ENTRY O1940 20111011 O046O194000000001 SUBENT O1940001 20111011 O046O194000100001 BIB 11 56 O194000100002 TITLE Sub-barrier fusion of He-6 with Pb-206. O194000100003 AUTHOR (R.Wolski, I.Martel, L.Standylo, L.Acosta, O194000100004 J.L.Aguado, C.Angulo, R.Berjillos, J.P.Bolivar, O194000100005 J.A.Duenas, M.S.Golovkov, T.Keutgen, M.Mazzocco, O194000100006 A.Padilla, A.M.Sanchez-Benitez, C.Signorini, O194000100007 M.Romoli, K.Rusek) O194000100008 INSTITUTE (3POLIFJ) Henryk Niewodniczanski Institute of Nuclear O194000100009 Physics PAS, Cracow, Poland O194000100010 (2SPNSPN) University of Huelva, Huelva, Spain. O194000100011 2.Instituto de Estructura de la Materia, O194000100012 CSIC, E-28006, Madrid, Spain. O194000100013 (4ZZZDUB) O194000100014 (3POLIPJ) O194000100015 (2BLGLVN) O194000100016 (2ITYPAD) O194000100017 (2ITYNAP) O194000100018 REFERENCE (J,EPJ/A,47,111,2011) O194000100019 FACILITY (CYCLO,2BLGLVN) O194000100020 INC-SOURCE The He-6 beam was produced by the Li-7(p,2p)He-6 O194000100021 reaction in a LiF powder target with a graphite O194000100022 container. O194000100023 SAMPLE Two different types of target were used in the present O194000100024 experiment. O194000100025 Targets of Type I were a layer of enriched more than O194000100026 97% Pb-206 metal of 0.50+-0.05 mg/cm**2 thickness O194000100027 evaporated on a 40 mug/cm**2 thin Carbon foil. O194000100028 According to TRIM calculation the thickness of the O194000100029 Carbon backing was sufficient to stop the fusion O194000100030 produced Po-210 evaporation residues. O194000100031 Targets of Type II were made by depositing a disk- O194000100032 shaped layer 15 mm diameter of 206PbS compound on O194000100033 1.5 mum thick Ti foils. The material used was of O194000100034 enrichment more than 95%, effective 206Pb thickness of O194000100035 around 1 mg/cm**2. The Ti foils served as beam energy O194000100036 degraders. O194000100037 DETECTOR (SPEC) Charged particles emitted by the scattering O194000100038 target were detected by the large area Si multi- O194000100039 detector system LEDA. One LEDA array is an annular O194000100040 detector consisting of 8 sectors, each having 16 stripsO194000100041 of 10 mm width. Forward and backward scattering angles O194000100042 were covered by 2 LAMP(The removal of two sectors from O194000100043 LEDA assembly enables the remaining sectors to be O194000100044 arranged as a six-sided cone-colloquially know as O194000100045 the LAMP configuration) sets of 5 LEDA sectors each. O194000100046 METHOD (ACTIV) O194000100047 (STTA) O194000100048 (CHSEP) All irradiated samples were subjected to a O194000100049 chemical processing, known amounts of 209Pb tracer wereO194000100050 added, Po material extracted and induced alpha- O194000100051 radioactivity measured at Huelva University. The totalO194000100052 stack thickness and a beam energy spread were measured O194000100053 in a special experimental run of a low beam intensity. O194000100054 STATUS (TABLE).Tables were received from Dr.R.Wolski O194000100055 for fig.5,6 of J,EPJ/A,47,111,2011 10.10.2011 O194000100056 (APRVD).By Dr.R.Wolski O194000100057 HISTORY (20111011C) SB O194000100058 ENDBIB 56 0 O194000100059 NOCOMMON 0 0 O194000100060 ENDSUBENT 59 0 O194000199999 SUBENT O1940002 20111011 O046O194000200001 BIB 4 13 O194000200002 REACTION (82-PB-206(2-HE-6,2N)84-PO-210,,SIG) O194000200003 REL-REF (D,A0850001,S.M.Lukyanov+,J,PL/B,670,321,2009) O194000200004 ERR-ANALYS (EN-ERR).Errors is reported by authors. O194000200005 (DATA-ERR).Errors is reported by authors. O194000200006 COMMENT *By author*.Experimental data for the 206Pb(6He,2n) O194000200007 evaporation channel cross-section, uncorrected on the O194000200008 beam energy spread. O194000200009 *By authors*.To determine the reaction cross-section O194000200010 of interest, sigma(2n) at E(lab)= 18 MeV, the product O194000200011 of the total integrated projectile flux bombarding the O194000200012 scattering target and its density was obtained by O194000200013 normalizing the elastic scattering count rate to O194000200014 Rutherford scattering. O194000200015 ENDBIB 13 0 O194000200016 NOCOMMON 0 0 O194000200017 DATA 4 6 O194000200018 EN-CM EN-ERR DATA DATA-ERR O194000200019 MEV MEV MB MB O194000200020 17.4546 0.0370 38.07139 3.57871 O194000200021 17.3643 0.0380 37.42421 8.28161 O194000200022 16.7229 0.2000 4.914120 1.22007 O194000200023 15.9261 0.2300 3.359010 1.30942 O194000200024 15.0759 0.2300 1.618510 0.64381 O194000200025 14.1139 0.2800 0.400490 0.34149 O194000200026 ENDDATA 8 0 O194000200027 ENDSUBENT 26 0 O194000299999 ENDENTRY 2 0 O194099999999