ENTRY 32716 20140521 31643271600000001 SUBENT 32716001 20140521 31643271600100001 BIB 16 58 3271600100002 TITLE Excitation functions of neutrons induced reactions on 3271600100003 terbium from threshold to 20 MeV 3271600100004 AUTHOR (Junhua Luo,Li An,Li Jiang,Zhenlai Liu) 3271600100005 INSTITUTE (3CPRHXU,3CPRNPC) 3271600100006 REFERENCE (J,JRN,300,819,2014) 3271600100007 #doi:10.1007/s10967-014-3043-z 3271600100008 FACILITY (NGEN,3CPRNPC) K-400 neutron generator 3271600100009 SAMPLE About 9 gram of Tb2O3 powder of natural isotopic 3271600100010 composition (>99.99% pure) was pressed at 10 ton/cm2, 3271600100011 and a pellet, 0.2 cm thick and 2.0 cm in diameter was 3271600100012 obtained. The samples in each group were sandwiched 3271600100013 between two Nb or Al foils. 3271600100014 DETECTOR (HPGE) The crystal geometry is 70.1 x 72.3 mm in 3271600100015 diameter and length. The relative efficiency is about 3271600100016 68%, and energy resolution is 1.69 keV at 1332 keV 3271600100017 gamma ray from Co-60. 3271600100018 (SIBAR) The Au-Si surface barrier detector used in 3271600100019 135 degree accompanying alpha particle tube was at a 3271600100020 distance of 110 cm from the target. 3271600100021 METHOD (ACTIV) Irradiation of the samples was lasted about 3271600100022 13 hours with a yield around 2E10 to 3E10 n/s, and 3271600100023 cooled for around 5.5 to 78 hours. The groups of 3271600100024 samples were placed at 0deg., 90deg. or 135deg. 3271600100025 angles relative to the beam direction and centered 3271600100026 about the T-Mo target at distances of around 4 cm. 3271600100027 MONITOR ((MONIT1)41-NB-93(N,2N)41-NB-92-M,,SIG) 3271600100028 ((MONIT2)13-AL-27(N,A)11-NA-24,,SIG) 3271600100029 DECAY-MON ((MONIT1)41-NB-92-M,10.15D,DG,934.43,0.9907) 3271600100030 ((MONIT2)11-NA-24,14.959HR,DG,1368.6,1.00) 3271600100031 MONIT-REF (,M.Wagner+,B,PH-DAT,13-5,1990) The cross section of 3271600100032 monitor reaction was determined by interpolation of the3271600100033 evaluated values of the reference. 3271600100034 INC-SOURCE (D-T) An effective deuteron beam energy of 136 keV 3271600100035 and beam current of 280 uA were used to produce 3271600100036 neutrons. And the tritium-Molybdenum (T-Mo) target 3271600100037 used in the generator was 0.566 mg/cm2 thick, and 3271600100038 diameter of active zone is 1.2 cm. 3271600100039 ERR-ANALYS (ERR-T) Total uncertainty of cross section 3271600100040 (ERR-S,0.6,17.2) Counting statistics (0.6-17.2%) 3271600100041 (ERR-1,2.0,3.0) Detector efficiency (2.0-3.0%) 3271600100042 (ERR-2) Weight of samples (0.1%) 3271600100043 (ERR-3) Self-absorption of gamma-ray (~0.5%) 3271600100044 (ERR-4,2.,5.) The coincidence sum effect of cascade 3271600100045 gamma-rays (2-5%) 3271600100046 (ERR-5,0.1,1.0) The uncertainties of irradiation, 3271600100047 cooling and measuring times (0.1-1.0%) 