ENTRY 32702 20180419 3270200000001 SUBENT 32702001 20180419 20180726 3270200100001 BIB 16 45 3270200100002 TITLE Cross-sections for formation of 99mTc through 3270200100003 natRu(n,x)99mTc reaction induced by neutrons at 13.5 3270200100004 and 14.8 MeV 3270200100005 AUTHOR (Junhua Luo, Jiuning Han, Fei Tuo, Xiangzhong Kong, 3270200100006 Rong Liu, Li Jiang) 3270200100007 INSTITUTE (3CPRHXU,3CPRLNZ,3CPRNPC) 3270200100008 REFERENCE (J,RPC,81,495,2012) 3270200100009 FACILITY (NGEN,3CPRNPC) K-400 Neutron Generator 3270200100010 SAMPLE About 5 gram of Ru powder of natural isotope 3270200100011 composition (99.99% purity) was pressed at 10 t/cm2, 3270200100012 and a pellet, 0.2 cm thick and 2.0 cm in diameter. 3270200100013 Monitor foils of Al (99.999% pure, 0.04 mm thick) of 3270200100014 the same diameter as the pellets were then attached 3270200100015 in front and at the back of each sample. 3270200100016 DETECTOR (HPGE) The crystal geometry is 70.1 x 72.3 mm in 3270200100017 diameter and length. The relative efficiency is about 3270200100018 68%, and energy resolution is 1.69 keV at 1332 keV 3270200100019 gamma ray from Co-60. 3270200100020 METHOD (ACTIV) Irradiation of the samples was lasted 128 min 3270200100021 with a yield ~4E10 to 5E10 n/s. 3270200100022 MONITOR (13-AL-27(N,A)11-NA-24,,SIG) 3270200100023 DECAY-MON (11-NA-24,14.959HR,DG,1368.6,1.00) 3270200100024 MONIT-REF (,M.Wagner+,B,PH-DAT,13-5,,1990) 3270200100025 The cross section of monitor reaction was determined 3270200100026 by interpolation of the evaluated values from 3270200100027 reference. 3270200100028 INC-SOURCE (D-T) The tritium-titanium (T-Ti) target used in the 3270200100029 generator was 2.18 mg/cm2 thick. 3270200100030 ERR-ANALYS (ERR-T) Total uncertainty of measurement. 3270200100031 (ERR-S,1.,8.) Counting statistics is between 1-8%. 3270200100032 (ERR-1) The uncertainty of weight of sample is 0.1%. 3270200100033 (ERR-2) The uncertainty of self-absorption of 3270200100034 gamma-ray is 0.5%. 3270200100035 (ERR-3,2.,3.) The uncertainty of detector efficiency 3270200100036 is between 2% and 3%. 3270200100037 (ERR-4,0.1,1.) Uncertainties of irradiation, cooling 3270200100038 and measuring times is between 0.1% and 1.0%. 3270200100039 (MONIT-ERR) The uncertainty of monitor cross section. 3270200100040 CORRECTION The data for nat-Ru(n,x)99mTc reaction cross sections 3270200100041 were corrected for the measured contributions of the 3270200100042 102Ru(n,a)99Mo. 3270200100043 STATUS (TABLE) Table 2 of Rad.Phys.Chem.81(2012)495 3270200100044 HISTORY (20120820C) Compiled by Youxiang ZHUANG and Guochang 3270200100045 CHEN (CNDC). 3270200100046 (20180419U) On. REFERENCE: IPC -> RPC 3270200100047 ENDBIB 45 0 3270200100048 COMMON 2 3 3270200100049 ERR-1 ERR-2 3270200100050 PER-CENT PER-CENT 3270200100051 0.1 0.5 3270200100052 ENDCOMMON 3 0 3270200100053 ENDSUBENT 52 0 3270200199999 SUBENT 32702002 20120820 20121214 3270200200001 BIB 2 3 3270200200002 REACTION (44-RU-0(N,X)43-TC-99-M,IND,SIG) 3270200200003 DECAY-DATA (43-TC-99-M,6.01HR,DG,140.511,0.8906) 3270200200004 (42-MO-99,65.94HR,DG,739.5,0.121) 3270200200005 ENDBIB 3 0 3270200200006 NOCOMMON 0 0 3270200200007 DATA 6 2 3270200200008 EN EN-ERR DATA ERR-T MONIT MONIT-ERR 3270200200009 MEV MEV MB MB MB MB 3270200200010 13.5 0.2 9.6 1.5 125.7 0.8 3270200200011 14.8 0.2 9.2 1.1 111.9 0.5 3270200200012 ENDDATA 4 0 3270200200013 ENDSUBENT 12 0 3270200299999 ENDENTRY 2 0 3270299999999