ENTRY 31854 20220822 32083185400000001 SUBENT 31854001 20220822 32083185400100001 BIB 9 23 3185400100002 TITLE Analysis of experimental data on the high-energy end 3185400100003 of the 252Cf spontaneous-fission neutron spectrum 3185400100004 AUTHOR (H.Maerten, D.Richter, D.Seeliger) 3185400100005 INSTITUTE (3DDRTUD) 3185400100006 REFERENCE (R,INDC(GDR)-28,1984) 3185400100007 (S,INDC(NDS)-146,195,1983) Prelim. spectrum in fig. 3185400100008 (S,INDC(GDR)-26,122,1982) Prelim. spectrum in fig. 3185400100009 (R,INDC(GDR)-17,1982) Prelim. spectrum in table 3185400100010 (C,82ANTWER,,488,1982) Prelim. spectrum in fig. 3185400100011 REL-REF (A,30969001,H.Maerten+,J,NSE,106,353,1990) 3185400100012 Later experiment by the same authors with flight 3185400100013 path length of 5.905 and 3.275 m 3185400100014 SAMPLE 3.4E+4 fissions/sec with Ta backing (0.125 mm thick), 3185400100015 5 mm source diameter 3185400100016 DETECTOR (FISCH) 1.5 at methane for stop signal, 3185400100017 fragment detection efficiency of 0.858+/-0.010 3185400100018 (SCIN) NE213 (5''x5'') 3185400100019 METHOD Two-dimensional measurement of TOF and scintillator 3185400100020 response (light output) 3185400100021 (TOF) flight path of 4.500 m, 2.372(7) nsec bin width, 3185400100022 time resolution of 2.074(118) nsec (FWHM) with regard 3185400100023 to gamma-peak 3185400100024 HISTORY (20220822C) On+LV 3185400100025 ENDBIB 23 0 3185400100026 NOCOMMON 0 0 3185400100027 ENDSUBENT 26 0 3185400199999 SUBENT 31854002 20220822 32083185400200001 BIB 4 19 3185400200002 REACTION (98-CF-252(0,F),PR,NU/DE,,REL) 3185400200003 CORRECTION The following corrections are taken into account: 3185400200004 - gamma peak correction (negligible) 3185400200005 - neutron transmission correction 3185400200006 - TOF channel dependent background due to 3185400200007 non-correlated stop signals (negligible) 3185400200008 - scattered neutrons (negligible) 3185400200009 - unfolding correction due to time resolution (FT) 3185400200010 - bin-width correction (BW) 3185400200011 - fragment detection efficiency (EF) 3185400200012 ERR-ANALYS (ERR-T) Quadrature sum of 3185400200013 (ERR-S) statistics - ST 3185400200014 (ERR-1) bin width correction - BW 3185400200015 (ERR-2) energy scale - ES 3185400200016 (ERR-3) unfolding correction due to time resolution- FT3185400200017 (ERR-4) neutron transmission correction - TR 3185400200018 (ERR-5) light output bias - BT 3185400200019 (ERR-6) neutron detector efficiency 3185400200020 STATUS (TABLE) Table 1+2 of INDC(GDR)-28, 1984 3185400200021 ENDBIB 19 0 3185400200022 COMMON 1 3 3185400200023 ERR-4 3185400200024 PER-CENT 3185400200025 0.1 3185400200026 ENDCOMMON 3 0 3185400200027 DATA 9 