-U-235(N,F),DL/GRP,NU)/(92-U-235(N,F),DL,NU))2324300600010 Relative intensity and HL (Table 1) were used from: 2324300600011 REL-REF (R,,D.J.Hughes+,J,PR,73,111,1948) 2324300600012 ERR-ANALYS (E-ERR-DIG) Digitizing error of E ( X scale) 2324300600013 (ERR-DIG) Digitizing error of DATA ( Y scale) 2324300600014 Quantization errors: 2324300600015 scale X - 0.0016 MeV, scale Y - 0.008 arb.units. 2324300600016 (ERR-S) Approx. stat. error. 2324300600017 Other errors from causes: 2324300600018 (ERR-1) Correction for variation of wall effect and 2324300600019 He-3(n,p)H-3 cross-section - 6%. 2324300600020 (ERR-2,,10.) Error due to He-3 recoil from neutrons of 2324300600021 energies > 1 MeV; 10% maximal at zero neutron energy, 2324300600022 become negligible at 100 keV. 2324300600023 (ERR-3,,5.) Error due to effect of neutron scattering 2324300600024 was estimated by 2 additional measurements. 2324300600025 Errors arising from uncertainties in the data 2324300600026 on half-lives and neutron intensities ( Table 1) were 2324300600027 estimated from two sets of exp.points on Fig.4. to be 2324300600028 about equal or less than stat.error. 2324300600029 (ERR-SYS,6.,15.) Total systematic error is about 2324300600030 +6, -15 % at zero energy, varying slowly to about 2324300600031 +-8% at 1 MeV. 2324300600032 E-RSL-FW -Energy resolution FWHM,digitized from Fig.4a 2324300600033 STATUS (CURVE) Fig.4c of J,JNE,3,7,1956. 2324300600034 ENDBIB 32 0 2324300600035 COMMON 9 6 2324300600036 E-ERR-DIG ERR-DIG E-RSL-FW ERR-S GRP-NUM HL 2324300600037 HL-ERR ASSUM ASSUM-ERR 2324300600038 MEV ARB-UNITS MEV ARB-UNITS NO-DIM SEC 2324300600039 SEC NO-DIM NO-DIM 2324300600040 0.0038 0.1728 0.0891 0.2505 3. 4.51 2324300600041 0.1 0.282 0.017 2324300600042 ENDCOMMON 6 0 2324300600043 DATA 2 47 2324300600044 E DATA 2324300600045 MEV ARB-UNITS 2324300600046 0.050 2.5264 2324300600047 0.075 2.7850 2324300600048 0.100 2.9495 2324300600049 0.125 2.9340 2324300600050 0.150 2.4565 2324300600051 0.175 2.0964 2324300600052 0.200 2.2218 2324300600053 0.225 2.1906 2324300600054 0.250 2.0654 2324300600055 0.275 2.0421 2324300600056 0.300 2.0657 2324300600057 0.325 2.0736 2324300600058 0.350 2.1443 2324300600059 0.375 1.9486 2324300600060 0.400 1.7686 2324300600061 0.425 1.6748 2324300600062 0.450 1.5966 2324300600063 0.475 1.9335 2324300600064 0.500 1.7535 2324300600065 0.525 1.2916 2324300600066 0.550 1.6754 2324300600067 0.575 1.3702 2324300600068 0.600 1.4016 2324300600069 0.625 1.4566 2324300600070 0.650 1.3627 2324300600071 0.675 1.3002 2324300600072 0.700 1.2220 2324300600073 0.725 0.9637 2324300600074 0.750 1.0578 2324300600075 0.775 0.9405 2324300600076 0.800 0.8232 2324300600077 0.825 0.7293 2324300600078 0.850 0.5102 2324300600079 0.875 0.5651 2324300600080 0.900 0.5574 2324300600081 0.925 0.4401 2324300600082 0.950 0.3854 2324300600083 0.975 0.3307 2324300600084 1.000 0.3857 2324300600085 1.025 0.3701 2324300600086 1.050 0.2841 2324300600087 1.075 0.3391 2324300600088 1.100 0.2295 2324300600089 1.125 0.2688 2324300600090 1.150 0.2220 2324300600091 1.175 0.1673 2324300600092 1.200 0.1831 2324300600093 ENDDATA 49 0 2324300600094 ENDSUBENT 93 0 2324300699999 SUBENT 23243007 20150520 22442324300700001 BIB 7 32 2324300700002 REACTION (92-U-235(N,F),DL/GRP,NU/DE,,REL) 2324300700003 Delayed neutron spectrum in arb.units for specific 2324300700004 group . 