3271600100048 (ERR-6,0.7,8.3) Relative gamma-ray intensity (0.7-8.3%)3271600100049 (ERR-7,0.02,6.1) Half life (0.02-6.1%) 3271600100050 (MONIT1-ERR) Standard cross sections uncertainty 3271600100051 (MONIT2-ERR) Standard cross sections uncertainty 3271600100052 CORRECTION Measurements were corrected for gamma-ray 3271600100053 attenuations, random coincidence, dead time and 3271600100054 fluctuation of neutron flux. 3271600100055 STATUS (TABLE) All measured reactions data and monitor 3271600100056 reaction data are taken from Table 3 at page 822 in J, 3271600100057 JRN, 300, 819, 2014. 3271600100058 HISTORY (20140521C) Compiled by CHEN Guochang and 3271600100059 ZHUANG Youxiang (CNDC) 3271600100060 ENDBIB 58 0 3271600100061 COMMON 2 3 3271600100062 ERR-2 ERR-3 3271600100063 PER-CENT PER-CENT 3271600100064 0.1 0.5 3271600100065 ENDCOMMON 3 0 3271600100066 ENDSUBENT 65 0 3271600199999 SUBENT 32716002 20140521 31643271600200001 BIB 2 2 3271600200002 REACTION (65-TB-159(N,2N)65-TB-158,,SIG) 3271600200003 DECAY-DATA (65-TB-158-G,180.YR,DG,944.09,0.439) 3271600200004 ENDBIB 2 0 3271600200005 NOCOMMON 0 0 3271600200006 DATA 8 3 3271600200007 EN EN-ERR DATA ERR-T MONIT1 MONIT1-ERR 3271600200008 MONIT2 MONIT2-ERR 3271600200009 MEV MEV MB MB MB MB 3271600200010 MB MB 3271600200011 13.5 0.2 1670. 96. 457.9 6.83271600200012 125.7 0.8 3271600200013 14.1 0.2 1700. 82. 459.8 6.83271600200014 121.6 0.6 3271600200015 14.8 0.2 1657. 78. 459.7 5.03271600200016 111.9 0.5 3271600200017 ENDDATA 10 0 3271600200018 ENDSUBENT 17 0 3271600299999 SUBENT 32716003 20140521 31643271600300001 BIB 2 2 3271600300002 REACTION (65-TB-159(N,P)64-GD-159,,SIG) 3271600300003 DECAY-DATA (64-GD-159,18.479HR,DG,363.55,0.114) 3271600300004 ENDBIB 2 0 3271600300005 NOCOMMON 0 0 3271600300006 DATA 8 3 3271600300007 EN EN-ERR DATA ERR-T MONIT1 MONIT1-ERR 3271600300008 MONIT2 MONIT2-ERR 3271600300009 MEV MEV MB MB MB MB 3271600300010 MB MB 3271600300011 13.5 0.2 3.1 0.4 457.9 6.83271600300012 125.7 0.8 3271600300013 14.1 0.2 4.5 0.6 459.8 6.83271600300014 121.6 0.6 3271600300015 14.8 0.2 6.1 0.5 459.7 5.03271600300016 111.9 0.5 3271600300017 ENDDATA 10 0 3271600300018 ENDSUBENT 17 0 3271600399999 SUBENT 32716004 20140521 31643271600400001 BIB 2 2 3271600400002 REACTION (65-TB-159(N,A)63-EU-156,,SIG) 3271600400003 DECAY-DATA (63-EU-156,15.19D,DG,811.79,0.0970) 3271600400004 ENDBIB 2 0 3271600400005 NOCOMMON 0 0 3271600400006 DATA 8 3 3271600400007 EN EN-ERR DATA ERR-T MONIT1 MONIT1-ERR 3271600400008 MONIT2 MONIT2-ERR 3271600400009 MEV MEV MB MB MB MB 3271600400010 MB MB 3271600400011 13.5 0.2 0.8 0.2 457.9 6.83271600400012 125.7 0.8 3271600400013 14.1 0.2 1.3 0.2 459.8 6.83271600400014 121.6 0.6 3271600400015 14.8 0.2 1.8 0.2 459.7 5.03271600400016 111.9 0.5 3271600400017 ENDDATA 10 0 3271600400018 ENDSUBENT 17 0 3271600499999 ENDENTRY 4 0 3271699999999