ENTRY 21902 19840926 00002190200000001 SUBENT 21902001 19840926 00002190200100001 BIB 16 44 2190200100002 INSTITUTE (3BZLUFP) J.L.BF 2190200100003 (2GERKIG) H.-U.F EXPERIMENTAL SITE. 2190200100004 REFERENCE (R,GKSS-82-E-8,82) 2190200100005 AUTHOR (J.L.BARREIRA FILHO,H.-U.FANGER) 2190200100006 TITLE -MEASUREMENTS OF NEUTRON ACTIVATION CROSS SECTIONS AT 2190200100007 14.4 MEV FOR ZN-68 AND ZR-90- 2190200100008 FACILITY .NEUTRON GENERATOR IN A FACILITY CALLED 'KORONA', 2190200100009 KOMBINIERTE ROHRPOST-NEUTRONENGENERATOR-ANLAGE, 2190200100010 DESCRIBED IN GKSS-81-E-53. 2190200100011 INC-SOURCE (D-T ) THE NEUTRON FLUX AT THE IRRADIATION POSITION 2190200100012 WAS ESTIMATED TO BE 5*10E+10 N/CM-SQ*SEC. 2190200100013 SAMPLE .THE SAMPLES WERE PREPARED FROM POWDER OXIDE,99.0 PER 2190200100014 CENT PURITY. THE IRRADIATION CAPSULES WERE MADE OF 2190200100015 POLYETHYLENE WITH A DIAMETER OF 1.40 CM AND A HEIGHT 2190200100016 OF 0.90 CM. 2190200100017 METHOD (ACTIV) ACTIVATION OF THE SAMPLES WHICH AFTER THE 2190200100018 IRRADIATION WERE TRANSPORTED FROM THE INTERIOR OF THE 2190200100019 OF THE NEUTRON TUBE TO A 16 M DISTANT DETECTOR WITH A 2190200100020 PNEUMATIC RABBIT SYSTEM. FOR PRODUCTS WITH SHORT HALF-2190200100021 LIVES SO CALLED CYCLIC ACTIVATION WAS USED. 2190200100022 DETECTOR (GELI ) GELI DETECTOR. 2190200100023 ANALYSIS .THE EFFICIENCY OF THE DETECTION SYSTEM WAS MADE WITH A2190200100024 STANDARD RADIOACTIV SOLUTION IN A SAMPLE CAPSULE. 2190200100025 MONITOR .THE NEUTRON FLUX WAS MONITORED BY MEANS OF A BF3 TUBE 2190200100026 IN A LONG COUNTER WHICH WAS CALIBRATED WITH THE REACT.2190200100027 (13-AL-27(N,A)11-NA-24,,SIG) 2190200100028 DECAY-MON (11-NA-24,15.02HR,DG,1368.63,1.000,DG,2754.10,.999) 2190200100029 STATUS .DATA TAKEN FROM MAIN REFERENCE. 2190200100030 HISTORY (840511C) A.L. 2190200100031 (840710E) 2190200100032 CORRECTION .RECORDED GAMMA SPECTRA WERE CORRECTED FOR COINCIDENCE 2190200100033 SUMMING OF CASCADING PHOTONS. THE CORRECTIONS WERE OF 2190200100034 THE ORDER OF 6 PER CENT BUT COULD SOMETIMES BE AS HIGH2190200100035 AS 30 PER CENT AS FOR THE 111 KEV PEAK OF CU-68-M. 2190200100036 ERR-ANALYS (DATA-ERR) TOTAL ERROR UNDER MOST ADVERS CONDITIONS, 2190200100037 BEING A SUM OF 2190200100038 (DATA-ERR1) ERROR IN FLUX DETERMINATION 2190200100039 (DATA-ERR2) ERROR IN GAMMA-RAY YIELD COMPRISING 2190200100040 STATISTICAL AND SYSTEMATIC ERRORS AS WELL 2190200100041 AS UNCERTAINTIES IN GEOMETRY FACTORS, 2190200100042 EFFICIENCIES AND GAMMA-TRANSITION 2190200100043 PROBABILITIES. FOR THE SPECIAL CASE OF 2190200100044 CU-68-G THIS ERROR WAS ABOUT 13 PER CENT. 2190200100045 (DATA-ERR3) ERROR IN COINCIDENCE SUMMING CORRECTIONS 2190200100046 ENDBIB 44 0 2190200100047 COMMON 7 6 2190200100048 EN EN-ERR MONIT MONIT-ERR DATA-ERR1 DATA-ERR2 2190200100049 DATA-ERR3 2190200100050 MEV MEV MB MB PER-CENT PER-CENT 2190200100051 PER-CENT 2190200100052 1.4400E+01 3.0000E-01 1.1700E+02 8.0000E-01 5.0000E+00 8.0000E+002190200100053 2.0000E+00 2190200100054 ENDCOMMON 6 0 2190200100055 ENDSUBENT 54 0 2190200199999 SUBENT 21902002 19840710 00002190200200001 BIB 4 5 2190200200002 REACTION (30-ZN-68(N,A)28-NI-65,,SIG) 2190200200003 DECAY-DATA (28-NI-65,2.52HR,DG,366.27,.046,DG,1481.80,.235) 2190200200004 STATUS .DATA TAKEN FROM MAIN REFERENCE. 