ENTRY 22835 20170403 22612283500000001 SUBENT 22835001 20170403 22612283500100001 BIB 17 68 2283500100002 TITLE Measurement of the thermal neutron cross section and 2283500100003 resonance integral of the 237Np(n,gamma)238Np 2283500100004 reaction 2283500100005 AUTHOR (T.Katoh,S.Nakamura,K.Furutaka,H.Harada, K.Fujiwara, 2283500100006 T.Fujii,H.Yamana) 2283500100007 INSTITUTE (2JPNJNC) Nakamura, Furutaka, Harada, Nuclear Cycle 2283500100008 Development Dept. 2283500100009 (2JPNKTO) Fujiwara, Fujii, Yamana, Research Reactor 2283500100010 Institute. Experimental site 2283500100011 (2JPNGMT) T.Katoh, Gifu College of Medical Technologies2283500100012 REFERENCE (J,NST,40,559,2003) Main reference 2283500100013 (S,JAERI-C-2005-003,121,2005) the same result 2283500100014 REL-REF (M,22295001,H.Harada+,J,NST,32,395,1995) Exp.details 2283500100015 FACILITY (REAC,2JPNKTO) Kyoto University reactor KURRI 2283500100016 DETECTOR (HPGE) High purity germanium detector, relative 2283500100017 efficiency 90% relative to 7.6*7.6 cm2 Na-I(Tl) 2283500100018 detector. Energy resolution 2.1 keV at 1.33 MeV peak 2283500100019 of Co-60 2283500100020 METHOD (ACTIV) Activation 2283500100021 (GSPEC) Gamma spectrum analysis 2283500100022 MONITOR ((MONIT1)27-CO-59(N,G)27-CO-60,,SIG) 2283500100023 ((MONIT2)79-AU-197(N,G)79-AU-198,,SIG) 2283500100024 DECAY-MON (27-CO-60-G,5.271YR,DG,1173.,0.9990, 2283500100025 DG,1333.,0.9998) 2283500100026 (79-AU-198-G,2.695D,DG,412.,0.995) 2283500100027 SAMPLE .Fourteen samples were prepared by dropping of a 1 kBq 2283500100028 25 microliters of Np-237 solution in H-N-O3 each on a 2283500100029 quartz plate (1 cm)*(2 cm)*(2 mm) and drying it to 2283500100030 a circle of 7 mm diameter 2283500100031 .Gold monitor sample is Au-Al wire alloy, Au 0.112 wt%,2283500100032 0.51 mm diameter 2283500100033 .Cobalt monitor sample is Co-Al wire alloy, 2283500100034 Co 0.46 wt%, 0.381 mm diameter 2283500100035 INC-SOURCE (REAC) 2283500100036 INC-SPECT .Thermal neutron energy spectrum 2283500100037 Epithermal neutrons taken into account 2283500100038 DECAY-DATA (93-NP-237,2.144E+06YR,A) 2283500100039 (93-NP-238,2.117D,DG,984.45,0.278, 2283500100040 DG,1025.87,0.096, 2283500100041 DG,1028.54,0.203) 2283500100042 (91-PA-233,26.967D,DG,300.34,0.0662, 2283500100043 DG,312.17,0.386, 2283500100044 DG,340.81,0.447) 2283500100045 ADD-RES (G-SPC) 2283500100046 ERR-ANALYS (ERR-T) Total error 2283500100047 (ERR-1) Error in the gamma-ray total peak efficiency 2283500100048 (ERR-2) Error in the detection efficiency 2283500100049 (ERR-3) Error due to neutron flux uncertainty caused 2283500100050 by Co and Au nuclear data errors 2283500100051 (ERR-4) Error due to variation of the neutron flux 2283500100052 (ERR-5) Error in the half-life of Np-237 2283500100053 (ERR-6) Error in the half-life of Np-238 2283500100054 (ERR-7) Error in the emission probability of 312 keV 2283500100055 gamma-line of Pa-233 2283500100056 (ERR-8) Error in the emission probability of Np-237 2283500100057 (ERR-S,,0.5) Statistical error of the gamma 2283500100058 measurements of the sample 2283500100059 (DATA-ERR,,1.0) Statistical error of the gamma 2283500100060 measurements of the monitors 2283500100061 HISTORY (20040628C) + + JOS 2283500100062 (20060204U) Corrected SM 2283500100063 (20151003A) SD: REL-REF added to Subent 002 following 2283500100064 N.Otsuka's remark. ERR-ANALYS update. 2283500100065 (20160915A) SD: Data from priv. comm. deleted from 2283500100066 Subent 002 following remark from N.Otsuka. 