ENTRY 22687 20131117 22382268700000001 SUBENT 22687001 20131117 22382268700100001 BIB 17 81 2268700100002 TITLE Measurements of thermal neutron capture cross section 2268700100003 and resonance integral of the 166mHo(n,gamma)167Ho 2268700100004 reaction using a two-step irradiation technique 2268700100005 AUTHOR (T.Katoh, S.Nakamura, K.Furutaka, H.Wada, H.Harada, 2268700100006 T.Baba, T.Fujii, H.Yamana) 2268700100007 INSTITUTE (2JPNJNC) Nakamura, Katoh, Furutaka, Wada,Harada,Baba 2268700100008 (2JPNGMT) Katoh 2268700100009 (2JPNKTO) Fujii, Yamana, and experimental site 2268700100010 REFERENCE (J,NST,39,(7),705,200207) Main reference, data and 2268700100011 error structure are given 2268700100012 (J,NSTS,2,(1),258,200208) Data given for 90Sr,166m-Ho 2268700100013 REL-REF (M,,H.Harada+,J,NST,32,395,1995) The details of the 2268700100014 data acquisition system 2268700100015 FACILITY (REAC,2JPNKTO) Kyoto University reactor 2268700100016 METHOD (ACTIV) Activation 2268700100017 (SITA) Single-target irradiation 2268700100018 (GSPEC) 2268700100019 DETECTOR (NAICR) Detector performance is characterized by the 2268700100020 relative efficiency of 90% to a 7.6 cm thick 2268700100021 and 7.6 cm in diameter Na-I(Tl) detector and 2268700100022 an energy resolution 2.1 keV full width at 2268700100023 half-maximum at the 1.33 MeV peak of 60Co 2268700100024 MONITOR ((MONIT1)27-CO-59(N,G)27-CO-60,,SIG) 2268700100025 ((MONIT2)79-AU-197(N,G)79-AU-198,,SIG) 2268700100026 DECAY-MON (27-CO-60-G,5.271YR,DG,1173.,0.9990, 2268700100027 DG,1333.,0.9998) 2268700100028 (79-AU-198-G,2.695D,DG,412.,0.955) 2268700100029 DECAY-DATA (67-HO-166-M,1200.YR) 2268700100030 (67-HO-166-G,26.83HR) 2268700100031 (67-HO-167,3.003HR,B-,,, 2268700100032 DG,321.,0.235, 2268700100033 DG,347.,0.56) Half-life and 2268700100034 gamma intensities are measured in this work. 2268700100035 Hl=3.003+-0.018 hr, intens(321)=0.235+-0.051 2268700100036 intens(347)=0.56+-0.12 2268700100037 ADD-RES (DECAY) Half-life of Ho-167 was measured 2268700100038 INC-SPECT .Samples were irradiated with and without cadmium 2268700100039 shield. Because 59Co and 197Au have different sensi- 2268700100040 tivities to thermal and epithermal neutrons, monitor 2268700100041 wires allow to determine the thermal and epithermal 2268700100042 fractions of neutron flux 2268700100043 SAMPLE .Monitor samples are cobalt/aluminium and gold/ 2268700100044 aluminium wires which were used to monitor neutron 2268700100045 flux at the target positions 2268700100046 -Co/Al alloy(Co 0.46wt%, 0,381 mm in diameter), 2268700100047 Au/Al alloy (Au-0.112wt%,0,510 mm diam) 2268700100048 .Ho-166-m is generated from the stable monoisotope 2268700100049 Ho-165 by irradiation in reactor. Four samples were 2268700100050 prepared. Thickness of each is 0.0125 mm, purity 2268700100051 is 99.9%, weighs 0.0944, 0.1203, 0.1165, 0.1030 mg. 2268700100052 1st irradiation of the foils was performed at the long2268700100053 irradiation plug of (KURRI) for 2 and 3 weeks. 2268700100054 The second irradiation of the target was performed in 2268700100055 a hydraulic transfer tube of Kyoto University reactor 2268700100056 for 10 hours with and without cadmium capsule. 