ENTRY 21648 20101114 22252164800000001 SUBENT 21648001 20101114 22252164800100001 BIB 16 53 2164800100002 INSTITUTE (2GERJUL) 2164800100003 REFERENCE (J,RCA,27,65,1980) 2164800100004 AUTHOR (R.Woelfle,S.M.Qaim) 2164800100005 TITLE -Measurement of fission neutron spectrum averaged 2164800100006 cross-sections of some (n,p), (n,n'p) and (n,alpha) 2164800100007 reactions on nickel and chromium. 2164800100008 FACILITY (REAC,2GERJUL) Light water (MERLIN) and 2164800100009 heavy water (DIDO) 2164800100010 INC-SOURCE (REAC) Fission neutrons from U-235(n,fiss). 2164800100011 INC-SPECT U-235 fission neutron spectrum. 2164800100012 SAMPLE .Sealed in quartz tube (diam. - 3-5 mm), surrounded by 2164800100013 neutron flux standards. The whole wrapped in aluminium2164800100014 foil and irradiated in the core. 2164800100015 Sample details- 2164800100016 0.6 gr Ni-powder, 99.999% purity, 10 hr typical irrad.2164800100017 .04 gr Ni-60 , 99.9% purity, 12 hr typical irrad.2164800100018 .01 gr Ni-61 , 99.9% purity, 3 hr typical irrad.2164800100019 1.5 gr Cr-granules, 99.999% purity, 10 hr typ. irrad. 2164800100020 METHOD (ACTIV) 2164800100021 (CHSEP) For soft radiation-emitters and low-yield 2164800100022 reaction products. 2164800100023 DETECTOR (GELI) Resolut. 1.90 keV at 1332 keV, coax. 32 cm2. 2164800100024 Ge detector used for Co-61 decay, ( 200 mm2, 2164800100025 resolution 300 eV at 14.4 keV and 522 eV at 122 keV, 2164800100026 with thin Be window. 2164800100027 Si(Li) detector used for X-rays from Fe-55 and V-49 2164800100028 decays, (30 mm2, resol. 170 eV at 5.9 keV) identif. 2164800100029 of charact. X- and gamma-ray peaks used as check 2164800100030 ANALYSIS .Use of K-factor concept of measuring spectrum deviat. 2164800100031 by selecting a set of flux standard reactions of 2164800100032 varying threshold energies. 2164800100033 COMMENT .For fast flux many threshold reactions were used 2164800100034 as monitors, see table 2 of RadioChim.Acta,27,65. 2164800100035 .for thermal flux measurements the Co-59(n,g) 2164800100036 cross section was used. 2164800100037 CORRECTION .Decay, gamma-ray branchings, fluorescence yield of 2164800100038 X-rays efficiency of detector, geometry of 2164800100039 counting, self absorption in source. 2164800100040 ERR-ANALYS (ERR-T) total errors in sig obtained by including 2164800100041 * statistical and 2164800100042 8 systematic errors. main sources are: 2164800100043 (ERR-1) .Detect. efficiency (3%), 2164800100044 (ERR-2) deviations of flux density ( 10%). 2164800100045 STATUS (TABLE) .Table 4 in RadioChim.Acta,27,65. 2164800100046 HISTORY (19800822C) 2164800100047 (19800829E) 2164800100048 (19801106A) MONIT deleted from COMMON section. 