2283500100067 (20170403A) SD: Ref. (JAERI-C-2005-003) was added. 2283500100068 Data from Table 10 of NST,40,559,2003 were added to 2283500100069 Subents 002-004. 2283500100070 ENDBIB 68 0 2283500100071 COMMON 12 6 2283500100072 MONIT1 MONIT1-ERR MONIT2 MONIT2-ERR ERR-1 ERR-2 2283500100073 ERR-3 ERR-4 ERR-5 ERR-6 ERR-7 ERR-8 2283500100074 B B B B PER-CENT PER-CENT 2283500100075 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2283500100076 37.18 0.06 98.65 0.09 3.0 1.52283500100077 1.8 1.5 0.5 0.1 1.0 3.02283500100078 ENDCOMMON 6 0 2283500100079 ENDSUBENT 78 0 2283500199999 SUBENT 22835002 20170403 22612283500200001 BIB 4 12 2283500200002 REACTION 1(93-NP-237(N,G)93-NP-238,,SIG,,RAW) - not corrected 2283500200003 for reduction of neutrons at the 0.49 eV resonance 2283500200004 2(93-NP-237(N,G)93-NP-238,,SIG) 2283500200005 REL-REF (C,22977001,H.Harada+,J,NST,43,1289,2006) Renormalized 2283500200006 value 168+/-6 b given 2283500200007 STATUS (TABLE) From Tables 8, 10 of NST,40,559,2003 2283500200008 HISTORY (20060204U) SF8 erased, EN-MEAN to EN changed 2283500200009 DATA-ERR changed to ERR-T 2283500200010 (20151003A) SD: REL-REF added following N.Otsuka remark2283500200011 Value from priv. comm. changed on value from the Tbl.82283500200012 (20170402A) SD: SF8=RAW was added to REACTION (1) code.2283500200013 REACTION (2) was added from Table 10 from NST,40,559. 2283500200014 ENDBIB 12 0 2283500200015 NOCOMMON 0 0 2283500200016 DATA 5 1 2283500200017 EN DATA 1ERR-T 1DATA 2ERR-T 2 2283500200018 EV B B B B 2283500200019 2.53E-02 144.1 5.4 141.7 5.4 2283500200020 ENDDATA 3 0 2283500200021 ENDSUBENT 20 0 2283500299999 SUBENT 22835003 20170403 22612283500300001 BIB 3 11 2283500300002 REACTION 1(93-NP-237(N,G)93-NP-238,,RI,,RAW) - not corrected 2283500300003 for reduction of neutrons at the 0.49 eV resonance 2283500300004 2(93-NP-237(N,G)93-NP-238,,RI) 2283500300005 STATUS (TABLE) From Tables 8, 10 of NST,40,559,2003 2283500300006 HISTORY (20060204A) Data added for pointer 2 2283500300007 DATA-ERR changed to ERR-T 2283500300008 (20160915A) SD: Data from priv. comm. deleted following2283500300009 remark from N.Otsuka ('No reason to keep the priv.comm.2283500300010 data received before its final publication'). 2283500300011 (20170402A) SD: SF8=RAW was added to REACTION (1) code.2283500300012 REACTION (2) was added from Table 10 from NST,40,559. 2283500300013 ENDBIB 11 0 2283500300014 NOCOMMON 0 0 2283500300015 DATA 5 1 2283500300016 EN-MIN DATA 1ERR-T 1DATA 2ERR-T 2 2283500300017 EV B B B B 2283500300018 0.358 799. 50. 862. 51. 2283500300019 ENDDATA 3 0 2283500300020 ENDSUBENT 19 0 2283500399999 SUBENT 22835004 20170403 22612283500400001 BIB 3 10 2283500400002 REACTION 1(93-NP-237(N,G)93-NP-238,,RI,,RNV/RAW) Non 1/v part of 2283500400003 the resonance integral; not corrected for reduction 2283500400004 of neutrons at the 0.49 eV resonance 2283500400005 2(93-NP-237(N,G)93-NP-238,,RI,,RNV) Non 1/v part of 2283500400006 the resonance integral 2283500400007 STATUS (TABLE) From Tables 8, 10 of NST,40,559,2003 2283500400008 HISTORY (20060204C) SM 2283500400009 (20170402A) SD: SF8=RAW was added to REACTION (1) code.2283500400010 REACTION (2) was added. Data were added from Table 10 2283500400011 from NST,40,559. 2283500400012 ENDBIB 10 0 2283500400013 NOCOMMON 0 0 2283500400014 DATA 5 1 2283500400015 EN-MIN DATA 1ERR-T 1DATA 2ERR-T 2 2283500400016 EV B B B B 2283500400017 0.358 722. 49. 787. 50. 2283500400018 ENDDATA 3 0 2283500400019 ENDSUBENT 18 0 2283500499999 ENDENTRY 4 0 2283599999999