2324300700005 EN-SEC (E,N) Energy of delayed neutrons. 2324300700006 ANALYSIS Spectra for separate delayed-neutron periods were 2324300700007 calculated from the observed composite spectra and the 2324300700008 estimates of S-i of Hughes+ or Keepin+. 2324300700009 ASSUMED (ASSUM,(92-U-235(N,F),DL/GRP,NU)/(92-U-235(N,F),DL,NU))2324300700010 Relative intensity and HL (Table 1) were used from: 2324300700011 REL-REF (R,,G.R.Keepin,B,PR.NUC.EN.,1,1956) 2324300700012 ERR-ANALYS (E-ERR-DIG) Digitizing error of E ( X scale) 2324300700013 (ERR-DIG) Digitizing error of DATA ( Y scale) 2324300700014 Quantization errors: 2324300700015 scale X - 0.0016 MeV, scale Y - 0.008 arb.units. 2324300700016 (ERR-S) Approx. stat. error. 2324300700017 Other errors from causes: 2324300700018 (ERR-1) Correction for variation of wall effect and 2324300700019 He-3(n,p)H-3 cross-section - 6%. 2324300700020 (ERR-2,,10.) Error due to He-3 recoil from neutrons of 2324300700021 energies > 1 MeV; 10% maximal at zero neutron energy, 2324300700022 become negligible at 100 keV. 2324300700023 (ERR-3,,5.) Error due to effect of neutron scattering 2324300700024 was estimated by 2 additional measurements. 2324300700025 Errors arising from uncertainties in the data 2324300700026 on half-lives and neutron intensities ( Table 1) were 2324300700027 estimated from two sets of exp.points on Fig.4. to be 2324300700028 about equal or less than stat.error. 2324300700029 (ERR-SYS,6.,15.) Total systematic error is about 2324300700030 +6, -15 % at zero energy, varying slowly to about 2324300700031 +-8% at 1 MeV. 2324300700032 E-RSL-FW -Energy resolution FWHM,digitized from Fig.4a 2324300700033 STATUS (CURVE) Fig.4c of J,JNE,3,7,1956. 2324300700034 ENDBIB 32 0 2324300700035 COMMON 9 6 2324300700036 E-ERR-DIG ERR-DIG E-RSL-FW ERR-S GRP-NUM HL 2324300700037 HL-ERR ASSUM ASSUM-ERR 2324300700038 MEV ARB-UNITS MEV ARB-UNITS NO-DIM SEC 2324300700039 SEC NO-DIM NO-DIM 2324300700040 0.0038 0.1728 0.0891 0.2505 3. 5.87 2324300700041 0.17 0.192 0.027 2324300700042 ENDCOMMON 6 0 2324300700043 DATA 2 47 2324300700044 E DATA 2324300700045 MEV ARB-UNITS 2324300700046 0.050 2.3855 2324300700047 0.075 3.2783 2324300700048 0.100 3.4820 2324300700049 0.125 3.7328 2324300700050 0.150 2.4095 2324300700051 0.175 1.6422 2324300700052 0.200 2.0574 2324300700053 0.225 2.0888 2324300700054 0.250 1.9793 2324300700055 0.275 1.9559 2324300700056 0.300 2.0579 2324300700057 0.325 2.1676 2324300700058 0.350 2.4105 2324300700059 0.375 2.0582 2324300700060 0.400 1.8626 2324300700061 0.425 1.8706 2324300700062 0.450 1.4557 2324300700063 0.475 2.0509 2324300700064 0.500 1.8474 2324300700065 0.525 1.0254 2324300700066 0.550 1.7537 2324300700067 0.575 1.1822 2324300700068 0.600 1.3390 2324300700069 0.625 1.6601 2324300700070 0.650 1.5350 2324300700071 0.675 1.5508 2324300700072 0.700 1.3708 2324300700073 0.725 0.9011 2324300700074 0.750 1.1753 2324300700075 0.775 1.0423 2324300700076 0.800 0.7449 2324300700077 0.825 0.6667 2324300700078 0.850 0.3379 2324300700079 0.875 0.4477 2324300700080 0.900 