ENTRY 31553 20070108 31223155300000001 SUBENT 31553001 20070108 31223155300100001 BIB 12 46 3155300100002 TITLE Determination of nuclear constants of reactions 3155300100003 induced on zinc by short irradiations with the 3155300100004 epithermal and fast components of a reactor 3155300100005 neutron spectrum 3155300100006 AUTHOR (I.M.Cohen,S.R.Guevara,M.A.Arribere, 3155300100007 M.C.Fornaciari Iljadica,A.J.Kestelman,R.A.Ohaco, 3155300100008 M.S.Segovia,A.N.Yunes) 3155300100009 INSTITUTE (3ARGCAB,3ARGCNE) 3155300100010 (3ARGARG)Universidad Tecnologica Nacional,Buenos Aires,3155300100011 Universidad Nacional de Cuyo, Rio Negro 3155300100012 REFERENCE (J,RCA,93,543,2005) 3155300100013 FACILITY (REAC,3ARGCAB) Ra-6 reactor at Centro Atom. Bariloche.3155300100014 METHOD (GSPEC,ACTIV) 3155300100015 INC-SPECT The mean values of the fast flux and the epithermal 3155300100016 flux per unit In E, as measured from the standard 3155300100017 reaction 27Al(n,p)27Mg and the reaction 68Zn(n,g)69mZn 3155300100018 which waas used as internal standard, were 1.7x10**12 3155300100019 and 8.4 x 10**10 n/cm2/s, respectively. 3155300100020 DETECTOR (HPGE) 67 cm3 ORTEC HPGe intrinsic-N coaxial detector 3155300100021 with a resolution of 2.0 keV FWHM and 12.3 % relative 3155300100022 efficiency. Data collection was performed in 4096 3155300100023 channels with a Ortec DSPec digital gamma-ray 3155300100024 spectrometer.Initial sets of measurements by high 3155300100025 resolution gamma-ray spectrometry of about 5 min 3155300100026 duration were performed, with 1-15 min decay; then, 3155300100027 after decay times of between 1 to 2 h, the samples were3155300100028 measured for 1 -3h. 3155300100029 SAMPLE Zinc foils with masses of about 70 mg and aiuminum 3155300100030 standards were irradiated for times between 3 and 3155300100031 20 min, under cadmium cover, using the pneumatic tube 3155300100032 facility of the reactor. 3155300100033 ERR-ANALYS (ERR-T) Total error. The systematic uncertainty 3155300100034 contribution to all cross-section measurements are: 3155300100035 * 2.8% corresponding to! the uncertainty of the 3155300100036 reference cross-section value, 3155300100037 * 2% to 3% to the absolute efficiency (depending on the3155300100038 energy and counting geometry), 3155300100039 * 1% to sample purity, and 3155300100040 * 1% to other contributions (sample and monitor 3155300100041 concentrations, nickel isotopic abundance, decay 3155300100042 constants, self-attenuation correction), amounting 3155300100043 to a total systematic uncertainty of 4.3% to 4.8%. 3155300100044 STATUS (TABLE) Data taken from of main reference. 3155300100045 (APRVD) Entry approved by Dr. I.M.Cohen 3155300100046 HISTORY (20051129C) SD 3155300100047 (20070108U) changed reaction code in sub.007 3155300100048 ENDBIB 46 0 3155300100049 COMMON 1 3 3155300100050 EN-DUMMY 3155300100051 MEV 3155300100052 1.5 3155300100053 ENDCOMMON 3 0 3155300100054 ENDSUBENT 53 0 3155300199999 SUBENT 31553002 20051129 31183155300200001 BIB 4 5 3155300200002 REACTION (30-ZN-64(N,P)29-CU-64,,SIG,,FIS) 3155300200003 DECAY-DATA (29-CU-64,12.700HR,DG,1345.77,0.00473) 3155300200004 MONITOR ((MONIT)13-AL-27(N,P)12-MG-27,,SIG) 3155300200005 MONIT-REF (,Arribere,J,JRN,244,417,2000) The cross section for 3155300200006 27Al(n,p)27Mg and some other relevant data can be found3155300200007 ENDBIB 5 0 3155300200008 COMMON 2 3 3155300200009 MONIT MONIT-ERR 3155300200010 MB MB 3155300200011 3.84 0.24 3155300200012 ENDCOMMON 3 0 3155300200013 DATA 2 1 3155300200014 DATA ERR-T 3155300200015 MB MB 3155300200016 37.4 1.4 3155300200017 ENDDATA 3 0 3155300200018 ENDSUBENT 17 0 3155300299999 SUBENT 31553003 20051129 31183155300300001 BIB 4 5 3155300300002 REACTION (30-ZN-64(N,2N)30-ZN-63,,SIG,,FIS) 3155300300003 DECAY-DATA (30-ZN-63,38.47MIN,DG,669.62,0.082) 3155300300004 MONITOR ((MONIT)13-AL-27(N,P)12-MG-27,,SIG) 3155300300005 MONIT-REF (,Arribere,J,JRN,244,417,2000) The cross section for 3155300300006 27Al(n,p)27Mg and some other