2268700100057 ERR-ANALYS (ERR-T) Total error composed of particular ones 2268700100058 given below 2268700100059 (ERR-S,,0.5) Max stat. Error for the gamma-ray 2268700100060 measurement of the holmium samples 2268700100061 (ERR-1) Error of the gamma-ray full energy peak 2268700100062 efficiency resulting from the uncertainty of 2268700100063 the calibration source 2268700100064 (ERR-2) Error of the detection efficiency of the 2268700100065 detector due to the ambiguity of the 2268700100066 geometrical setting of the targets 2268700100067 (ERR-3) Error in the measurement of the neutron flux 2268700100068 (ERR-4) Error due to the variation of the neutron 2268700100069 flux 2268700100070 (ERR-5) Error in the absolute intensity of gamma-rays2268700100071 (ERR-6) Error in the measurements of sample weights 2268700100072 (ERR-7,,1.) Max stat. error for the gamma-ray 2268700100073 measurement of the monitor wires 2268700100074 STATUS (TABLE) .Data are taken from the NST,39,(7),705 2268700100075 HISTORY (20021219C) Compiled, J.O.S. 2268700100076 (20040324A) Two subents deleted due to repetition 2268700100077 in entry 22679. Units corrected. 2268700100078 (20040328U) EN-NRM added 2268700100079 (20090218A) Data in subent 004 corrected and new 2268700100080 subent 007 added 2268700100081 (20131117U) SD: Ref. on Conf. abstract deleted. 2268700100082 ERR-ANALYS updated. Minor corrections. 2268700100083 ENDBIB 81 0 2268700100084 COMMON 11 6 2268700100085 EN-NRM MONIT1 MONIT1-ERR MONIT2 MONIT2-ERR ERR-1 2268700100086 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 2268700100087 EV B B B B PER-CENT 2268700100088 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2268700100089 2.53E-02 37.18 0.06 98.65 0.09 3.2268700100090 1.5 2.4 1.5 21. 0.2 2268700100091 ENDCOMMON 6 0 2268700100092 ENDSUBENT 91 0 2268700199999 NOSUBENT 22687002 20040617 00002268700200001 NOSUBENT 22687003 20040617 00002268700300001 SUBENT 22687004 20090218 22082268700400001 BIB 4 5 2268700400002 REACTION (67-HO-166-M(N,G)67-HO-167,,SIG,,MXW) 2268700400003 REL-REF (A,22642002,H.HARADA+,J,NST,37,821,2000) 2268700400004 (D,41123000,S.MASYANOV+,J,AE,73,154,1992) 2268700400005 STATUS (COREL,22642002) 2268700400006 HISTORY (20090218A) Data table corrected 2268700400007 ENDBIB 5 0 2268700400008 NOCOMMON 0 0 2268700400009 DATA 3 1 2268700400010 EN-MEAN DATA ERR-T 2268700400011 EV KB KB 2268700400012 0.0253 4.02 1.05 2268700400013 ENDDATA 3 0 2268700400014 ENDSUBENT 13 0 2268700499999 SUBENT 22687005 20040328 00002268700500001 BIB 3 5 2268700500002 REACTION (67-HO-166-M(N,G)67-HO-167,,RI) 2268700500003 REL-REF (A,22642002,H.HARADA+,J,NST,37,821,2000) 2268700500004 (D,,S.M.MASYANOV+,J,AE,73,154,1992) 2268700500005 STATUS (DEP,22687004) 2268700500006 (DEP,22687006) 2268700500007 ENDBIB 5 0 2268700500008 NOCOMMON 0 0 2268700500009 DATA 3 1 2268700500010 EN-MIN DATA ERR-T 2268700500011 EV KB KB 2268700500012 0.5 10. 2.7 2268700500013 ENDDATA 3 0 2268700500014 ENDSUBENT 13 0 2268700599999 SUBENT 22687006 20040328 00002268700600001 BIB 2 3 2268700600002 REACTION (67-HO-166-M(N,G)67-HO-167,,RI,,RNV) Non-1/V part of 2268700600003 the resonance integral 2268700600004 STATUS .From table 8 of main reference 2268700600005 ENDBIB 3 0 2268700600006 NOCOMMON 0 0 2268700600007 DATA 3 1 2268700600008 EN-MIN DATA ERR-T 2268700600009 EV KB KB 2268700600010 0.5 6.6 1.8 2268700600011 ENDDATA 3 0 2268700600012 ENDSUBENT 11 0 2268700699999 SUBENT 22687007 20090218 22082268700700001 BIB 4 5 2268700700002 REACTION (67-HO-166-M(N,G)67-HO-167,,SIG) 2268700700003 REL-REF (A,22642002,H.HARADA+,J,NST,37,821,2000) 2268700700004 (D,41123000,S.MASYANOV+,J,AE,73,154,1992) 2268700700005 STATUS (COREL,22642002) 2268700700006 HISTORY (20090218A) Data at thermal energy added 2268700700007 ENDBIB 5 0 2268700700008 NOCOMMON 0 0 2268700700009 DATA 3 1 2268700700010 EN DATA ERR-T 2268700700011 EV KB KB 2268700700012 0.0253 3.11 0.82 2268700700013 ENDDATA 3 0 2268700700014 ENDSUBENT 13 0 2268700799999 ENDENTRY 7 0 2268799999999