0.4635 2324300700081 0.925 0.2600 2324300700082 0.950 0.3149 2324300700083 0.975 0.2602 2324300700084 1.000 0.3073 2324300700085 1.025 0.4484 2324300700086 1.050 0.2371 2324300700087 1.075 0.2686 2324300700088 1.100 0.1669 2324300700089 1.125 0.2218 2324300700090 1.150 0.1750 2324300700091 1.175 0.1125 2324300700092 1.200 0.1126 2324300700093 ENDDATA 49 0 2324300700094 ENDSUBENT 93 0 2324300799999 SUBENT 23243008 20150520 22442324300800001 BIB 8 38 2324300800002 REACTION (92-U-235(N,F),DL/GRP,NU/DE,,REL) 2324300800003 Delayed neutron spectrum in arb.units for specific 2324300800004 group . 2324300800005 EN-SEC (E,N) Energy of delayed neutrons. 2324300800006 ANALYSIS Spectra for separate delayed-neutron periods were 2324300800007 calculated from the observed composite spectra and the 2324300800008 estimates of S-i of Hughes+ or Keepin+. 2324300800009 It was assumed that 4th and 5th periods have identical 2324300800010 spectra . Spectrum of period 4 contains about 10% of 2324300800011 contribution from period 5. 2324300800012 ASSUMED (ASSUM,(92-U-235(N,F),DL/GRP,NU)/(92-U-235(N,F),DL,NU))2324300800013 Relative intensity and HL (Table 1) were used from: 2324300800014 REL-REF (R,,D.J.Hughes+,J,PR,73,111,1948) 2324300800015 ERR-ANALYS (E-ERR-DIG) Digitizing error of E ( X scale) 2324300800016 (ERR-DIG) Digitizing error of DATA ( Y scale) 2324300800017 Quantization errors: 2324300800018 scale X - 0.002 keV, scale Y - 0.008 arb.units. 2324300800019 (ERR-S) Approx. stat. error. 2324300800020 Other errors from causes: 2324300800021 (ERR-1) Correction for variation of wall effect and 2324300800022 He-3(n,p)H-3 cross-section - 6%. 2324300800023 (ERR-2,,10.) Error due to He-3 recoil from neutrons of 2324300800024 energies > 1 MeV; 10% maximal at zero neutron energy, 2324300800025 become negligible at 100 keV. 2324300800026 (ERR-3,,5.) Error due to effect of neutron scattering 2324300800027 was estimated by 2 additional measurements. 2324300800028 Errors arising from uncertainties in the data 2324300800029 on half-lives and neutron intensities ( Table 1) were 2324300800030 estimated from two sets of exp.points on Fig.4. to be 2324300800031 about equal or less than stat.error. 2324300800032 (ERR-SYS,6.,15.) Total systematic error is about 2324300800033 +6, -15 % at zero energy, varying slowly to about 2324300800034 +-8% at 1 MeV. 2324300800035 E-RSL-FW -Energy resolution FWHM,digitized from Fig.4a 2324300800036 COMMENT Of compiler. On Fig.4d there is an point ( E=0.575 MeV,2324300800037 data 2.2427 arb.units), which looks like duplicative a2324300800038 this E; it was not inserted in DATA block. 2324300800039 STATUS (CURVE) Fig.4d of J,JNE,3,7,1956. 2324300800040 ENDBIB 38 0 2324300800041 COMMON 9 6 2324300800042 E-ERR-DIG ERR-DIG E-RSL-FW ERR-S GRP-NUM HL 2324300800043 HL-ERR ASSUM ASSUM-ERR 2324300800044 MEV ARB-UNITS MEV ARB-UNITS NO-DIM SEC 2324300800045 SEC NO-DIM NO-DIM 2324300800046 0.0027 0.0252 0.0891 0.4772 4. 