ENTRY G3129 20180627 G042G312900000001 SUBENT G3129001 20180627 G042G312900100001 BIB 12 31 G312900100002 TITLE Measurement of isomeric yield ratios in the G312900100003 photo-production of 133m,g;137m,gCe from natCe using G312900100004 55-, 60-, and 65-MeV bremsstrahlung G312900100005 AUTHOR (H.J.Kim, S.J.Noh, Y.R.Kang, M.W.Lee, D.H.Jeong, G312900100006 J.K.Kim, K.M.Yang, T.I.Ro, S.G.Shin, Y.U.Kye, G312900100007 M.H.Cho, G.N.Kim) G312900100008 INSTITUTE (3KORDRM,3KORDAU,3KORPUE,3KORKNU) G312900100009 (3KORKOR) Inje University, Gimhae G312900100010 REFERENCE (J,NIM/B,349,141,2015) G312900100011 FACILITY (LINAC,3KORPUE) Pohang Accelerator Laboratory (PAL) G312900100012 INC-SOURCE (BRST) Pulsed electron beam on 0.1 mm thick tungsten G312900100013 target G312900100014 SAMPLE High-purity (99.9%) natural cerium foil G312900100015 (size 10 mm x 10 mm, thickness 0.1 mm) G312900100016 METHOD (ACTIV) Irradiated for 3 hours, repetition rate of G312900100017 15 Hz, pulse width of 1.6 micro-sec, peak current of G312900100018 50 mA G312900100019 (GSPEC) G312900100020 DETECTOR (HPGE) Energy resolution of 1.8 keV FWHM at 1332.5 keV G312900100021 peak of 60Co and detection efficiency of 20% at G312900100022 1332.5 keV relative to 7.62 cm in diameter and G312900100023 7.62 cm in length NaI(Tl) detector G312900100024 ERR-ANALYS (ERR-T) Total uncertainty (6.1-8.9%) G312900100025 (ERR-S,1.,4.) Statistical uncertainty (1-4%) G312900100026 (ERR-1) irradiation time (~0.3%) G312900100027 (ERR-2) detection efficiency (~2.9%) G312900100028 (ERR-3,3.5,7.2) half-life and gamma-ray abundances G312900100029 (3.5-7.2%) G312900100030 STATUS (TABLE) Table 3 of Nucl.Instrum.Meth.B,349,141,2015 G312900100031 (APRVD) Approved by G.N.Kim (2018-07-03) G312900100032 HISTORY (20180627C) S.C.Yang G312900100033 ENDBIB 31 0 G312900100034 COMMON 2 3 G312900100035 ERR-1 ERR-2 G312900100036 PER-CENT PER-CENT G312900100037 0.3 2.9 G312900100038 ENDCOMMON 3 0 G312900100039 ENDSUBENT 38 0 G312900199999 SUBENT G3129002 20180627 G042G312900200001 BIB 3 6 G312900200002 REACTION (58-CE-0(G,X)58-CE-133-M/G,,SIG/RAT,,BRA) G312900200003 DECAY-DATA (58-CE-133-M,4.9HR,DG,130.8,0.179) 9/2- G312900200004 (58-CE-133-G,1.62HR,DG,97.261,0.45) 1/2+ G312900200005 ANALYSIS Contribution of the 97.261 keV gammas from the G312900200006 metastable state was subtracted to obtain the G312900200007 gammas from the ground state. G312900200008 ENDBIB 6 0 G312900200009 NOCOMMON 0 0 G312900200010 DATA 3 3 G312900200011 EN-MAX DATA ERR-T G312900200012 MEV NO-DIM NO-DIM G312900200013 55. 0.324 0.089 G312900200014 60. 0.331 0.086 G312900200015 65. 0.403 0.089 G312900200016 ENDDATA 5 0 G312900200017 ENDSUBENT 16 0 G312900299999 SUBENT G3129003 20180627 G042G312900300001 BIB 3 5 G312900300002 REACTION (58-CE-0(G,X)58-CE-137-M/G,,SIG/RAT,,BRA) G312900300003 DECAY-DATA (58-CE-137-M,34.4HR,DG,254.29,0.11) 11/2- G312900300004 (58-CE-137-G,9.HR,DG,447.15,0.018) 3/2+ G312900300005 COMMENT By G.N.Kim (2018-06-27): Nuclear spin of 137gCe in G312900300006 Table 1 is 3/2. G312900300007 ENDBIB 5 0 G312900300008 NOCOMMON 0 0 G312900300009 DATA 3 3 G312900300010 EN-MAX DATA ERR-T G312900300011 MEV NO-DIM NO-DIM G312900300012 55. 0.210 0.062 G312900300013 60. 0.221 0.061 G312900300014 65. 0.262 0.061 G312900300015 ENDDATA 5 0 G312900300016 ENDSUBENT 15 0 G312900399999 ENDENTRY 3 0 G312999999999