relevant data can be found3155300300007 ENDBIB 5 0 3155300300008 COMMON 2 3 3155300300009 MONIT MONIT-ERR 3155300300010 MB MB 3155300300011 3.84 0.24 3155300300012 ENDCOMMON 3 0 3155300300013 DATA 2 1 3155300300014 DATA ERR-T 3155300300015 MICRO-B MICRO-B 3155300300016 23.4 2.0 3155300300017 ENDDATA 3 0 3155300300018 ENDSUBENT 17 0 3155300399999 SUBENT 31553004 20051129 31183155300400001 BIB 4 5 3155300400002 REACTION (30-ZN-66(N,P)29-CU-66,,SIG,,FIS) 3155300400003 DECAY-DATA (29-CU-66,5.12MIN,DG,1039.2,0.0923) 3155300400004 MONITOR ((MONIT)13-AL-27(N,P)12-MG-27,,SIG) 3155300400005 MONIT-REF (,Arribere,J,JRN,244,417,2000) The cross section for 3155300400006 27Al(n,p)27Mg and some other relevant data can be found3155300400007 ENDBIB 5 0 3155300400008 COMMON 2 3 3155300400009 MONIT MONIT-ERR 3155300400010 MB MB 3155300400011 3.84 0.24 3155300400012 ENDCOMMON 3 0 3155300400013 DATA 2 1 3155300400014 DATA ERR-T 3155300400015 MB MB 3155300400016 0.775 0.079 3155300400017 ENDDATA 3 0 3155300400018 ENDSUBENT 17 0 3155300499999 SUBENT 31553005 20051129 31183155300500001 BIB 4 5 3155300500002 REACTION (30-ZN-68(N,P)29-CU-68-M,,SIG,,FIS) 3155300500003 DECAY-DATA (29-CU-68-M,3.75MIN,DG,525.9,0.733) 3155300500004 MONITOR ((MONIT)13-AL-27(N,P)12-MG-27,,SIG) 3155300500005 MONIT-REF (,Arribere,J,JRN,244,417,2000) The cross section for 3155300500006 27Al(n,p)27Mg and some other relevant data can be found3155300500007 ENDBIB 5 0 3155300500008 COMMON 2 3 3155300500009 MONIT MONIT-ERR 3155300500010 MB MB 3155300500011 3.84 0.24 3155300500012 ENDCOMMON 3 0 3155300500013 DATA 2 1 3155300500014 DATA ERR-T 3155300500015 MICRO-B MICRO-B 3155300500016 5.32 0.65 3155300500017 ENDDATA 3 0 3155300500018 ENDSUBENT 17 0 3155300599999 SUBENT 31553006 20051129 31183155300600001 BIB 4 5 3155300600002 REACTION (30-ZN-68(N,A)28-NI-65,,SIG,,FIS) 3155300600003 DECAY-DATA (28-NI-65,2.5172HR,DG,1481.84,0.2359) 3155300600004 MONITOR ((MONIT)13-AL-27(N,P)12-MG-27,,SIG) 3155300600005 MONIT-REF (,Arribere,J,JRN,244,417,2000) The cross section for 3155300600006 27Al(n,p)27Mg and some other relevant data can be found3155300600007 ENDBIB 5 0 3155300600008 COMMON 2 3 3155300600009 MONIT MONIT-ERR 3155300600010 MB MB 3155300600011 3.84 0.24 3155300600012 ENDCOMMON 3 0 3155300600013 DATA 2 1 3155300600014 DATA ERR-T 3155300600015 MICRO-B MICRO-B 3155300600016 52.1 2.3 3155300600017 ENDDATA 3 0 3155300600018 ENDSUBENT 17 0 3155300699999 SUBENT 31553007 20070108 31223155300700001 BIB 4 7 3155300700002 REACTION (30-ZN-70(N,G)30-ZN-71-G,,RI) 3155300700003 DECAY-DATA (30-ZN-71,2.45MIN,DG,121.52,0.0298,DG,390.0,0.0384, 3155300700004 DG,910.3,0.0784) 3155300700005 MONITOR ((MONIT)30-ZN-68(N,G)30-ZN-69-M,,RI) 3155300700006 MONIT-REF (,Gryntakis,R,IAEA/TA-273,199,1987) the resonance 3155300700007 integral of the 68Zn(n,g)69mZn reaction was extracted 3155300700008 from the compilation of Gryntakis et.al. 3155300700009 ENDBIB 7 0 3155300700010 COMMON 2 3 3155300700011 MONIT MONIT-ERR 3155300700012 B B 3155300700013 0.18 0.03 3155300700014 ENDCOMMON 3 0 3155300700015 DATA 2 1 3155300700016 DATA ERR-T 3155300700017 B B 3155300700018 0.1350 0.0093 3155300700019 ENDDATA 3 0 3155300700020 ENDSUBENT 19 0 3155300799999 SUBENT 31553008 20051129 31183155300800001 BIB 4 7 3155300800002 REACTION (30-ZN-70(N,G)30-ZN-71-M,,RI) 3155300800003 DECAY-DATA (30-ZN-71-M,3.96HR,DG,121.48,0.0288,DG,389.87,0.026, 3155300800004 DG,910.1,0.00307) 3155300800005 MONITOR ((MONIT)30-ZN-68(N,G)30-ZN-69-M,,RI) 3155300800006 MONIT-REF (,Gryntakis,R,IAEA/TA-273,199,1987) the resonance 3155300800007 integral of the 68Zn(n,g)69mZn reaction was extracted 3155300800008 from the compilation of Gryntakis et.al. 3155300800009 ENDBIB 7 0 3155300800010 COMMON 2 3 3155300800011 MONIT MONIT-ERR 3155300800012 B B 3155300800013 0.18 0.03 3155300800014 ENDCOMMON 3 0 3155300800015 DATA 2 1 3155300800016 DATA ERR-T 3155300800017 B B 3155300800018 0.157 0.029 3155300800019 ENDDATA 3 0 3155300800020 ENDSUBENT 19 0 3155300899999 ENDENTRY 8 0 3155399999999