ENTRY C1516 20070305 C080C151600000001 SUBENT C1516001 20070305 C080C151600100001 BIB 12 53 C151600100002 INSTITUTE (1USABRK,1USALRL) C151600100003 REFERENCE (J,PR/C,75,015802,2007) C151600100004 AUTHOR (M.S.Basunia,H.A.Shugart,A.R.Smith,E.B.Norman) C151600100005 TITLE Measurement of cross sections for a-induced reactions C151600100006 on 197Au and thick-target yields for the (a,g) C151600100007 process on 64Zn and 63Cu C151600100008 FACILITY (CYCLO,1USABRK) 88 In. Cyclotron at Lawrence Berkeley C151600100009 National Laboratory (LBNL). C151600100010 INC-SPECT Gold, zinc, and copper targets were bombarded with an C151600100011 alpha-beam (He+) C151600100012 Sample Energy Current Irradiation time Total charge C151600100013 (MeV) (microA) (hours) (microC+/-5%) C151600100014 Au stack 24.0+/-0.3 1 6 20963 C151600100015 18.0+/-0.2 0.7 5 10221 C151600100016 Zn 14.0+/-0.2 0.1 0.62 203 C151600100017 10.0+/-0.1 0.6 1 2158 C151600100018 8.8+/-0.1 1.5 2 10774 C151600100019 7.9+/-0.1 1.5 4 20783 C151600100020 7.0+/-0.1 1.8 7.08 33465 C151600100021 Cu 7.0+/-0.1 1.4 1.25 6381 C151600100022 SAMPLE The foils were mounted on circular aluminum holders. C151600100023 Two stacks were prepared with each having four gold C151600100024 targets interspaced by three aluminum foils of C151600100025 thickness about 7mg/cm2. A titanium sheet of C151600100026 0.016 in. thickness was placed at the end of each C151600100027 stack. The target stacks were mounted on a thick C151600100028 water-cooled copper block. C151600100029 The gold foil contained 99.9% gold, 0.03% silver, C151600100030 0.05% copper, and a few other trace elements. C151600100031 DETECTOR (GE) Samples were counted with an HPGe detector C151600100032 immediately following the irradiation and later with C151600100033 another HPGe detector. The second HPGe detector was C151600100034 located at LBNL's Low Background Facility (LBF). C151600100035 MONITOR The titanium sheet was used to measure the C151600100036 thick-target yield for the 48Ti(a,n)51Cr reaction. C151600100037 The measured yield was used to verify the beam C151600100038 current integration C151600100039 DECAY-DATA (81-TL-201,72.912HR,DG,167.43) C151600100040 (81-TL-200,26.1HR,DG,367.94) C151600100041 (81-TL-199,7.42HR,DG,208.2) C151600100042 (32-GE-68,270.82D) C151600100043 (31-GA-68,67.629MIN,DG,1077.35) C151600100044 (31-GA-67,3.2612D,DG,184.58) C151600100045 ERR-ANALYS (ERR-T) See below C151600100046 Sources of uncertainty Magnitude (%) C151600100047 Foil thickness 3 C151600100048 Beam current 2 C151600100049 Net count 3-20 C151600100050 Decay data about 1, except Ig (208) = 10.6 C151600100051 Recoiled fraction 1 C151600100052 Detector peak efficiency 5 C151600100053 HPGe surface counting position about 3 C151600100054 HISTORY (20070305C) DR C151600100055 ENDBIB 53 0 C151600100056 NOCOMMON 0 0 C151600100057 ENDSUBENT 56 0 C151600199999 SUBENT C1516002 20070305 C080C151600200001 BIB 2 2 C151600200002 REACTION (79-AU-197(A,G)81-TL-201,,SIG) C151600200003 STATUS (TABLE) Data taken from Table 4 C151600200004 ENDBIB 2 0 C151600200005 NOCOMMON 0 0 C151600200006 DATA 4 4 C151600200007 EN EN-ERR DATA ERR-T C151600200008 MEV MEV MB MB C151600200009 23.9 0.2 0.038 0.007 C151600200010 22.2 0.4 0.030 0.006 C151600200011 20.4 0.4 0.018 0.003 C151600200012 17.9 0.2 0.004 0.001 C151600200013 ENDDATA 6 0 C151600200014 ENDSUBENT 13 0 C151600299999 SUBENT C1516003 20070305 C080C151600300001 BIB 2 2 C151600300002 REACTION (79-AU-197(A,N)81-TL-200,,SIG) C151600300003 STATUS (TABLE) Data taken from Table 4 C151600300004 ENDBIB 2 0 C151600300005 NOCOMMON 0 0 C151600300006 DATA 4 7 C151600300007 EN EN-ERR DATA ERR-T C151600300008 MEV MEV MB MB C151600300009 23.9 0.2 30. 5. C151600300010 22.2 0.4 43. 6. C151600300011 20.4 0.4 36. 5. C151600300012 18.6 0.4 7.2 1.1 C151600300013 17.9 0.2 5.5 0.8 C151600300014 15.8 0.3 0.13 0.02 C151600300015 13.4 0.3 0.05 0.03 C151600300016 ENDDATA 9 0 C151600300017 ENDSUBENT 16 0 C151600399999 SUBENT C1516004 20070305 C080C151600400001 BIB 2 2 C151600400002 REACTION (79-AU-197(A,2N)81-TL-199,,SIG) C151600400003 STATUS (TABLE) Data taken from Table 4 C151600400004 ENDBIB 2 0 C151600400005 NOCOMMON 0 0 C151600400006 DATA 4 5 C151600400007 EN EN-ERR DATA ERR-T C151600400008 MEV MEV MB MB C151600400009 23.9 0.2 562. 98. C151600400010 22.2 0.4 332. 58. C151600400011 20.4 0.4 71. 13. C151600400012 18.6 0.4 1.7 0.4 C151600400013 17.9 0.2 0.28 0.07 C151600400014 ENDDATA 7 0 C151600400015 ENDSUBENT 14 0 C151600499999 SUBENT C1516005 20070305 C080C151600500001 BIB 2 2 C151600500002 REACTION (30-ZN-64(A,G)32-GE-68,,MLT,,TT) C151600500003 STATUS (TABLE) Data taken from Table 5 C151600500004 ENDBIB 2 0 C151600500005 NOCOMMON 0 0 C151600500006 DATA 4 5 C151600500007 EN EN-ERR DATA ERR-T C151600500008 MEV MEV PRT/INC PRT/INC C151600500009 14.0 0.2 8.5 0.8 C151600500010 10.0 0.1 1.3 0.1 C151600500011 8.8 0.1 3.9 0.3 C151600500012 7.9 0.1 1.2 0.1 C151600500013 7.0 0.1 2.2 0.2 C151600500014 ENDDATA 7 0 C151600500015 ENDSUBENT 14 0 C151600599999 SUBENT C1516006 20070305 C080C151600600001 BIB 2 2 C151600600002 REACTION (29-CU-63(A,G)31-GA-67,,MLT,,TT) C151600600003 STATUS (TABLE) Data taken from Table 5 C151600600004 ENDBIB 2 0 C151600600005 NOCOMMON 0 0 C151600600006 DATA 4 1 C151600600007 EN EN-ERR DATA ERR-T C151600600008 MEV MEV PRT/INC PRT/INC C151600600009 7.0 0.1 2.2 0.2 C151600600010 ENDDATA 3 0 C151600600011 ENDSUBENT 10 0 C151600699999 ENDENTRY 6 0 C151699999999