ENTRY 22817 20151216 22462281700000001 SUBENT 22817001 20151216 22462281700100001 BIB 16 35 2281700100002 TITLE Measurement of neutron activation cross sections for 2281700100003 the 99Tc(n,p)99Mo, 99Tc(n,alpha)96Nb, 2281700100004 99Tc(n,n'alpha)95Nb, and 99Tc(n,n')99mTc reactions 2281700100005 at 13.5 and 14.8 MeV 2281700100006 AUTHOR (Y.Ikeda, E.T.Cheng, C.Konno, H.Maekawa) 2281700100007 INSTITUTE (2JPNJAE) 2281700100008 (1USAUSA) TSI Research, Solana Beach, California 2281700100009 REFERENCE (J,NSE,116,28,1994) 2281700100010 (P,INDC(JPN)-162,19,1992) Same data given 2281700100011 FACILITY (CCW,2JPNJAE) FNS at JAERI 2281700100012 INC-SOURCE (D-T) 350 keV, 2 mA deuteron 2281700100013 INC-SPECT - Source strength was ~3.x 10**11 neutrons/sec. 2281700100014 - Source neutron spectra were calculated by the 2281700100015 MORSE-DD code with the FUSION-J3 cross-section 2281700100016 library based on the JENDL-3 nuclear data file. 2281700100017 SAMPLE - 99Tc deposited on thin plastic plate. 2281700100018 - 3 mm in diam., 3.60 x 10**18 99Tc nuclei contained 2281700100019 - Two identical samples were positioned 20 mm from 2281700100020 the source and at 0 deg (14.8 MeV) and 135 deg 2281700100021 (13.5 MeV). 2281700100022 METHOD (ACTIV) Irradiated for ~6 hours 2281700100023 DETECTOR (GE) Efficiency of 117% for 1.3 MeV gamma rays 2281700100024 relative to a 76-mm diam. 76-mm thick. NaI(Tl) 2281700100025 MONITOR (41-NB-93(N,2N)41-NB-92-M,,SIG) 2281700100026 MONIT-REF (,T.B.Ryves,S,NEANDC-259,293,1989) 2281700100027 REL-REF (R,,E.Browne+,B,BROWNE,,1986) Decay data 2281700100028 ERR-ANALYS (ERR-T) Total uncertainty 2281700100029 (ERR-1) Number of 99Tc 2281700100030 (ERR-8) Uncertainty of the flux monitor reaction rate 2281700100031 STATUS (TABLE) Table III of Nucl.Sci.Eng.116(1994)28 2281700100032 (APRVD) Approved by Chikara Konno (2011-05-10) 2281700100033 HISTORY (20010503C) VM, Initially Z1003 2281700100034 (20030505U) Corrected, J.O.S. 2281700100035 (20110510A) On. Revised with Nucl.Sci.Eng.116(1994)28 2281700100036 (20151216A) SD: DECAY-DATA corrected in Subent 005. 2281700100037 ENDBIB 35 0 2281700100038 COMMON 5 3 2281700100039 EN-NRM MONIT MONIT-ERR ERR-1 ERR-8 2281700100040 MEV MB MB PER-CENT PER-CENT 2281700100041 14. 459. 7. 2.0 3.0 2281700100042 ENDCOMMON 3 0 2281700100043 ENDSUBENT 42 0 2281700199999 SUBENT 22817002 20110509 22292281700200001 BIB 4 10 2281700200002 REACTION (43-TC-99(N,P)42-MO-99,,SIG) 2281700200003 DECAY-DATA (42-MO-99,2.7477D,DG,739.51,0.1214) 2281700200004 ERR-ANALYS (ERR-S,2.,8.) Statistics (2-8%) 2281700200005 (ERR-2) Efficiency (2.0%) 2281700200006 (ERR-3,,0.1) Decay constant (<0.1%) 2281700200007 (ERR-4) Gamma-ray branching (1.8%) 2281700200008 (ERR-5) Sum-peak correction (0.2%) 2281700200009 (ERR-6) Gamma-ray self-absorption (0.1%) 2281700200010 (ERR-7) Low-energy neutrons (0.2%) 2281700200011 HISTORY (20110509A) On. DECAY-DATA, ERR-ANALYS added 2281700200012 ENDBIB 10 0 2281700200013 COMMON 5 3 2281700200014 ERR-2 ERR-4 ERR-5 ERR-6 ERR-7 2281700200015 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2281700200016 2.0 1.8 0.2 0.1 0.2 2281700200017 ENDCOMMON 3 0 2281700200018 DATA 4 2 2281700200019 EN EN-ERR DATA ERR-T 2281700200020 MEV MEV MB MB 2281700200021 13.5 0.2 10.7 1.0 2281700200022 14.8 0.2 14.0 0.9 2281700200023 ENDDATA 4 0 