ENTRY 10910 20210827 14911091000000001 SUBENT 10910001 20210827 14911091000100001 BIB 14 49 1091000100002 TITLE Energy levels below 2 MeV in 121Sb and 123Sb 1091000100003 AUTHOR (H.R.Hooper,P.W.Green,H.E.Siefken,G.C.Neilson, 1091000100004 W.J.McDonald,D.M.Sheppard,W.K.Dawson) 1091000100005 REFERENCE (J,PR/C,20,2041,1979) 1091000100006 #doi:10.1103/PhysRevC.20.2041 1091000100007 REL-REF (M,,J.M.Davidson+,J,NIM,134,291,1976) Small-sample 1091000100008 technique description. 1091000100009 INSTITUTE (1CANALA) 1091000100010 FACILITY (ACCEL,1CANALA) 1091000100011 INC-SOURCE (P-T) Neutrons were produced in a 3H(p,n) 3He 1091000100012 reaction using a proton beam pulsed every 500 ns with 1091000100013 a width of 10 ns. The average beam current was 0.7 1091000100014 microA, with typical runs requiring an accumulated 1091000100015 charge of 10 mC per angle. The target consisted of 1091000100016 tritium absorbed at about a 1:1 atomic ratio in a 1091000100017 3.27 mg/cm2 layer of metallic erbium deposited on a 1091000100018 tantalum backing. 1091000100019 DETECTOR (GELI) Gamma-rays detected by 2 Ge(Li) detectors, 50 1091000100020 cm from scatterer. 1091000100021 (SCIN) Neutron flux monitored by NE213 liquid 1091000100022 scintillator. 1091000100023 SAMPLE The neutron scatterer consisted of a cylinder of 1091000100024 natural Sb powder (57.2% 121Sb, 42.8% 123Sb) of 1091000100025 height 1.59 cm, radius 0. 8l cm, and mass 13.5 g, and 1091000100026 was contained in a thin-walled nylon tube. The 1091000100027 scatterer was aligned axially with the beam at a 1091000100028 distance of 0. 8 cm from the neutron production target.1091000100029 METHOD Gamma-ray angular distributions were determined using 1091000100030 the small-sample technique of Davidson et al. 1091000100031 Gamma-ray excitation curves were measured in order to 1091000100032 select the appropriate neutron bombarding energies 1091000100033 for the angular distribution measurements. The 1091000100034 energies were chosen so that there was no appreciable 1091000100035 feeding from higher excited states. Maximum neutron 1091000100036 energies ranged from 1.5 to 2.7 MeV. The energy 1091000100037 spread of the neutron beam due to the target 1091000100038 thickness was typically 150 keV. 1091000100039 ERR-ANALYS (DATA-ERR) No comprehensive explanation of 1091000100040 uncertaities. 1091000100041 (ERR-1) Uncertainties in branching ratios are about 4%.1091000100042 COMMENT Compiler's comment: Data are given vs. cosine**2, to 1091000100043 accommodate EXFOR rules cosine values were calculated. 1091000100044 STATUS (APRVD) G.M.T.Tratt, 83/9/6. 1091000100045 HISTORY (19821221C) 1091000100046 (19830907U) BIB update. 1091000100047 (20210827A) BP: Updated to new date formats, lower 1091000100048 case. Corrections according last EXFOR rules and 1091000100049 Dict. Updated entry, added doi, SAMPLE, ERR-ANALYS, 1091000100050 digitized data. 1091000100051 ENDBIB 49 0 1091000100052 COMMON 3 3 1091000100053 EN-MIN EN-MAX ERR-1 1091000100054 MEV MEV PER-CENT 1091000100055 1.5 2.7 4.0 1091000100056 ENDCOMMON 3 0 1091000100057 ENDSUBENT 56 0 1091000199999 SUBENT 10910002 20210827 14911091000200001 BIB 3 3 1091000200002 REACTION (51-SB-121(N,INL)51-SB-121,PAR,DA,G,REL) 1091000200003 STATUS (CURVE) Fig. 6, page 2048. 1091000200004 HISTORY (20210827A) BP: Digitized data. 1091000200005 ENDBIB 3 0 1091000200006 NOCOMMON 0 0 1091000200007 DATA 5 18 1091000200008 E-LVL-INI E-LVL-FIN COS DATA DATA-ERR 1091000200009 KEV KEV NO-DIM ARB-UNITS ARB-UNITS 1091000200010 1025.0 0.0 0.000 3540.652 114.842 1091000200011 1025.0 0.0 0.422 3484.658 111.129 1091000200012 1025.0 0.0 0.645 3291.481 81.490 1091000200013 1025.0 0.0 0.764 3191.070 81.444 1091000200014 1025.0 0.0 0.906 3009.005 81.472 1091000200015 1025.0 0.0 1.000 2938.205 74.064 1091000200016 1036.0 37.0 0.000 1390.069 73.898 1091000200017 1036.0 37.0 0.420 1238.989 76.854 1091000200018 1036.0 37.0 0.644 1037.539 106.381 1091000200019 1036.0 37.0 0.764 1001.744 91.632 1091000200020 1036.0 37.0 0.911 924.416 73.862 1091000200021 1036.0 37.0 1.000 666.940 70.943 1091000200022 1145.0 37.0 0.000 855.788 77.306 1091000200023 1145.0 37.0 0.414 945.277 109.731 1091000200024 1145.0 37.0 0.643 750.360 97.269 1091000200025 1145.0 37.0 0.760 503.205 99.756 1091000200026 1145.0 37.0 0.906 627.488 89.781 1091000200027 1145.0 37.0 1.000 470.090 84.800 1091000200028 ENDDATA 20 0 1091000200029 ENDSUBENT 28 0 1091000299999 SUBENT 10910003 20210827 14911091000300001 BIB 3 3 1091000300002 REACTION (51-SB-123(N,INL)51-SB-123,PAR,DA,G,REL) 1091000300003 STATUS (CURVE) Fig. 7, page 2049. 1091000300004 HISTORY (20210827A) BP: Digitized data. 1091000300005 ENDBIB 3 0 1091000300006 COMMON 2 3 1091000300007 E-LVL-INI E-LVL-FIN 1091000300008 KEV KEV 1091000300009 1030. 0.0 1091000300010 ENDCOMMON 3 0 1091000300011 DATA 3 6 1091000300012 COS DATA DATA-ERR 1091000300013 NO-DIM ARB-UNITS ARB-UNITS 1091000300014 0.0632 1511.857 59.830 1091000300015 0.429 1438.090 70.870 1091000300016 0.650 1403.771 72.461 1091000300017 0.766 1219.748 67.720 1091000300018 0.908 1150.783 67.712 1091000300019 1.000 1278.585 69.287 1091000300020 ENDDATA 8 0 1091000300021 ENDSUBENT 20 0 1091000399999 ENDENTRY 3 0 1091099999999