ENTRY 32680 20120209 31543268000000001 SUBENT 32680001 20120209 31543268000100001 BIB 17 65 3268000100002 TITLE Cross section measurements of (n,2n), (n,p) and (n,a) 3268000100003 reactions on gadolinium isotopes in the neutron 3268000100004 energy range of 13.5 to 14.8 MeV 3268000100005 AUTHOR (Junhua Luo,Rong Liu,Li Jiang,Guihua Sun,Zhenlai Liu, 3268000100006 Fengqun Zhou) 3268000100007 INSTITUTE (3CPRHXU) Department of Physics, Hexi Univ. 3268000100008 (3CPRPDU) Department of Physics, Pingdingshan Univ. 3268000100009 (3CPRNPC) Institute of Nuclear Physics and Chemistry, 3268000100010 Chinese Academy of Engineering Physics (Mianyang city, 3268000100011 Sichuan Province) 3268000100012 REFERENCE (J,RCA,98,127,2010) 3268000100013 #doi:10.1524/ract.2010.1702 3268000100014 FACILITY (NGEN,3CPRNPC) Pd-300 neutron generator at Chinese 3268000100015 Academy of Engineering Physics (CAEP) 3268000100016 SAMPLE About 8 gram Gd2O3 powder of natural isotope 3268000100017 composition sample(>99.99% purity). 3268000100018 DETECTOR (HPGE) The crystal geometry is 70.1 x 72.3 mm in 3268000100019 diameter and length. The relative efficiency is about 3268000100020 68%, and energy resolution is 1.69 keV at 1332 keV 3268000100021 gamma ray from Co-60. 3268000100022 METHOD (ACTIV) 3268000100023 MONITOR ((MONIT1)41-NB-93(N,2N)41-NB-92-M,,SIG) 3268000100024 ((MONIT2)13-AL-27(N,A)11-NA-24,,SIG) 3268000100025 DECAY-MON ((MONIT1)41-NB-92-M,10.15D,DG,934.43,0.9907) 3268000100026 ((MONIT2)11-NA-24,14.96HR,DG,1368.6,1.00) 3268000100027 MONIT-REF (,M.Wagner+,B,PH-DAT,13-5,1990) 3268000100028 The cross sections of monitor reaction were defined by 3268000100029 interpolation of the evaluated values of the reference 3268000100030 from "Physik Daten - Physics Data, Evaluation of Cross 3268000100031 Sections for 14 Important Neutron-Dosimetry Reactions. 3268000100032 Fachinformationszentrum Karlsruhe, Gesellschaft fur 3268000100033 wissenschaftlich-technische Information mbH, Federal 3268000100034 Republic of Germany, No. 13-5 (1990)". 3268000100035 INC-SOURCE (D-T) The tritium-titanium (T-Ti) target used in the 3268000100036 generator was 2.40 mg/cm2 thick. 3268000100037 ERR-ANALYS (ERR-T) Total uncertainty of cross section is in the 3268000100038 range from 3.5% to 30%. 3268000100039 (ERR-S,0.1,25.) Counting statistics is between 0.1% 3268000100040 and 25%. 3268000100041 (ERR-1,0.5,1.5) The Uncertainty of monitor cross 3268000100042 section is from around 0.5% to 1.5%. 