ENTRY 32596 20150524 31703259600000001 SUBENT 32596001 20150524 31703259600100001 BIB 13 38 3259600100002 TITLE The cross section measurements for the 3259600100003 179Hf(n,2n)178Hfm2 and 209Bi(n,2n)208Bi reactions 3259600100004 AUTHOR (Wang Yongchang, Yuan Junqian, Yang Jingkang, 3259600100005 Kong Xiangzhong) 3259600100006 INSTITUTE (3CPRLNZ) 3259600100007 REFERENCE (J,CST,27,174,1993) 3259600100008 (J,JRN,227,15,1998) Same data given for both reactions 3259600100009 ((R,INDC(CPR)-036,5,1995)=(J,CNDP,14,5,1995)) 3259600100010 Same data given for both reactions 3259600100011 (J,CNP,19,(1),35,1997) 3259600100012 Different data for 179Hf(n,2n)178Hfm2 given 3259600100013 FACILITY (NGEN,3CPRLNZ) ZF-300-II intense neutron generator 3259600100014 INC-SOURCE (D-T) T-Ti target (~0.9 mg/cm2 thick) with 125 keV 3259600100015 deuteron beam (~20 mA). 3259600100016 Neutron energy measured by the Zr(n,2n)/Nb(n,2n) cross 3259600100017 section ratio method. 3259600100018 METHOD (ACTIV) Irradiated for 12 hr 3259600100019 DETECTOR (HPGE) CH8403 coaxial high-purity Ge detector 3259600100020 (relative efficiency of 20 %, energy resolution of 3259600100021 3 keV at 1.33 MeV) 3259600100022 MONITOR (41-NB-93(N,2N)41-NB-92-M,,SIG) 3259600100023 The CST article mentions that 27Al(n,a)24Na was used 3259600100024 for 209Bi(n,2n)208Bi. 3259600100025 DECAY-MON (41-NB-92-M,10.15D,DG,934.,0.99) 3259600100026 MONIT-REF (,Zhao Wenrong+,R,INDC(CPR)-16,1989) 3259600100027 CORRECTION Corrected for 3259600100028 - neutron flux fluctuation, 3259600100029 - gamma-ray self-absorption in the sample, 3259600100030 - counting geometry, 3259600100031 - coincidence sum effect in the investigated nuclide. 3259600100032 (large correction for 179Hf(n,2n)178m2Hf: 1.227 for 3259600100033 the 495 keV gamma line and 1.250 for the 574 keV 3259600100034 gamma line.) 3259600100035 HISTORY (19930510C) Compiled by Liang Qichang (CNDC) 3259600100036 (19970925D) HW.- Entry deleted, superseded by 31485002 3259600100037 and -003. 3259600100038 (20100329A) SD:Updated to new date formats,lower case. 3259600100039 (20150524S) On. Entry restored and updated. 3259600100040 ENDBIB 38 0 3259600100041 NOCOMMON 0 0 3259600100042 ENDSUBENT 41 0 3259600199999 SUBENT 32596002 20150524 31703259600200001 BIB 7 19 3259600200002 REACTION (72-HF-179(N,2N)72-HF-178-M2,,SIG) 3259600200003 SAMPLE (72-HF-179,NAT=0.13629) HfO2 powder (purity of 99%) 3259600200004 pressed into 20 mm in diam. sandwiched between two 3259600200005 monitor foils. 3259600200006 DECAY-DATA (72-HF-178-M2,31.YR,DG,574.,0.837) 3259600200007 494.988 keV gamma line (68.9%) also in the CST article3259600200008 COMMENT By compiler: 3259600200009 The CNP article reports 6.04 +/- 0.32 mb at 14.60 MeV.3259600200010 ERR-ANALYS (ERR-T) Total uncertainty propagated from 3259600200011 (MONIT-ERR) Standard cross section (1.1%)3259600200012 (ERR-1) Gamma-ray self absorption (0.5%)3259600200013 (ERR-2) Weight and purity of sample (0.5%)3259600200014 (ERR-3) Efficiency of gamma-ray full energy peak (2.0%)3259600200015 (ERR-4) Full peak area analysis (14.2%)3259600200016 (ERR-5) Correction of sum peak (6.9%)3259600200017 (ERR-6) Fluctuation of neutron fluence (1.0%)3259600200018 (ERR-7) Neutron scattering (4.0%)3259600200019 STATUS (TABLE) Table 3 of J.Radioanal.Nucl.Chem.227(1998)15 3259600200020 HISTORY (20150524S) On. Restored and updated. 3259600200021 ENDBIB 19 0 3259600200022 COMMON 8 6 3259600200023 MONIT-ERR ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 3259600200024 ERR-6 ERR-7 3259600200025 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3259600200026 PER-CENT PER-CENT 3259600200027 1.1 0.5 0.5 2.0 14.2 6.9 3259600200028 1.0 4.0 3259600200029 ENDCOMMON 6 0 3259600200030 DATA 4 1 3259600200031 EN EN-ERR DATA ERR-T 3259600200032 MEV MEV MB MB 3259600200033 14.4 0.2 6.04 0.31 3259600200034 ENDDATA 3 0 3259600200035 ENDSUBENT 34 0 3259600299999 SUBENT 32596003 20150524 31703259600300001 BIB 6 15 3259600300002 REACTION (83-BI-209(N,2N)83-BI-208,,SIG) 3259600300003 SAMPLE Metallic powder (purity of 99.0%) pressed into 20 mm in3259600300004 diam. sandwiched between two monitor foils. 3259600300005 DECAY-DATA (83-BI-208,3.68E+5YR,DG,2614.,0.9979) 3259600300006 ERR-ANALYS (ERR-T) Total uncertainty propagated from 3259600300007 (MONIT-ERR) Standard cross section (1.2%)3259600300008 (ERR-1) Gamma-ray self-absorption (1.0%)3259600300009 (ERR-2) Weight and purity of sample (0.15%)3259600300010 (ERR-3) Efficiency of gamma-ray full energy peak (2.0%)3259600300011 (ERR-4) Full peak area analysis (7.0%)3259600300012 (ERR-5) Correction of sum peak (1.0%)3259600300013 (ERR-6) Fluctuation of neutron fluence (1.0%)3259600300014 (ERR-7) Neutron scattering (0.5%)3259600300015 STATUS (TABLE) Table 3 of J.Radioanal.Nucl.Chem.227(1998)15 3259600300016 HISTORY (20150524S) On. Restored and updated. 3259600300017 ENDBIB 15 0 3259600300018 COMMON 8 6 3259600300019 MONIT-ERR ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 3259600300020 ERR-6 ERR-7 3259600300021 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3259600300022 PER-CENT PER-CENT 3259600300023 1.2 1.0 0.15 2.0 7.0 1.0 3259600300024 1.0 0.5 3259600300025 ENDCOMMON 6 0 3259600300026 DATA 4 1 3259600300027 EN EN-ERR DATA ERR-T 3259600300028 MEV MEV MB MB 3259600300029 14.6 0.2 2279. 173. 3259600300030 ENDDATA 3 0 3259600300031 ENDSUBENT 30 0 3259600399999 ENDENTRY 3 0 3259699999999