ENTRY 20247 20170425 22612024700000001 SUBENT 20247001 20170425 22612024700100001 BIB 12 31 2024700100002 INSTITUTE (2SWDCTH) 2024700100003 REFERENCE (J,PS,4,89,1971) 2024700100004 AUTHOR (S.E.Arnell, R.Hardell, A.Hasselgren, C.-G.Mattsson, 2024700100005 O.Skeppstedt) 2024700100006 TITLE Thermal neutron capture in Ti-50 and Ni-64 2024700100007 FACILITY (REAC,2SWDCTH) One MV heavy water reactor, R1. 2024700100008 INC-SOURCE (REAC) Thermal neutron flux 3.x 10**12 n/cm2/sec. 2024700100009 METHOD .Gamma ray detected with Ge(Li)-spectrometer 2024700100010 in pair spectrometer mode and anticoincidence mode. 2024700100011 DETECTOR (BPAIR,GELI,NAICR) Staff-shaped Ge(Li) detector, 2024700100012 vol. 3.1 cm3 and NaI annular crystal as pair 2024700100013 spectrometer arrangement, above the pair production 2024700100014 threshold. (An annulus of NaI, 15 cm in diam. and 2024700100015 10 cm long with a hole 4 cm in diam. surrounded the 2024700100016 Ge(Li)-detector.). 2024700100017 .Relative efficiency of Ge(Li) pair spectrometer was 2024700100018 calculated using composite spectrum. 2024700100019 .For the measurement of low energy gamma-rays, the same2024700100020 NaI crystals were used in anticoincidence mantle. 2024700100021 Furthermore a NaI-crystal, 12.5 cm in diam. and 10 cm 2024700100022 long with a hole 1.8 cm in diam. was placed in front 2024700100023 of the NaI-annulus to detect backscattered radiation. 2024700100024 CORRECTION .Corrected for recoil. 2024700100025 PART-DET (G) Gammas. 2024700100026 ERR-ANALYS (DATA-ERR,10.,100.) Errors in relative intensities are 2024700100027 estimated to about 10% for strong lines and increase 2024700100028 successively to about 100% for weak lines. 2024700100029 HISTORY (19720601C) 2024700100030 (20170425A) SD:Updated to new date formats,lower case. 2024700100031 Syntax in author's list corrected. Corrections in all 2024700100032 Subents. 2024700100033 ENDBIB 31 0 2024700100034 COMMON 1 3 2024700100035 EN-DUMMY 2024700100036 MEV 2024700100037 2.5300E-08 2024700100038 ENDCOMMON 3 0 2024700100039 ENDSUBENT 38 0 2024700199999 SUBENT 20247002 20170425 22612024700200001 BIB 6 25 2024700200002 REACTION (22-TI-50(N,G)22-TI-51,,SPC,,SPA) 2024700200003 SAMPLE Enriched titanium in the form of oxide was 400 mg. 2024700200004 Due to the small contribution of 51Ti to the spectrum 2024700200005 from the enriched sample a natural titanium sample 2024700200006 was also used. 2024700200007 Isotopic compositions (atomic %): 2024700200008 Isotope Natural sample Enriched sample 2024700200009 46 7.93 2.0+-0.1 2024700200010 47 7.28 1.8+-0.1 2024700200011 48 73.94 17.8+-0.2 2024700200012 49 5.51 2.0+-0.l 2024700200013 50 5.34 6.4+-0.2 2024700200014 ANALYSIS .The absolute intensity values in photons/100 neutron 2024700200015 captures were obtained by normalizing the sum of the 2024700200016 primary gamma rays to 100. 2024700200017 .in the low energy anticoincidence spectrum, the 2024700200018 intensity of 1167 keV line was normalized to 320 keV 2024700200019 line from decay of Ti-51 (see FLAG). 2024700200020 FLAG (1.) normalized to the 320 keV line from the 5.8 min 2024700200021 decay of 51Ti to 51V, the intensity of which 2024700200022 was set equal to 95.09%. 2024700200023 STATUS (TABLE) Table III from Phys.Scr.,4(1971)89. 2024700200024 HISTORY (20170425A) SD: GAM/100N -> PC/INC in DATA section. 2024700200025 Free text in BIB section update. Meaningless zeros were2024700200026 deleted from the values.MONITOR -> ANALYSIS. FLAG added2024700200027 ENDBIB 25 0 2024700200028 NOCOMMON 0 0 2024700200029 DATA 4 9 2024700200030 E E-RSL DATA FLAG 2024700200031 MEV MEV PC/INC NO-DIM 2024700200032 1.1666 0.0004 41.7 1. 2024700200033 2.1989 0.0010 17.3 2024700200034 2.9043 0.0010 5.3 2024700200035 3.1746 0.0010 8.3 2024700200036 3.1974 0.0010 9.9 2024700200037 3.4667 0.0010 29.0 2024700200038 4.1738 0.0010 21.5 2024700200039 5.2061 0.0010 35.4 2024700200040 6.3735 0.0010 4.2 2024700200041 ENDDATA 11 0 2024700200042 ENDSUBENT 41 0 2024700299999 SUBENT 20247003 20170425 22612024700300001 BIB 6 17 2024700300002 REACTION (28-NI-64(N,G)28-NI-65,,SPC,,SPA) 2024700300003 SAMPLE (28-NI-64,ENR=0.9790) Composition 97.9% enriched Ni-64.2024700300004 ANALYSIS .The absolute intensity values in photons/100 neutron 2024700300005 captures were obtained by normalizing the sum of the 2024700300006 primary gamma rays to 100. 2024700300007 .in the low energy anticoincidence spectrum, the 2024700300008 intensity of 1107 keV line was normalized to 1482 keV 2024700300009 line from decay of Ni-65 (see FLAG). 2024700300010 FLAG (1.) In the low energy anticoincidence spectrum the 2024700300011 absolute intensity of the 1 107 keV line was normalized2024700300012 to the 1482 keV line from the 2.5 h decay of 66Ni to 2024700300013 65Cu the intensity of which was set equal to 24.8% 2024700300014 STATUS (TABLE) Data from Phys.Scr.,4(1971)89. 2024700300015 HISTORY (20170425A) SD: GAM/100N -> PC/INC in DATA section. 2024700300016 Free text in BIB section update. Meaningless zeros were2024700300017 deleted from the values. E-RSL moved to COMMON. 2024700300018 MONITOR -> ANALYSIS. FLAG added. 2024700300019 ENDBIB 17 0 2024700300020 COMMON 1 3 2024700300021 E-RSL 2024700300022 MEV 2024700300023 0.0010 2024700300024 ENDCOMMON 3 0 2024700300025 DATA 3 14 2024700300026 E DATA FLAG 2024700300027 MEV PC/INC NO-DIM 2024700300028 0.3102 29.1 2024700300029 0.6290 8.7 2024700300030 0.6926 1.6 2024700300031 1.1081 5.3 1. 2024700300032 1.3460 2.5 2024700300033 2.0827 0.9 2024700300034 2.4005 0.6 2024700300035 3.3876 0.8 2024700300036 3.7736 0.4 2024700300037 3.9519 1.2 2024700300038 4.6810 3.8 2024700300039 5.4057 8.9 2024700300040 5.7882 18.6 2024700300041 6.0351 66.8 2024700300042 ENDDATA 16 0 2024700300043 ENDSUBENT 42 0 2024700399999 ENDENTRY 3 0 2024799999999