3268000100043 (ERR-2) Isotopic abundance (0.1 %) 3268000100044 (ERR-3,2.,3.) Detector efficiency (2%-3%) 3268000100045 (ERR-4) Weight of sample (0.1%) 3268000100046 (ERR-5) Self-absorption of gamma-ray (about 0.5%) 3268000100047 (ERR-6,0.,5.) Coincidence sum effect of cascade 3268000100048 gamma-rays (0%-5%) 3268000100049 (ERR-7,0.1,1.0) Uncertainties of irradiation, cooling 3268000100050 and measuring times (0.1%- 1.0%) 3268000100051 CORRECTION The neutron flux was monitored by a uranium fission 3268000100052 chamber so that corrections were made for small 3268000100053 variations in the yield. The self-absorption of the 3268000100054 sample at a given gamma-energy, the coincidence sum 3268000100055 effect of cascade gamma-rays in the investigated 3268000100056 nuclide and in the counting geometry were taken into 3268000100057 account in data analysis, respectively. 3268000100058 COMMENT The uncertainty of standard cross sections at Table2 3268000100059 in J,RCA,98,p129(2010) is the monitor reaction cross 3268000100060 sections uncertainty. 3268000100061 HISTORY (20100906C)Compiled by Guochang CHEN (CNDC) 3268000100062 (20120209U)Corrected the sample information from 3268000100063 62-GD-152 to 64-GD-152 at subentry 2. 3268000100064 STATUS (TABLE) All measured reactions data and monitor 3268000100065 reaction data are taken from Table3 at page 130 in 3268000100066 J,RCA,98,127,2010. 3268000100067 ENDBIB 65 0 3268000100068 COMMON 4 3 3268000100069 ERR-2 ERR-4 ERR-5 EN-ERR 3268000100070 PER-CENT PER-CENT PER-CENT MEV 3268000100071 0.1 0.1 0.5 0.2 3268000100072 ENDCOMMON 3 0 3268000100073 ENDSUBENT 72 0 3268000199999 SUBENT 32680002 20120209 31543268000200001 BIB 3 3 3268000200002 REACTION (64-GD-152(N,2N)64-GD-151,,SIG) 3268000200003 DECAY-DATA (64-GD-151,124.D,DG,243.28,0.0560) 3268000200004 SAMPLE (64-GD-152,NAT=0.0020) 3268000200005 ENDBIB 3 0 3268000200006 NOCOMMON 0 0 3268000200007 DATA 7 3 3268000200008 EN DATA ERR-T MONIT1 MONIT1-ERR MONIT2 3268000200009 MONIT2-ERR 3268000200010 MEV MB MB MB MB MB 3268000200011 MB 3268000200012 13.5 1500. 145. 457.9 6.8 125.7 3268000200013 0.8 3268000200014 14.1 1737. 153. 459.8 6.8 121.6 3268000200015 0.6 3268000200016 14.8 1896. 157. 459.7 5.0 111.9 3268000200017 0.5 3268000200018 ENDDATA 10 0 3268000200019 ENDSUBENT 18 0 3268000299999 SUBENT 32680003 20100906 31463268000300001 BIB 3 3 3268000300002 REACTION (64-GD-154(N,2N)64-GD-153,,SIG) 3268000300003 DECAY-DATA (64-GD-153,241.6D,DG,97.43,0.300) 3268000300004 SAMPLE (64-GD-154,NAT=0.0218) 3268000300005 ENDBIB 3 0 3268000300006 NOCOMMON 0 0 3268000300007 DATA 7 3 3268000300008 EN DATA ERR-T MONIT1 MONIT1-ERR MONIT2 3268000300009 MONIT2-ERR 3268000300010 MEV MB MB MB MB MB 3268000300011 MB 3268000300012 13.5 1850. 155. 457.9 6.8 125.73268000300013 0.8 3268000300014 14.1 1910. 165. 459.8 6.8 121.63268000300015 0.6 3268000300016 14.8 2001. 108. 459.7 5.0 111.93268000300017 0.5 3268000300018 ENDDATA 10 0 3268000300019 ENDSUBENT 18 0 3268000399999 SUBENT 32680004 20100906 31463268000400001 BIB 3 3 3268000400002 REACTION (64-GD-160(N,2N)64-GD-159,,SIG) 3268000400003 DECAY-DATA (64-GD-159,18.48HR,DG,363.55,0.114) 3268000400004 SAMPLE (64-GD-160,NAT=0.2186) 3268000400005 ENDBIB 3 0 3268000400006 NOCOMMON 0 0 3268000400007 DATA 7 3 3268000400008 EN DATA ERR-T MONIT1 MONIT1-ERR MONIT2 3268000400009 MONIT2-ERR 3268000400010 MEV MB MB MB MB MB 3268000400011 MB 3268000400012 13.5 1745. 