ENTRY 20619 20200801 22902061900000001 SUBENT 20619001 20200801 22902061900100001 BIB 17 57 2061900100002 TITLE Measurements of cross sections for threshold 2061900100003 reactions induced by californium-252 spontaneous 2061900100004 fission neutrons 2061900100005 AUTHOR (W.G.Alberts,J.Bortfeldt,E.Gunther,K.Knauf,M.Matzke, 2061900100006 G.Rassi,V.Siegel,K.F.Walz,W.Mannhart) 2061900100007 REFERENCE (C,75WASH,1,273,1975) 2061900100008 (J,NSE,69,333,1979) reanalysis, updated values 2061900100009 first author W.Mannhart 2061900100010 (R,EUR-5667,(2),131,1977) Review of measurements. 2061900100011 (R,PTB-FMRB-72,1978) Summary of recent data. 2061900100012 (R,PTB-FMRB-60,1975) Data and comparison with eval. 2061900100013 (J,NSE,55,243,1974) Preliminary results 2061900100014 Experimental device described. 2061900100015 INSTITUTE (2GERPTB) 2061900100016 FACILITY .Open air low-scattering facility 2061900100017 .ceramic tablets containing the Cf-252 completely 2061900100018 enclosed by sample 2061900100019 INC-SOURCE (CF252) Spontaneous fission source of Cf-252. 2061900100020 INC-SPECT .Fission spectrum of Cf-252. 2061900100021 .source strength measured by authors yielding an 2061900100022 intensity of (2.91+-0.05) x 10**9/sec at 01.01.1973. 2061900100023 and half life of 970.5 days. Details in 2061900100024 Bortfeid,J.,Matzke,M.,PTB-Mitteilungen 84(1974),254. 2061900100025 METHOD (ACTIV) Activation. 2061900100026 DETECTOR (GELI ) Ge-Li detector,30 cm**3 volume 2061900100027 (NAICR) Na-I(Tl) detector 7.6 x 7.6 cm**2 2061900100028 ANALYSIS .Effective thickness of sample determined by 2061900100029 Monte Carlo method restricted to monoenergetic 2061900100030 first collision approximation 2061900100031 MONITOR .Absolutely calibrated Ge-Li detector, 2061900100032 uncertainty of 1%, see PTB-MITT,83,307,1973. 2061900100033 COMMENT .Continuation of earlier experiment after 2061900100034 recalibration of strength of Cf source and others 2061900100035 reevaluations. 2061900100036 ADD-RES (COMP).Comparison with similar data and ENDF/B4 and 5 2061900100037 STATUS (TABLE) Table 3 of Nucl.Sci.Eng.,69(1979)333 2061900100038 CORRECTION . Self-shielding effects in sample, counting 2061900100039 losses due to dead time and pileup. 2061900100040 .Influence of delayed neutrons neglected. 2061900100041 ERR-ANALYS (ERR-T) Total error includes: 2061900100042 Quadratic summation of the statistical and 2061900100043 estimated systematic uncertainty 2061900100044 .systematic contributions includes uncertainties 2061900100045 due to chemical handling and weighting, half-life 2061900100046 of residual nuclide, Monte Carlo neutron mean path 2061900100047 calculation; 2061900100048 (ERR-S) Statistical error on the activity measurement. 2061900100049 HISTORY (19760628C) 2061900100050 (19801017A) final data published. Subent 20619010 2061900100051 deleted, duplication with 21003.004 2061900100052 (20101107A) SD:Updated to new date formats, lower case.2061900100053 corrected according to last EXFOR rules and Dict. 2061900100054 Subent 20619010 deleted, according to HISTORY (see 2061900100055 19801017A). HISTORY deleted from Subents - identical 2061900100056 with HISTORY in Subent 001. 