2281700200024 ENDSUBENT 23 0 2281700299999 SUBENT 22817003 20110509 22292281700300001 BIB 4 10 2281700300002 REACTION (43-TC-99(N,A)41-NB-96,,SIG) 2281700300003 DECAY-DATA (41-NB-96,23.35HR,DG,568.86,0.568) 2281700300004 ERR-ANALYS (ERR-S,2.,3.) Statistics (2-3%) 2281700300005 (ERR-2) Efficiency (2.0%) 2281700300006 (ERR-3) Decay constant (0.2%) 2281700300007 (ERR-4) Gamma-ray branching (2.7%) 2281700300008 (ERR-5) Sum-peak correction (0.2%) 2281700300009 (ERR-6) Gamma-ray self-absorption (0.2%) 2281700300010 (ERR-7) Low-energy neutrons (0.2%) 2281700300011 HISTORY (20110509A) On. DECAY-DATA, ERR-ANALYS added 2281700300012 ENDBIB 10 0 2281700300013 COMMON 6 3 2281700300014 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 ERR-7 2281700300015 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2281700300016 2.0 0.2 2.7 0.2 0.2 0.2 2281700300017 ENDCOMMON 3 0 2281700300018 DATA 4 2 2281700300019 EN EN-ERR DATA ERR-T 2281700300020 MEV MEV MB MB 2281700300021 13.5 0.2 4.5 0.3 2281700300022 14.8 0.2 5.6 0.4 2281700300023 ENDDATA 4 0 2281700300024 ENDSUBENT 23 0 2281700399999 SUBENT 22817004 20110509 22292281700400001 BIB 4 9 2281700400002 REACTION (43-TC-99(N,N+A)41-NB-95,,SIG) 2281700400003 DECAY-DATA (41-NB-95,34.97D,DG,765.80,0.9979) 2281700400004 ERR-ANALYS (ERR-S) Statistics (80%) 2281700400005 (ERR-2) Efficiency (2.0%) 2281700400006 (ERR-3) Decay constant (0.1%) 2281700400007 (ERR-4) Gamma-ray branching (0.1%) 2281700400008 (ERR-5) Sum-peak correction (0.1%) 2281700400009 (ERR-6) Gamma-ray self-absorption (0.2%) 2281700400010 HISTORY (20110509A) On. DECAY-DATA, ERR-ANALYS added 2281700400011 ENDBIB 9 0 2281700400012 COMMON 6 3 2281700400013 ERR-S ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 2281700400014 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2281700400015 80. 2.0 0.1 0.1 0.1 0.2 2281700400016 ENDCOMMON 3 0 2281700400017 DATA 4 1 2281700400018 EN EN-ERR DATA ERR-T 2281700400019 MEV MEV MB MB 2281700400020 14.8 0.2 2.0 1.6 2281700400021 ENDDATA 3 0 2281700400022 ENDSUBENT 21 0 2281700499999 SUBENT 22817005 20151216 22462281700500001 BIB 5 14 2281700500002 REACTION (43-TC-99(N,INL)43-TC-99-M,,SIG) 2281700500003 DECAY-DATA (43-TC-99-M,6.006HR,DG,140.47,0.872) 2281700500004 CORRECTION Two separate measurements were carried out at 2281700500005 different cooling times to permit subtraction of the 2281700500006 contribution from 99Mo, which is subsequently decays 2281700500007 into 99mTc. 2281700500008 ERR-ANALYS (ERR-S,0.1,0.2) Statistics (0.1-0.2%) 2281700500009 (ERR-2) Efficiency (2.5%) 2281700500010 (ERR-3,,0.1) Decay constant (<0.1%) 2281700500011 (ERR-4) Gamma-ray branching (0.6%) 2281700500012 (ERR-6) Gamma-ray self-absorption (0.5%) 2281700500013 (ERR-7) Low-energy neutrons (5.0%) 2281700500014 HISTORY (20110509A) On. DECAY-DATA, ERR-ANALYS added 2281700500015 (20151216A) SD: Tc-95m -> Tc-99m in DECAY-DATA. 2281700500016 ENDBIB 14 0 2281700500017 COMMON 4 3 2281700500018 ERR-2 ERR-4 ERR-6 ERR-7 2281700500019 PER-CENT PER-CENT PER-CENT PER-CENT 2281700500020 2.5 0.6 0.5 5.0 2281700500021 ENDCOMMON 3 0 2281700500022 DATA 4 2 2281700500023 EN EN-ERR DATA ERR-T 2281700500024 MEV MEV MB MB 2281700500025 13.5 0.2 104. 6. 2281700500026 14.8 0.2 76. 4. 2281700500027 ENDDATA 4 0 2281700500028 ENDSUBENT 27 0 2281700599999 ENDENTRY 5 0 2281799999999