16 3185400200028 E DATA ERR-T ERR-S ERR-1 ERR-2 3185400200029 ERR-3 ERR-5 ERR-6 3185400200030 MEV ARB-UNITS PER-CENT PER-CENT PER-CENT PER-CENT 3185400200031 PER-CENT PER-CENT PER-CENT 3185400200032 8.889 .3318E-02 6.1 1.7 0.1 0.5 3185400200033 0.1 3.0 5.0 3185400200034 9.292 .2455E-02 6.2 1.9 0.1 0.5 3185400200035 0.1 2.9 5.1 3185400200036 9.722 .1778E-02 6.3 2.2 0.1 0.5 3185400200037 0.1 2.8 5.2 3185400200038 10.184 .1325E-02 6.5 2.5 0.1 0.5 3185400200039 0.1 2.6 5.4 3185400200040 10.679 .9486E-03 6.8 3.0 0.1 0.5 3185400200041 0.2 2.5 5.5 3185400200042 11.211 .6887E-03 7.1 3.4 0.1 0.5 3185400200043 0.2 2.4 5.7 3185400200044 11.785 .4809E-03 7.4 3.9 0.1 0.5 3185400200045 0.2 2.1 5.9 3185400200046 12.404 .2969E-03 8.2 5.0 0.2 0.5 3185400200047 0.3 2.0 6.1 3185400200048 13.073 .1850E-03 9.0 6.2 0.2 0.6 3185400200049 0.3 1.8 6.3 3185400200050 13.799 .1213E-03 10.2 7.6 0.2 0.6 3185400200051 0.4 1.7 6.5 3185400200052 14.587 .6821E-04 11.3 8.9 0.3 0.6 3185400200053 0.5 1.6 6.8 3185400200054 15.445 .3648E-04 14.7 12.7 0.3 0.6 3185400200055 0.6 1.5 7.1 3185400200056 16.382 .2264E-04 17.3 15.6 0.4 0.6 3185400200057 0.7 1.3 7.4 3185400200058 17.408 .1322E-04 22.4 21. 0.5 0.6 3185400200059 0.9 1.2 7.7 3185400200060 18.534 .5552E-05 37. 36. 0.6 0.6 3185400200061 1.1 1.1 8.0 3185400200062 19.774 .1437E-05 88. 88. 0.7 0.7 3185400200063 1.4 1.0 8.4 3185400200064 ENDDATA 36 0 3185400200065 ENDSUBENT 64 0 3185400299999 SUBENT 31854003 20220822 32083185400300001 BIB 4 4 3185400300002 REACTION (98-CF-252(0,F),PR,NU/DE,,REL) 3185400300003 CORRECTION Correction is negligible above 20 MeV 3185400300004 ERR-ANALYS (DATA-ERR) 75% conf. level. No source information. 3185400300005 STATUS (TABLE) Table 3 of INDC(GDR)-28, 1984 3185400300006 ENDBIB 4 0 3185400300007 NOCOMMON 0 0 3185400300008 DATA 3 6 3185400300009 E DATA DATA-ERR 3185400300010 MEV ARB-UNITS ARB-UNITS 3185400300011 20.8 0.203E-05 0.154E-05 3185400300012 22.3 0.110E-05 0.080E-05 3185400300013 24.0 0.159E-05 0.100E-05 3185400300014 25.8 0.131E-05 0.120E-05 3185400300015 27.9 0.130E-05 0.120E-05 3185400300016 30.2 0.410E-06 0.940E-06 3185400300017 ENDDATA 8 0 3185400300018 ENDSUBENT 17 0 3185400399999 SUBENT 31854004 20220822 32083185400400001 BIB 4 4 3185400400002 REACTION (98-CF-252(0,F),PR,KEM) 3185400400003 ANALYSIS Fitting to Maxwellian between 9 to 20 MeV 3185400400004 ERR-ANALYS (DATA-ERR) Total error 3185400400005 STATUS (TABLE) Text (p.14) of INDC(GDR)-28, 1984 3185400400006 ENDBIB 4 0 3185400400007 NOCOMMON 0 0 3185400400008 DATA 2 1 3185400400009 DATA DATA-ERR 3185400400010 MEV MEV 3185400400011 1.374 0.020 3185400400012 ENDDATA 3 0 3185400400013 ENDSUBENT 12 0 3185400499999 ENDENTRY 4 0 3185499999999