125. 457.9 6.8 125.73268000400013 0.8 3268000400014 14.1 1806. 103. 459.8 6.8 121.63268000400015 0.6 3268000400016 14.8 1903. 113. 459.7 5.0 111.93268000400017 0.5 3268000400018 ENDDATA 10 0 3268000400019 ENDSUBENT 18 0 3268000499999 SUBENT 32680005 20100906 31463268000500001 BIB 3 3 3268000500002 REACTION (64-GD-156(N,P)63-EU-156,,SIG) 3268000500003 DECAY-DATA (63-EU-156,15.19D,DG,811.8,0.097) 3268000500004 SAMPLE (64-GD-156,NAT=0.2047) 3268000500005 ENDBIB 3 0 3268000500006 NOCOMMON 0 0 3268000500007 DATA 7 2 3268000500008 EN DATA ERR-T MONIT1 MONIT1-ERR MONIT2 3268000500009 MONIT2-ERR 3268000500010 MEV MB MB MB MB MB 3268000500011 MB 3268000500012 13.5 4.5 0.9 457.9 6.8 125.73268000500013 0.8 3268000500014 14.8 5.6 0.5 459.7 5.0 111.93268000500015 0.5 3268000500016 ENDDATA 8 0 3268000500017 ENDSUBENT 16 0 3268000599999 SUBENT 32680006 20100906 31463268000600001 BIB 3 3 3268000600002 REACTION (64-GD-157(N,P)63-EU-157,,SIG) 3268000600003 DECAY-DATA (63-EU-157,15.18HR,DG,370.5,0.110) 3268000600004 SAMPLE (64-GD-157,NAT=0.1565) 3268000600005 ENDBIB 3 0 3268000600006 NOCOMMON 0 0 3268000600007 DATA 7 3 3268000600008 EN DATA ERR-T MONIT1 MONIT1-ERR MONIT2 3268000600009 MONIT2-ERR 3268000600010 MEV MB MB MB MB MB 3268000600011 MB 3268000600012 13.5 3.1 0.2 457.9 6.8 125.73268000600013 0.8 3268000600014 14.1 4.2 0.2 459.8 6.8 121.63268000600015 0.6 3268000600016 14.8 5.1 0.2 459.7 5.0 111.93268000600017 0.5 3268000600018 ENDDATA 10 0 3268000600019 ENDSUBENT 18 0 3268000699999 SUBENT 32680007 20100906 31463268000700001 BIB 3 3 3268000700002 REACTION (64-GD-158(N,P)63-EU-158,,SIG) 3268000700003 DECAY-DATA (63-EU-158,45.9MIN,DG,944.1,0.250) 3268000700004 SAMPLE (64-GD-158,NAT=0.2484) 3268000700005 ENDBIB 3 0 3268000700006 NOCOMMON 0 0 3268000700007 DATA 7 3 3268000700008 EN DATA ERR-T MONIT1 MONIT1-ERR MONIT2 3268000700009 MONIT2-ERR 3268000700010 MEV MB MB MB MB MB 3268000700011 MB 3268000700012 13.5 1.9 0.1 457.9 6.8 125.73268000700013 0.8 3268000700014 14.1 2.1 0.1 459.8 6.8 121.63268000700015 0.6 3268000700016 14.8 2.9 0.1 459.7 5.0 111.93268000700017 0.5 3268000700018 ENDDATA 10 0 3268000700019 ENDSUBENT 18 0 3268000799999 SUBENT 32680008 20100906 31463268000800001 BIB 3 3 3268000800002 REACTION (64-GD-158(N,A)62-SM-155,,SIG) 3268000800003 DECAY-DATA (62-SM-155,22.3MIN,DG,245.77,0.037) 3268000800004 SAMPLE (64-GD-158,NAT=0.2484) 3268000800005 ENDBIB 3 0 3268000800006 NOCOMMON 0 0 3268000800007 DATA 7 1 3268000800008 EN DATA ERR-T MONIT1 MONIT1-ERR MONIT2 3268000800009 MONIT2-ERR 3268000800010 MEV MB MB MB MB MB 3268000800011 MB 3268000800012 14.8 1.0 0.3 459.7 5.0 111.93268000800013 0.5 3268000800014 ENDDATA 6 0 3268000800015 ENDSUBENT 14 0 3268000899999 ENDENTRY 8 0 3268099999999