1.52 2324300800047 0.05 0.319 0.017 2324300800048 ENDCOMMON 6 0 2324300800049 DATA 2 47 2324300800050 E DATA 2324300800051 MEV ARB-UNITS 2324300800052 0.050 2.1090 2324300800053 0.075 1.8895 2324300800054 0.100 1.7953 2324300800055 0.125 1.6463 2324300800056 0.150 2.9134 2324300800057 0.175 3.6252 2324300800058 0.200 2.9441 2324300800059 0.225 2.6152 2324300800060 0.250 2.5522 2324300800061 0.275 2.4423 2324300800062 0.300 2.1603 2324300800063 0.325 1.9409 2324300800064 0.350 1.6354 2324300800065 0.375 1.6038 2324300800066 0.400 1.7051 2324300800067 0.425 1.8769 2324300800068 0.450 2.1270 2324300800069 0.475 1.6649 2324300800070 0.500 1.7820 2324300800071 0.525 2.2667 2324300800072 0.550 1.6639 2324300800073 0.575 1.8984 2324300800074 0.600 1.6086 2324300800075 0.625 1.1153 2324300800076 0.650 1.1384 2324300800077 0.675 1.0363 2324300800078 0.700 0.9421 2324300800079 0.725 1.1295 2324300800080 0.750 0.8162 2324300800081 0.775 0.7924 2324300800082 0.800 0.9017 2324300800083 0.825 0.8153 2324300800084 0.850 1.0418 2324300800085 0.875 0.9085 2324300800086 0.900 0.7986 2324300800087 0.925 0.8452 2324300800088 0.950 0.6649 2324300800089 0.975 0.6646 2324300800090 1.000 0.5860 2324300800091 1.025 0.4214 2324300800092 1.050 0.4915 2324300800093 1.075 0.4129 2324300800094 1.100 0.3030 2324300800095 1.125 0.3887 2324300800096 1.150 0.3414 2324300800097 1.175 0.3723 2324300800098 1.200 0.3251 2324300800099 ENDDATA 49 0 2324300800100 ENDSUBENT 99 0 2324300899999 SUBENT 23243009 20150520 22442324300900001 BIB 8 38 2324300900002 REACTION (92-U-235(N,F),DL/GRP,NU/DE,,REL) 2324300900003 Delayed neutron spectrum in arb.units for specific 2324300900004 group . 2324300900005 EN-SEC (E,N) Energy of delayed neutrons. 2324300900006 ANALYSIS Spectra for separate delayed-neutron periods were 2324300900007 calculated from the observed composite spectra and the 2324300900008 estimates of S-i of Hughes+ or Keepin+. 2324300900009 It was assumed that 4th and 5th periods have identical 2324300900010 spectra . Spectrum of period 4 contains about 10% of 2324300900011 contribution from period 5. 2324300900012 ASSUMED (ASSUM,(92-U-235(N,F),DL/GRP,NU)/(92-U-235(N,F),DL,NU))2324300900013 Relative intensity and HL (Table 1) were used from: 2324300900014 REL-REF (R,,G.R.Keepin,B,PR.NUC.EN.,1,1956) 2324300900015 ERR-ANALYS (E-ERR-DIG) Digitizing error of E ( X scale) 2324300900016 (ERR-DIG) Digitizing error of DATA ( Y scale) 2324300900017 Quantization errors: 2324300900018 scale X - 0.002 keV, scale Y - 0.008 arb.units. 2324300900019 (ERR-S) Approx. stat. error. 2324300900020 Other errors from causes: 2324300900021 (ERR-1) Correction for variation of wall effect and 2324300900022 He-3(n,p)H-3 cross-section - 6%. 2324300900023 (ERR-2,,10.) Error due to He-3 recoil from neutrons of 2324300900024 energies > 1 MeV; 10% maximal at zero neutron energy, 2324300900025 become negligible at 100 keV. 2324300900026 (ERR-3,,5.) Error due to effect of neutron scattering 2324300900027 was estimated by 2 additional measurements. 2324300900028 Errors arising from uncertainties in the data 2324300900029 on half-lives and neutron intensities ( Table 1) were 2324300900030 estimated from two sets of exp.points on Fig.4. to be 2324300900031 about equal or less than stat.error. 