2061900100057 (20200801U) SD: Refs on reports or abstracts without 2061900100058 additional info deleted. EN-DUMMY -> KT-DUMMY. 2061900100059 ENDBIB 57 0 2061900100060 COMMON 1 3 2061900100061 KT-DUMMY 2061900100062 MEV 2061900100063 1.42 2061900100064 ENDCOMMON 3 0 2061900100065 ENDSUBENT 64 0 2061900199999 SUBENT 20619002 20101107 22252061900200001 BIB 5 6 2061900200002 REACTION (13-AL-27(N,A)11-NA-24,,SIG,,FIS) Cf252 avg. 2061900200003 SAMPLE .15 Samples of Al-27,density 2.698 g/cm**3. 2061900200004 DECAY-DATA (11-NA-24,15.00HR,DG) 2061900200005 REL-REF (R,,R.G.Helmer+,J,NT,21,258,1975) decay-data taken from2061900200006 Helmer and Greenwood Nucl.Techn.25(1975)258 2061900200007 STATUS (TABLE) Table 3 on p.336 of NSE,69,333,1979 2061900200008 ENDBIB 6 0 2061900200009 NOCOMMON 0 0 2061900200010 DATA 3 1 2061900200011 DATA ERR-T ERR-S 2061900200012 MB MB PER-CENT 2061900200013 1.0060E+00 2.2000E-02 4.0000E-01 2061900200014 ENDDATA 3 0 2061900200015 ENDSUBENT 14 0 2061900299999 SUBENT 20619003 20101107 22252061900300001 BIB 5 7 2061900300002 REACTION (22-TI-46(N,P)21-SC-46-G,,SIG,,FIS) Cf252 avg. 2061900300003 SAMPLE .6 Samples of Ti,density 4.505 g/cm**3 2061900300004 isotopic content of Ti-46 8.0%. 2061900300005 DECAY-DATA (21-SC-46-G,83.69D,DG) Taken from Bambynek et al. 2061900300006 EANDC(E) 150 U (1972) 144. 2061900300007 REL-REF (R,,W.Bambynek+,P,EANDC(E)-150U,144,1975) 2061900300008 STATUS (TABLE) Table 3 on p.336 of NSE,69,333,1979 2061900300009 ENDBIB 7 0 2061900300010 NOCOMMON 0 0 2061900300011 DATA 3 1 2061900300012 DATA ERR-T ERR-S 2061900300013 MB MB PER-CENT 2061900300014 1.3800E+01 3.0000E-01 8.0000E-01 2061900300015 ENDDATA 3 0 2061900300016 ENDSUBENT 15 0 2061900399999 SUBENT 20619004 20101107 22252061900400001 BIB 5 9 2061900400002 REACTION (22-TI-47(N,P)21-SC-47,,SIG,,FIS) Cf252 avg. 2061900400003 SAMPLE .3 Samples of Ti,density 4.505 g/cm**3 2061900400004 isotopic content of Ti-47 7.5%. 2061900400005 DECAY-DATA (21-SC-47,3.351D,DG) Measured in a 4-Pi-gamma- 2061900400006 ionization chamber and with a proportional 2061900400007 counter. Details in Walz,K.F. and Weiss,H.M. 2061900400008 Z.Naturforschung 25a (1970) 921. 2061900400009 REL-REF (R,,K.F.Walz+,J,ZN/A,25,921,1970) 2061900400010 STATUS (TABLE) Table 3 on p.336 of NSE,69,333,1979 2061900400011 ENDBIB 9 0 2061900400012 NOCOMMON 0 0 2061900400013 DATA 3 1 2061900400014 DATA ERR-T ERR-S 2061900400015 MB MB PER-CENT 2061900400016 1.8900E+01 4.0000E-01 7.0000E-01 2061900400017 ENDDATA 3 0 2061900400018 ENDSUBENT 17 0 2061900499999 SUBENT 20619005 20101107 22252061900500001 BIB 5 7 2061900500002 REACTION (22-TI-48(N,P)21-SC-48,,SIG,,FIS) Cf252 avg. 2061900500003 SAMPLE .7 Samples of Ti,density 4.505 g/cm**3 2061900500004 isotopic content of Ti-48 73.7% 2061900500005 DECAY-DATA (21-SC-48,43.8HR,DG) 2061900500006 REL-REF (R,,R.G.Helmer+,J,NT,21,258,1975) decay-data taken from2061900500007 Helmer and Greenwood Nucl.Techn.25(1975)258 2061900500008 STATUS (TABLE) Table 3 on p.336 of NSE,69,333,1979 2061900500009 ENDBIB 7 0 2061900500010 NOCOMMON 0 0 