2190200200005 HISTORY (840511C) A.L. 2190200200006 (840710E) 2190200200007 ENDBIB 5 0 2190200200008 NOCOMMON 0 0 2190200200009 DATA 2 1 2190200200010 DATA DATA-ERR 2190200200011 MB MB 2190200200012 1.0300E+01 1.8000E+00 2190200200013 ENDDATA 3 0 2190200200014 ENDSUBENT 13 0 2190200299999 SUBENT 21902003 19840710 00002190200300001 BIB 4 5 2190200300002 REACTION (30-ZN-68(N,P)29-CU-68-G,,SIG) 2190200300003 DECAY-DATA (29-CU-68,30.5SEC,DG,1077.40,.641) 2190200300004 STATUS .DATA TAKEN FROM MAIN REFERENCE. 2190200300005 HISTORY (840511C) A.L. 2190200300006 (840710E) 2190200300007 ENDBIB 5 0 2190200300008 NOCOMMON 0 0 2190200300009 DATA 2 1 2190200300010 DATA DATA-ERR 2190200300011 MB MB 2190200300012 5.0000E+00 1.1000E+00 2190200300013 ENDDATA 3 0 2190200300014 ENDSUBENT 13 0 2190200399999 SUBENT 21902004 19840710 00002190200400001 BIB 4 6 2190200400002 REACTION (30-ZN-68(N,P)29-CU-68-M,,SIG) 2190200400003 DECAY-DATA (29-CU-68-M,3.79MIN,DG,84.30,.723,DG,111.20,.167, 2190200400004 DG,525.90,.750,DG,1077.40,1.000) 2190200400005 STATUS .DATA TAKEN FROM MAIN REFERENCE. 2190200400006 HISTORY (840511C) A.L. 2190200400007 (840710E) 2190200400008 ENDBIB 6 0 2190200400009 NOCOMMON 0 0 2190200400010 DATA 2 1 2190200400011 DATA DATA-ERR 2190200400012 MB MB 2190200400013 3.6000E+00 6.0000E-01 2190200400014 ENDDATA 3 0 2190200400015 ENDSUBENT 14 0 2190200499999 SUBENT 21902005 19840710 00002190200500001 BIB 4 5 2190200500002 REACTION (40-ZR-90(N,A)38-SR-87-M,,SIG) 2190200500003 DECAY-DATA (38-SR-87-M,2.81HR,DG,388.40,.820) 2190200500004 STATUS .DATA TAKEN FROM MAIN REFERENCE. 2190200500005 HISTORY (840511C) A.L. 2190200500006 (840710E) 2190200500007 ENDBIB 5 0 2190200500008 NOCOMMON 0 0 2190200500009 DATA 2 1 2190200500010 DATA DATA-ERR 2190200500011 MB MB 2190200500012 3.2000E+00 5.0000E-01 2190200500013 ENDDATA 3 0 2190200500014 ENDSUBENT 13 0 2190200599999 SUBENT 21902006 19840710 00002190200600001 BIB 4 5 2190200600002 REACTION (40-ZR-90(N,P)39-Y-90-M,,SIG) 2190200600003 DECAY-DATA (39-Y-90-M,3.19HR,DG,202.52,.970,DG,479.52,.906) 2190200600004 STATUS .DATA TAKEN FROM MAIN REFERENCE. 2190200600005 HISTORY (840511C) A.L. 2190200600006 (840710E) 2190200600007 ENDBIB 5 0 2190200600008 NOCOMMON 0 0 2190200600009 DATA 2 1 2190200600010 DATA DATA-ERR 2190200600011 MB MB 2190200600012 9.8000E+00 1.7000E+00 2190200600013 ENDDATA 3 0 2190200600014 ENDSUBENT 13 0 2190200699999 SUBENT 21902007 19840710 00002190200700001 BIB 4 5 2190200700002 REACTION (40-ZR-90(N,2N)40-ZR-89-M,,SIG) 2190200700003 DECAY-DATA (40-ZR-89-M,4.18MIN,DG,587.80,.895) 2190200700004 STATUS .DATA TAKEN FROM MAIN REFERENCE. 2190200700005 HISTORY (840511C) A.L. 2190200700006 (840710E) 2190200700007 ENDBIB 5 0 2190200700008 NOCOMMON 0 0 2190200700009 DATA 2 1 2190200700010 DATA DATA-ERR 2190200700011 MB MB 2190200700012 7.5000E+01 1.2000E+01 2190200700013 ENDDATA 3 0 2190200700014 ENDSUBENT 13 0 2190200799999 ENDENTRY 7 0 2190299999999