ENTRY 22907 20160430 22492290700000001 SUBENT 22907001 20160430 22492290700100001 BIB 17 62 2290700100002 TITLE Stellar neutron capture cross sections of the Lu and 2290700100003 Hf isotopes 2290700100004 AUTHOR (K.Wisshak,F.Voss,F.Kaeppeler,L.Kazakov,M.Krticka) 2290700100005 INSTITUTE (2GERKFK) Wisshak, Voss, Kaeppeler 2290700100006 (4RUSFEI) Kazakov 2290700100007 (3CZRCHU) Krticka 2290700100008 REFERENCE (C,2004SANTA,2,1315,2004) 2290700100009 (R,FZKA-6961,2004) Lu isotopes data. 2290700100010 (R,FZKA-6962,2004) Hf isotopes data. 2290700100011 REL-REF (I,,K.Wisshak+,J,NIM/A,292,595,1990) Description of 2290700100012 the 4piBaF2 detector 2290700100013 FACILITY (VDG,2GERKFK) 3.7-MV Van de Graaff accelerator. 2290700100014 INC-SOURCE (P-LI7) Metallic Li target bombarded by a pulsed 2290700100015 proton beam, pulse rate 250 kHz, pulse width 2290700100016 less than 1 nanosec, average beam current 2.0 mu-A 2290700100017 METHOD (TOF) Flight path is 79 cm 2290700100018 (GSPEC) 2290700100019 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 2290700100020 INC-SPECT .Proton beam energy adjusted so to be 30 and 100 KeV 2290700100021 above the 7-Li(p,n)7-Be reaction threshold 1.881 MeV. 2290700100022 In this way, continuous neutron spectra in the proper 2290700100023 energy range for S-process studies were obtained, 2290700100024 ranging from 3 to 100 and from 3 to 225 keV. 2290700100025 SAMPLE .The samples were prepared from isotopically enriched 2290700100026 oxide powder-Lu2-O3 and Hf-O2 canned in the aluminum 2290700100027 boxes. Samples were heated to 1200 degree K for 2290700100028 15-min to eliminate any water contaminations. During 2290700100029 the final heating the pellets shrank slightly. 2290700100030 Immediately after cooling, the actual samples were 2290700100031 prepared by canning the pellets into air tight 2290700100032 aluminum cylinders with 0.2-mm thick walls. 2290700100033 .Apart from the two lutetium or five hafnium samples, a2290700100034 gold sample in an identical can was used for measuring2290700100035 the neutron flux, and an empty can served for 2290700100036 determining the sample-independent background. 2290700100037 ADD-RES (COMP).The CASINO/GEANT version of the MONTE CARLO code2290700100038 were used for simulations of experimental setup. 2290700100039 Available from Apostolakis J., CERN, GEANT library, 2290700100040 www.cern.ch . 2290700100041 DETECTOR (D4PI). The Karlsruhe 4pi-Barium-Fluoride detector via 2290700100042 the prompt gamma-rays consisting of 42 hexa- 2290700100043 and penta-gonal crystals forming a spherical shell 2290700100044 of Ba-F2 with 10 cm inner radius and 15 cm thickness 2290700100045 The energy resolution of the individual crystals were 2290700100046 normalized by means of actual spectra and equal to 2290700100047 7.% at 2.5MeV gamma energy, time resolution 500 ps 2290700100048 STATUS (TABLE) .Data are taken from Tbl.1 of 2004SANTA,2,1315.2290700100049 (SPSDD,22917001) 2290700100050 COMMENT *By authors*.The experimental cross sections were 2290700100051 converted into absolute values using the gold cross 2290700100052 section from literature. The final results for the 2290700100053 stellar cross sections at kt=30-KeV are summarized in 2290700100054 table1. 