2164800100049 (19801124E) 2164800100050 (20101114A) SD:Updated to new date formats,lower case. 2164800100051 corrected according to last EXFOR rules and Dict. 2164800100052 Code SUM deleted from REACTION (Subent 004) 2164800100053 SF5=PAR from REACTION and Q-VAL from DATA col. 2164800100054 deleted from Subents 002-007 (activ.cross section)2164800100055 ENDBIB 53 0 2164800100056 COMMON 3 3 2164800100057 EN-DUMMY ERR-1 ERR-2 2164800100058 MEV PER-CENT PER-CENT 2164800100059 1.5000E+00 3.0 10. 2164800100060 ENDCOMMON 3 0 2164800100061 ENDSUBENT 60 0 2164800199999 SUBENT 21648002 20101114 22252164800200001 BIB 2 2 2164800200002 REACTION (28-NI-58(N,A)26-FE-55,,SIG,,FIS) 2164800200003 DECAY-DATA (26-FE-55,2.7YR,XR,5.9,.314) 2164800200004 ENDBIB 2 0 2164800200005 NOCOMMON 0 0 2164800200006 DATA 2 1 2164800200007 DATA ERR-T 2164800200008 MB MB 2164800200009 4.5200E+00 9.0000E-01 2164800200010 ENDDATA 3 0 2164800200011 ENDSUBENT 10 0 2164800299999 SUBENT 21648003 20101114 22252164800300001 BIB 2 2 2164800300002 REACTION (28-NI-62(N,A)26-FE-59,,SIG,,FIS) 2164800300003 DECAY-DATA (26-FE-59,44.6D,DG,1099.,.568,DG,1292.,.432) 2164800300004 ENDBIB 2 0 2164800300005 NOCOMMON 0 0 2164800300006 DATA 2 1 2164800300007 DATA ERR-T 2164800300008 MB MB 2164800300009 6.0000E-02 1.0000E-02 2164800300010 ENDDATA 3 0 2164800300011 ENDSUBENT 10 0 2164800399999 SUBENT 21648004 20101114 22252164800400001 BIB 2 2 2164800400002 REACTION (28-NI-60(N,P)27-CO-60,,SIG,,FIS) 2164800400003 DECAY-DATA (27-CO-60-G,5.263YR,DG,1173.,.999,DG,1332.,1.0) 2164800400004 ENDBIB 2 0 2164800400005 NOCOMMON 0 0 2164800400006 DATA 2 1 2164800400007 DATA ERR-T 2164800400008 MB MB 2164800400009 2.5700E+00 3.0000E-01 2164800400010 ENDDATA 3 0 2164800400011 ENDSUBENT 10 0 2164800499999 SUBENT 21648005 20101114 22252164800500001 BIB 2 2 2164800500002 REACTION (28-NI-61(N,P)27-CO-61,,SIG,,FIS) 2164800500003 DECAY-DATA (27-CO-61,1.65HR,DG,67.4,.86) 2164800500004 ENDBIB 2 0 2164800500005 NOCOMMON 0 0 2164800500006 DATA 2 1 2164800500007 DATA ERR-T 2164800500008 MB MB 2164800500009 1.1300E+00 1.5000E-01 2164800500010 ENDDATA 3 0 2164800500011 ENDSUBENT 10 0 2164800599999 SUBENT 21648006 20101114 22252164800600001 BIB 3 4 2164800600002 REACTION (28-NI-58(N,X)27-CO-57,,SIG,,FIS) 2164800600003 DECAY-DATA (27-CO-57,270.D,DG,122.1,.856,DG,136.4,.106) 2164800600004 HISTORY (20101129A) SD: REACTION code changed: instead of 2164800600005 sum of reactions, SF3 => X 2164800600006 ENDBIB 4 0 2164800600007 NOCOMMON 0 0 2164800600008 DATA 2 1 2164800600009 DATA ERR-T 2164800600010 MB MB 2164800600011 2.4000E-01 3.5000E-02 2164800600012 ENDDATA 3 0 2164800600013 ENDSUBENT 12 0 2164800699999 SUBENT 21648007 20101114 22252164800700001 BIB 3 4 2164800700002 REACTION (24-CR-50(N,X)23-V-49,,SIG,,FIS) 2164800700003 DECAY-DATA (23-V-49,330.D,XR,4.5,.219) 2164800700004 HISTORY (20101129A) SD: REACTION code changed: instead of 2164800700005 sum of reactions, SF3 => X 2164800700006 ENDBIB 4 0 2164800700007 NOCOMMON 0 0 2164800700008 DATA 2 1 2164800700009 DATA ERR-T 2164800700010 MB MB 2164800700011 1.2000E-01 2.0000E-02 2164800700012 ENDDATA 3 0 2164800700013 ENDSUBENT 12 0 2164800799999 ENDENTRY 7 0 2164899999999