ENTRY 30677 20090903 31403067700000001 SUBENT 30677001 20090903 31403067700100001 BIB 13 40 3067700100002 INSTITUTE (3HUNKFI) First author 3067700100003 (2BLGGHT) Last three authors 3067700100004 REFERENCE (J,JRN,81,(2),369,198402) 3067700100005 AUTHOR (A.Simonits,F.de Corte,L.Moens,J.Hoste) 3067700100006 TITLE Critical evaluation and experimental determination of 3067700100007 the nuclear activation and decay parameters for the 3067700100008 reactions Cr-50(n,gamma)Cr-51, Fe-58(n,gamma)Fe-59, 3067700100009 Ag-109(n,gamma)Ag-110-m 3067700100010 FACILITY (REAC,3HUNKFI) WWR-M thermal reactor of Central 3067700100011 Research Institute of Physics,Budapest and 3067700100012 (REAC,2BLGGHT) THETIS reactor of Institute for 3067700100013 Nuclear Science,Gent 3067700100014 METHOD (ACTIV) Activation method. 3067700100015 DETECTOR (GELI) 3067700100016 ANALYSIS Experimentally measured K0-factors and evaluated values3067700100017 for isotopic abundance and absolute gamma-intensities 3067700100018 were used for determination 2200 m/sec cross-sections. 3067700100019 Theoretical definition of K0 relative Au cross-section 3067700100020 is K0=m(Au)*t*S0*g/(m*t(Au)*S0(Au)*g(Au)),where 3067700100021 m-atomic weight,t-isotopic abundance,S0- 2200 m/sec3067700100022 (n,g) cross-section,g-absolute gamma-ray-intensity 3067700100023 Experimental K0 value is 3067700100024 K0=asp/asp(Au)*(F+q0(Au))/(F+q0)*Ep(Au)/Ep,where 3067700100025 asp-specific count rate,F-thermal (subcadmium) to 3067700100026 epithermal neutron flux ratio,q0-resonance integral3067700100027 to 2200 m/sec cross-section ratio corrected for 3067700100028 non-ideal epithermal flux distribution,Ep-full 3067700100029 energy peak detection efficiency.(Au) means 3067700100030 respective value for Au-197 standard 3067700100031 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 3067700100032 DECAY-MON (79-AU-198-G,2.6935D,DG,411.8,0.9556) The value of 3067700100033 the abundance of the observed gamma-radiation per 3067700100034 decay was taken from NBS Spec.Publ.626,1981 3067700100035 STATUS (TABLE) Data taken from J,JRN,81(1984)369 3067700100036 (APRVD) Approved by author.Received from Lajtai 2/12/863067700100037 HISTORY (19840614C) Compiled by VP 3067700100038 (19861208U) DG.-Author approval added.- 3067700100039 (20090725A) SD:Updated to new date formats,lower case. 3067700100040 ERR-ANALYS (DATA-ERR) Total error includes errors of measurement 3067700100041 and evaluated values used for analysis 3067700100042 ENDBIB 40 0 3067700100043 COMMON 3 3 3067700100044 EN MONIT MONIT-ERR 3067700100045 EV B B 3067700100046 2.5300E-02 9.8650E+01 8.0000E-02 3067700100047 ENDCOMMON 3 0 3067700100048 ENDSUBENT 47 0 3067700199999 SUBENT 30677002 20090903 31403067700200001 BIB 3 10 3067700200002 REACTION (24-CR-50(N,G)24-CR-51,,SIG) 3067700200003 SAMPLE For WWR-M measurements - Cr shots diss.in HNO3, 3067700200004 142. microgramme of Cr on Al-foil,pellet - 6.4 mm in 3067700200005 dia *0.2 mm 3067700200006 For THETIS measurements - Cr (diss.in HCl) on W41, 3067700200007 0.4 milligrammes,0.7 milligrammes, 1.milligrammes 3067700200008 Pellet - 12 mm dia * 3.mm 3067700200009 DECAY-DATA (24-CR-51,27.70D,DG,320.1,0.0985) Isotopic abundance 3067700200010 t=4.35% for Cr-50 was used for analysis, 3067700200011 m=52.00 was used 3067700200012 ENDBIB 10 0 3067700200013 NOCOMMON 0 0 3067700200014 DATA 2 1 3067700200015 DATA DATA-ERR 3067700200016 B B 3067700200017 1.5200E+01 2.0000E-01 3067700200018 ENDDATA 3 0 3067700200019 ENDSUBENT 18 0 3067700299999 SUBENT 30677003 20090903 31403067700300001 BIB 3 9 3067700300002 REACTION (26-FE-58(N,G)26-FE-59,,SIG) 3067700300003 SAMPLE For WWR-M measurements - Fe foil 100.microns, Fe wire 3067700300004 0.127 mm in dia, Fe foil 25 microns 3067700300005 For THETIS reactor - Fe foil 85.microns,70.milligrammes3067700300006 Fe2O3 in W41, pellet - 6.mm dia*1.5 mm 3067700300007 DECAY-DATA (26-FE-59,44.50D,DG,1099.2,0.561, 3067700300008 DG,1281.6,0.436) 3067700300009 Isotopic abundance t=0.280% for Fe-58 was used for 3067700300010 analysis, m=55.85 was used 3067700300011 ENDBIB 9 0 3067700300012 NOCOMMON 0 0 3067700300013 DATA 2 1 3067700300014 DATA DATA-ERR 3067700300015 B B 3067700300016 1.3100E+00 3.0000E-02 3067700300017 ENDDATA 3 0 3067700300018 ENDSUBENT 17 0 3067700399999 SUBENT 30677004 20090903 31403067700400001 BIB 3 25 3067700400002 REACTION (47-AG-109(N,G)47-AG-110-M,,SIG) 3067700400003 SAMPLE For WWR-M measurements - 11.microgrammes of Ag (diss. 3067700400004 in HNO3) on Al foil, pellet 6.4 mm dia * 0.2 mm, 3067700400005 Al (0.2+-0.004)% + Ag wire 1.mm in dia 3067700400006 For THETIS measurements - AgNO3 in H20 on W41, 3067700400007 3. milligr. or 6. milligr., pellet 10.mm dia*4.mm, 3067700400008 Ag in HNO3 on W41,0.4 milligrammes or 1.0 milligrammes,3067700400009 pellet 12.mm dia * 3.mm 3067700400010 DECAY-DATA (47-AG-110-M,249.7D,DG,446.8,0.0367, 3067700400011 DG,620.3,0.0278, 3067700400012 DG,657.7,0.944, 3067700400013 DG,677.6,0.109, 3067700400014 DG,687.0,0.0645, 3067700400015 DG,706.7,0.1660, 3067700400016 DG,744.3,0.0465, 3067700400017 DG,763.9,0.2226, 3067700400018 DG,818.0,0.0728, 3067700400019 DG,884.7,0.728, 3067700400020 DG,937.5,0.343, 3067700400021 DG,1384.3,0.2464, 3067700400022 DG,1475.8,0.0404, 3067700400023 DG,1505.0,0.1322, 3067700400024 DG,1562.3,0.0119) 3067700400025 Isotopic abundance value 48.16% and atomic mass value 3067700400026 m=107.87 were used for analysis 3067700400027 ENDBIB 25 0 3067700400028 NOCOMMON 0 0 3067700400029 DATA 2 1 3067700400030 DATA DATA-ERR 3067700400031 B B 3067700400032 3.8900E+00 5.0000E-02 3067700400033 ENDDATA 3 0 3067700400034 ENDSUBENT 33 0 3067700499999 ENDENTRY 4 0 3067799999999