2290700100055 ERR-ANALYS (DATA-ERR).The uncertainty as reported by authors in 2290700100056 table 1. Errors not specified 2290700100057 HISTORY (20051022C) 2290700100058 (20051031U) Last corrections have been done. 2290700100059 (20131219A) SD: Subents 2-8 were superseded according 2290700100060 to author's remark (Dr.F.Kaeppeler). Ref. on NIM/A,2922290700100061 moved to REL-REF. 2290700100062 (20160429A) M.M. Refs. FZKA-6961 and FZKA-6962 were 2290700100063 added. 2290700100064 ENDBIB 62 0 2290700100065 COMMON 1 3 2290700100066 EN-MEAN 2290700100067 KEV 2290700100068 45. 2290700100069 ENDCOMMON 3 0 2290700100070 ENDSUBENT 69 0 2290700199999 SUBENT 22907002 20131219 22382290700200001 BIB 2 2 2290700200002 REACTION (71-LU-175(N,G)71-LU-176,,SIG,,MXW) 2290700200003 STATUS (SPSDD,22917010) 2290700200004 ENDBIB 2 0 2290700200005 NOCOMMON 0 0 2290700200006 DATA 2 1 2290700200007 DATA DATA-ERR 2290700200008 MB MB 2290700200009 1219. 10. 2290700200010 ENDDATA 3 0 2290700200011 ENDSUBENT 10 0 2290700299999 SUBENT 22907003 20131219 22382290700300001 BIB 2 2 2290700300002 REACTION (71-LU-176(N,G)71-LU-177,,SIG,,MXW) 2290700300003 STATUS (SPSDD,22917011) 2290700300004 ENDBIB 2 0 2290700300005 NOCOMMON 0 0 2290700300006 DATA 2 1 2290700300007 DATA DATA-ERR 2290700300008 MB MB 2290700300009 1639. 14. 2290700300010 ENDDATA 3 0 2290700300011 ENDSUBENT 10 0 2290700399999 SUBENT 22907004 20131219 22382290700400001 BIB 2 2 2290700400002 REACTION (72-HF-176(N,G)72-HF-177,,SIG,,MXW) 2290700400003 STATUS (SPSDD,22926019) 2290700400004 ENDBIB 2 0 2290700400005 NOCOMMON 0 0 2290700400006 DATA 2 1 2290700400007 DATA DATA-ERR 2290700400008 MB MB 2290700400009 625.5 11. 2290700400010 ENDDATA 3 0 2290700400011 ENDSUBENT 10 0 2290700499999 SUBENT 22907005 20131219 22382290700500001 BIB 2 2 2290700500002 REACTION (72-HF-177(N,G)72-HF-178,,SIG,,MXW) 2290700500003 STATUS (SPSDD,22926020) 2290700500004 ENDBIB 2 0 2290700500005 NOCOMMON 0 0 2290700500006 DATA 2 1 2290700500007 DATA DATA-ERR 2290700500008 MB MB 2290700500009 1544. 12. 2290700500010 ENDDATA 3 0 2290700500011 ENDSUBENT 10 0 2290700599999 SUBENT 22907006 20131219 22382290700600001 BIB 2 2 2290700600002 REACTION (72-HF-178(N,G)72-HF-179,,SIG,,MXW) 2290700600003 STATUS (SPSDD,22926021) 2290700600004 ENDBIB 2 0 2290700600005 NOCOMMON 0 0 2290700600006 DATA 2 1 2290700600007 DATA DATA-ERR 2290700600008 MB MB 2290700600009 318.8 2.7 2290700600010 ENDDATA 3 0 2290700600011 ENDSUBENT 10 0 2290700699999 SUBENT 22907007 20131219 22382290700700001 BIB 2 2 2290700700002 REACTION (72-HF-179(N,G)72-HF-180,,SIG,,MXW) 2290700700003 STATUS (SPSDD,22926022) 2290700700004 ENDBIB 2 0 2290700700005 NOCOMMON 0 0 2290700700006 DATA 2 1 2290700700007 DATA DATA-ERR 2290700700008 MB MB 2290700700009 922.4 8.4 2290700700010 ENDDATA 3 0 2290700700011 ENDSUBENT 10 0 2290700799999 SUBENT 22907008 20131219 22382290700800001 BIB 2 2 2290700800002 REACTION (72-HF-180(N,G)72-HF-181,,SIG,,MXW) 2290700800003 STATUS (SPSDD,22926023) 2290700800004 ENDBIB 2 0 2290700800005 NOCOMMON 0 0 2290700800006 DATA 2 1 2290700800007 DATA DATA-ERR 2290700800008 MB MB 2290700800009 156.5 1.9 2290700800010 ENDDATA 3 0 2290700800011 ENDSUBENT 10 0 2290700899999 ENDENTRY 8 0 2290799999999