2324300900032 (ERR-SYS,6.,15.) Total systematic error is about 2324300900033 +6, -15 % at zero energy, varying slowly to about 2324300900034 +-8% at 1 MeV. 2324300900035 E-RSL-FW -Energy resolution FWHM,digitized from Fig.4a 2324300900036 COMMENT Of compiler. On Fig.4d there is an point ( E=0.575 MeV,2324300900037 data 2.2427 arb.units), which looks like duplicative a2324300900038 this E; it was not inserted in DATA block. 2324300900039 STATUS (CURVE) Fig.4d of J,JNE,3,7,1956. 2324300900040 ENDBIB 38 0 2324300900041 COMMON 9 6 2324300900042 E-ERR-DIG ERR-DIG E-RSL-FW ERR-S GRP-NUM HL 2324300900043 HL-ERR ASSUM ASSUM-ERR 2324300900044 MEV ARB-UNITS MEV ARB-UNITS NO-DIM SEC 2324300900045 SEC NO-DIM NO-DIM 2324300900046 0.0027 0.0252 0.0891 0.4772 4. 2.18 2324300900047 0.07 0.409 0.022 2324300900048 ENDCOMMON 6 0 2324300900049 DATA 2 47 2324300900050 E DATA 2324300900051 MEV ARB-UNITS 2324300900052 0.050 2.9070 2324300900053 0.075 2.7502 2324300900054 0.100 2.7029 2324300900055 0.125 2.5851 2324300900056 0.150 3.7115 2324300900057 0.175 4.2981 2324300900058 0.200 3.6561 2324300900059 0.225 3.3584 2324300900060 0.250 3.2486 2324300900061 0.275 3.1153 2324300900062 0.300 2.8254 2324300900063 0.325 2.6685 2324300900064 0.350 2.3396 2324300900065 0.375 2.2219 2324300900066 0.400 2.2685 2324300900067 0.425 2.4481 2324300900068 0.450 2.6512 2324300900069 0.475 2.2675 2324300900070 0.500 2.3532 2324300900071 0.525 2.7519 2324300900072 0.550 2.0161 2324300900073 0.575 2.3366 2324300900074 0.600 2.0624 2324300900075 0.625 1.6160 2324300900076 0.650 1.5609 2324300900077 0.675 1.4432 2324300900078 0.700 1.3490 2324300900079 0.725 1.5129 2324300900080 0.750 1.1449 2324300900081 0.775 1.0898 2324300900082 0.800 1.1442 2324300900083 0.825 1.0891 2324300900084 0.850 1.2218 2324300900085 0.875 1.1041 2324300900086 0.900 0.9629 2324300900087 0.925 0.9782 2324300900088 0.950 0.8213 2324300900089 0.975 0.8288 2324300900090 1.000 0.7425 2324300900091 1.025 0.6170 2324300900092 1.050 0.6244 2324300900093 1.075 0.5381 2324300900094 1.100 0.6003 2324300900095 1.125 0.4747 2324300900096 1.150 0.4509 2324300900097 1.175 0.4506 2324300900098 1.200 0.3799 2324300900099 ENDDATA 49 0 2324300900100 ENDSUBENT 99 0 2324300999999 SUBENT 23243010 20150520 22442324301000001 BIB 4 16 2324301000002 REACTION (92-U-235(N,F),DL/GRP,KE) 2324301000003 Mean neutron energy of delayed neutron spectra for 2324301000004 specific groups . 2324301000005 Data are compared with the rather rough estimates from:2324301000006 REL-REF (A,,D.J.Hughes+,J,PR,73,111,1948) 2324301000007 (D,,M.Burgy+,R,MDDC-16,1946) 2324301000008 ERR-ANALYS (DATA-ERR) Not specified. 2324301000009 STATUS (TABLE) Table 4 of J,JNE,3,7,1956. 2324301000010 (DEP,23243002) Group 1 spectra 2324301000011 (DEP,23243003) Group 1 spectra 2324301000012 (DEP,23243004) Group 2 spectra 2324301000013 (DEP,23243005) Group 2 spectra 2324301000014 (DEP,23243006) Group 3 spectra 2324301000015 (DEP,23243007) Group 3 spectra 2324301000016 (DEP,23243008) Group 4 spectra 2324301000017 (DEP,23243009) Group 4 spectra 2324301000018 ENDBIB 16 0 2324301000019 NOCOMMON 0 0 2324301000020 DATA 3 4 2324301000021 GRP-NUM DATA DATA-ERR 2324301000022 NO-DIM KEV KEV 2324301000023 1. 250. 20. 2324301000024 2. 460. 10. 2324301000025 3. 405. 20. 2324301000026 4. 450. 20. 2324301000027 ENDDATA 6 0 2324301000028 ENDSUBENT 27 0 2324301099999 ENDENTRY 10 0 2324399999999