2061900500011 DATA 3 1 2061900500012 DATA ERR-T ERR-S 2061900500013 MB MB PER-CENT 2061900500014 4.2000E-01 1.0000E-02 1.3000E+00 2061900500015 ENDDATA 3 0 2061900500016 ENDSUBENT 15 0 2061900599999 SUBENT 20619006 20101107 22252061900600001 BIB 5 7 2061900600002 REACTION (26-FE-54(N,P)25-MN-54,,SIG,,FIS) Cf 252 avg. 2061900600003 SAMPLE .12 Samples of Fe,density 7.87 g/cm**3 2061900600004 isotopic content of Fe-54 5.8% 2061900600005 DECAY-DATA (25-MN-54,312.6D,DG) 2061900600006 REL-REF (R,,R.G.Helmer+,J,NT,21,258,1975) decay-data taken from2061900600007 Helmer and Greenwood Nucl.Techn.25(1975)258 2061900600008 STATUS (TABLE) Table 3 on p.336 of NSE,69,333,1979 2061900600009 ENDBIB 7 0 2061900600010 NOCOMMON 0 0 2061900600011 DATA 3 1 2061900600012 DATA ERR-T ERR-S 2061900600013 MB MB PER-CENT 2061900600014 8.4600E+01 2.0000E+00 6.0000E-01 2061900600015 ENDDATA 3 0 2061900600016 ENDSUBENT 15 0 2061900699999 SUBENT 20619007 20101107 22252061900700001 BIB 5 7 2061900700002 REACTION (26-FE-56(N,P)25-MN-56,,SIG,,FIS) Cf252 avg. 2061900700003 SAMPLE .10 Samples of Fe ,density 7.87g/cm**3 2061900700004 isotopic content of Fe-56 91.7% 2061900700005 DECAY-DATA (25-MN-56,2.5785HR,DG) Taken from Lagoutine, Legrand, 2061900700006 Nucl.Instr.Meth. 112 (1973) 323. 2061900700007 REL-REF (R,,F.Lagoutine+,J,NIM,112,323,1973) 2061900700008 STATUS (TABLE) Table 3 on p.336 of NSE,69,333,1979 2061900700009 ENDBIB 7 0 2061900700010 NOCOMMON 0 0 2061900700011 DATA 3 1 2061900700012 DATA ERR-T ERR-S 2061900700013 MB MB PER-CENT 2061900700014 1.4500E+00 3.5000E-02 7.0000E-01 2061900700015 ENDDATA 3 0 2061900700016 ENDSUBENT 15 0 2061900799999 SUBENT 20619008 20101107 22252061900800001 BIB 5 8 2061900800002 REACTION (28-NI-58(N,P)27-CO-58,,SIG,,FIS) Cf252 avg. 2061900800003 SAMPLE .6 Samples of Ni, 2061900800004 isotopic content of Ni-58 67.76% 2061900800005 DECAY-DATA (27-CO-58,70.78D,DG) 2061900800006 Taken from Bambynek, Legrand, 2061900800007 Atom.Energ.Rev. 11 (1973) 524. 2061900800008 REL-REF (R,,W.Bambynek+,J,REA,11,524,1973) 2061900800009 STATUS (TABLE) Table 3 on p.336 of NSE,69,333,1979 2061900800010 ENDBIB 8 0 2061900800011 NOCOMMON 0 0 2061900800012 DATA 3 1 2061900800013 DATA ERR-T ERR-S 2061900800014 MB MB PER-CENT 2061900800015 1.1800E+02 3.0000E+00 3.0000E-01 2061900800016 ENDDATA 3 0 2061900800017 ENDSUBENT 16 0 2061900899999 SUBENT 20619009 20101107 22252061900900001 BIB 5 7 2061900900002 REACTION (30-ZN-64(N,P)29-CU-64,,SIG,,FIS) Cf252 avg. 2061900900003 SAMPLE .9 Samples of Zn, 2061900900004 isotopic content of Zn-64 48.9% 2061900900005 DECAY-DATA (29-CU-64,12.701HR,DG) 2061900900006 REL-REF (R,,R.G.Helmer+,J,NT,21,258,1975) decay-data taken from2061900900007 Helmer and Greenwood Nucl.Techn.25(1975)258 2061900900008 STATUS (TABLE) Table 3 on p.336 of NSE,69,333,1979 2061900900009 ENDBIB 7 0 2061900900010 NOCOMMON 0 0 2061900900011 DATA 3 1 2061900900012 DATA ERR-T ERR-S 2061900900013 MB MB PER-CENT 2061900900014 3.9400E+01 1.0000E+00 9.0000E-01 2061900900015 ENDDATA 3 0 2061900900016 ENDSUBENT 15 0 2061900999999 NOSUBENT 20619010 20101107 22252061901000001 ENDENTRY 10 0 2061999999999