ENTRY 23041 20120120 Y0082304100000001 SUBENT 23041001 20120120 Y0082304100100001 BIB 14 38 2304100100002 TITLE .First measurements of the total and partial stellar 2304100100003 cross section to the s-process branching-point 79Se 2304100100004 AUTHOR (I.Dillmann, M.Heil, F.Kaeppeler, T.Faestermann, 2304100100005 G.Korschinek, K.Knie, M.Poutivtsev, G.Rugel, A.Wallner,2304100100006 T.Rauscher) 2304100100007 INSTITUTE (2GERKFK) Forschungszentrum Karlsruhe, Institut fuer 2304100100008 Kernphysik, Karlsruhe. I.Dillmann, E-mail: 2304100100009 iris.dillmann@ik.fzk.de; M.Heil, F.Kaeppeler. 2304100100010 (2SWTBAS) Departement Physik und Astronomie, Universi- 2304100100011 taet Basel, Basel. I Dillmann, T.Rauscher 2304100100012 (2GERMUN) Fakultat fur Physik, Technische Universitaet 2304100100013 Muenchen, Garching. T.Faestermann, G.Korschinek, 2304100100014 K.Knie, M.Poutivtsev, G.Rugel 2304100100015 (2AUSIRK) Vienna Environmental Research Accelerator, 2304100100016 Institut fuer Isotopenforschung und Kernphysik, 2304100100017 Universitaet Wien. A.Wallner 2304100100018 REFERENCE (C,2006CERN,,(089),200606) Main reference, data given. 2304100100019 FACILITY (VDG,2GERKFK) Karlsruhe 3.7 MV Van de Graaff. 2304100100020 For samples irradiation 2304100100021 INC-SOURCE (P-LI7) 30 micrometer thick layer of metallic Lithium 2304100100022 on the copper backing, proton energy is 1912keV, 2304100100023 30 keV above reaction threshold, proton current 2304100100024 100 micro-A. 2304100100025 INC-SPECT .Nearly Maxwellian energy spectrum for kT=25+-0.5 keV 2304100100026 with maximum neutron energy 108 keV. The neutron flux 2304100100027 is kinematically collimated in a forward cone with 1202304100100028 degree opening angle. Mean neutron flux is (1.5-2)E+9 2304100100029 neutron/sec at the position of sample 2304100100030 DETECTOR (GLASD) Li-6 scintillation detector for neutron flux 2304100100031 time-dependence monitoring 2304100100032 METHOD (STTA) Stack target irradiation 2304100100033 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 2304100100034 MONIT-REF (,W.RATYNSKI+,J,PR/C,37,595,1988) 2304100100035 ERR-ANALYS (DATA-ERR) Error is not specified 2304100100036 CORRECTION .Correction was made for the number of Se-79 nuclei 2304100100037 HISTORY (20090108C) S.M. 2304100100038 (20090911U) S.M. Reference corrected 2304100100039 (20120120A) NDS(VZ): REL-REF: ND/B->NDS in 002 2304100100040 ENDBIB 38 0 2304100100041 NOCOMMON 0 0 2304100100042 ENDSUBENT 41 0 2304100199999 SUBENT 23041002 20120120 Y0082304100200001 BIB 11 18 2304100200002 REACTION (34-SE-78(N,G)34-SE-79-M,,SIG,,MXW) At kT-30 keV 2304100200003 ANALYSIS .Extrapolated from Z.Bao data AT 25 keV, see REL-REF 2304100200004 REL-REF (R,,Z.BAO+,J,AND,76,70,2000) Cs at 25 keV 2304100200005 (R,,B.Singh,J,NDS,96,1,2000) Half-life of Se-79-m 2304100200006 METHOD (GSPEC) Gamma spectroscopy 2304100200007 DETECTOR (HPGE) 2304100200008 SAMPLE .Selenium metal sample with natural isotopic abundance 2304100200009 - 23.77% of Se-78 pressed in thin pellets inclosed in 2304100200010 15 micro-meter thick Al foil and sandwiched between 2304100200011 10-30 micro-m thick gold foils 2304100200012 DECAY-DATA (34-SE-79-M,3.72MIN,DG,95.7,0.0962) 2304100200013 ADD-RES (DECAY) Determined half-life of the isomer is 2304100200014 3.90 +- 0.14 min 2304100200015 ERR-ANALYS (ERR-HL) Error of Se-79-m half-life 2304100200016 (ERR-IDD) Error of Se-79-m decay intensity 2304100200017 STATUS .From text of main reference, p.4 2304100200018 (PRELM) By the authors 2304100200019 HISTORY (20120120A) NDS(VZ): REL-REF: ND/B->NDS 2304100200020 ENDBIB 18 0 2304100200021 NOCOMMON 0 0 2304100200022 DATA 5 1 2304100200023 KT DATA DATA-ERR ERR-HL ERR-IDD 2304100200024 KEV MB MB MIN NO-DIM 2304100200025 30. 42.0 2.0 0.1 0.0028 2304100200026 ENDDATA 3 0 2304100200027 ENDSUBENT 26 0 2304100299999 SUBENT 23041003 20090108 22062304100300001 BIB 9 13 2304100300002 REACTION (34-SE-78(N,G)34-SE-79,,SIG,,MXW) 2304100300003 METHOD (MASSP) Accelerator mass spectroscopy - AMS 2304100300004 FACILITY (VDGT,2GERMUN) For AMS measurements 2304100300005 ANALYSIS .Extrapolated from Z.Bao data AT 25 keV, see REL-REF 2304100300006 SAMPLE .Cadmium-selenide Cd-Se with natural isotopic abundance2304100300007 - 23.77% of Se-78 pressed in thin pellets inclosed in 2304100300008 15 micro-meter thick Al foil and sandwiched between 2304100300009 10-30 micro-m thick gold foils 2304100300010 REL-REF (R,,Z.BAO+,J,AND,76,70,2000) Cs at 25 keV 2304100300011 DETECTOR (IOCH) Multu-deltaE ionization chamber 2304100300012 CORRECTION .Correction was made for contaminating Br-79 nucleus 2304100300013 STATUS .From text of main reference, p.4 2304100300014 (PRELM) By the authors 2304100300015 ENDBIB 13 0 2304100300016 NOCOMMON 0 0 2304100300017 DATA 3 1 2304100300018 KT DATA DATA-ERR 2304100300019 KEV MB MB 2304100300020 30. 60.1 9.6 2304100300021 ENDDATA 3 0 2304100300022 ENDSUBENT 21 0 2304100399999 SUBENT 23041004 20090108 22062304100400001 BIB 3 6 2304100400002 REACTION (34-SE-78(N,G)34-SE-79-M/T,,SIG/RAT,,MXW,DERIV) 2304100400003 REL-REF (R,,Z.BAO+,J,AND,76,70,2000) Cs at 25 keV 2304100400004 STATUS .From text of main reference, page 4 2304100400005 (PRELM) By the authors 2304100400006 (DEP,23041002) 2304100400007 (DEP,23041003) 2304100400008 ENDBIB 6 0 2304100400009 NOCOMMON 0 0 2304100400010 DATA 3 2 2304100400011 KT DATA DATA-ERR 2304100400012 EV NO-DIM NO-DIM 2304100400013 2.5E-02 0.88 0.06 2304100400014 3.0E+04 0.70 0.11 2304100400015 ENDDATA 4 0 2304100400016 ENDSUBENT 15 0 2304100499999 ENDENTRY 4 0 2304199999999