ENTRY O1840 20100226 O041O184000000001 SUBENT O1840001 20100226 O041O184000100001 BIB 12 26 O184000100002 TITLE Suppression of fusion by breakup-Resolving the O184000100003 discrepancy between the reactions of Be-9 with Pb-208 O184000100004 and Bi-209. O184000100005 AUTHOR (M.Dasgupta, D.J.Hinde, S.L.Sheehy, B.Bouriquet) O184000100006 REFERENCE (J,PR/C,81,024608,2010) O184000100007 REL-REF (R,A0719001,M.Dasgupta+,J,PR/C,70,024606,2004) The O184000100008 details of the experimental setup O184000100009 INSTITUTE (3AULCBR) Department of Nuclear Physics, O184000100010 PART-DET (A) The cross sections for residues resulting from O184000100011 complete and incomplete fusion were determined by O184000100012 measuring their alpha activity. O184000100013 DETECTOR (SIBAR) Two Si surface barrier detectors, were used to O184000100014 detect elastic scattering for normalization and thus toO184000100015 obtain absolute cross sections. O184000100016 FACILITY (VDGT,3AULCBR) 14UD pelletron. O184000100017 METHOD (ACTIV,REC) Recoiling evaporation residues were stoppedO184000100018 in aluminum catcher foils placed immediately behind theO184000100019 targets. O184000100020 COMMENT *By authors*.Absolute cross sections for both ERs and O184000100021 fission were determined by performing a calibration O184000100022 using a Si-28 beam incident on a Pt-196 target at the O184000100023 subbarrier energy of 92.0 MeV, where the elastic O184000100024 scattering is described by Rutherford scattering at allO184000100025 angles. O184000100026 ERR-ANALYS (ERR-S).Statistical uncertainty. O184000100027 HISTORY (20100226C)SB O184000100028 ENDBIB 26 0 O184000100029 NOCOMMON 0 0 O184000100030 ENDSUBENT 29 0 O184000199999 SUBENT O1840002 20100226 O041O184000200001 BIB 4 6 O184000200002 REACTION (82-PB-208(4-BE-9,3N)86-RN-214,,SIG) O184000200003 MONITOR (82-PB-208(4-BE-9,EL)82-PB-208,,DA,,RTH) O184000200004 SAMPLE Targets of 208-Pb-S, enriched to >99%, thickness O184000200005 400 mug/cm**2, were backed by 360 mug/cm**2 aluminum O184000200006 catcher foils. O184000200007 STATUS (TABLE).Table 1. O184000200008 ENDBIB 6 0 O184000200009 NOCOMMON 0 0 O184000200010 DATA 3 9 O184000200011 EN-CM DATA ERR-S O184000200012 MEV MB MB O184000200013 42.07 157.4 5.8 O184000200014 42.92 154.9 3.6 O184000200015 45.89 89.1 2.7 O184000200016 47.84 54.3 2.8 O184000200017 48.80 36.0 1.6 O184000200018 53.58 16.7 1.5 O184000200019 57.43 13.9 1.0 O184000200020 58.33 9.1 1.1 O184000200021 67.03 5.6 1.2 O184000200022 ENDDATA 11 0 O184000200023 ENDSUBENT 22 0 O184000299999 SUBENT O1840003 20100226 O041O184000300001 BIB 4 6 O184000300002 REACTION (82-PB-208(4-BE-9,4N)86-RN-213,,SIG) O184000300003 MONITOR (82-PB-208(4-BE-9,EL)82-PB-208,,DA,,RTH) O184000300004 SAMPLE Targets of 208-Pb-S, enriched to >99%, thickness O184000300005 400 mug/cm**2, were backed by 360 mug/cm**2 aluminum O184000300006 catcher foils. O184000300007 STATUS (TABLE).Table 1. O184000300008 ENDBIB 6 0 O184000300009 NOCOMMON 0 0 O184000300010 DATA 3 9 O184000300011 EN-CM DATA ERR-S O184000300012 MEV MB MB O184000300013 42.07 70.2 2.4 O184000300014 42.92 125. 10. O184000300015 45.89 341. 11. O184000300016 47.84 429. 10. O184000300017 48.80 451. 11. O184000300018 53.58 311. 11. O184000300019 57.43 160.4 4.1 O184000300020 58.33 123. 8. O184000300021 67.03 20.3 3.6 O184000300022 ENDDATA 11 0 O184000300023 ENDSUBENT 22 0 O184000399999 SUBENT O1840004 20100226 O041O184000400001 BIB 5 7 O184000400002 REACTION (82-PB-208(4-BE-9,5N)86-RN-212,,SIG) O184000400003 MONITOR (82-PB-208(4-BE-9,EL)82-PB-208,,DA,,RTH) O184000400004 SAMPLE Targets of 208-Pb-S, enriched to >99%, thickness O184000400005 400 mug/cm**2, were backed by 360 mug/cm**2 aluminum O184000400006 catcher foils. O184000400007 FLAG (1.).Data from REL-REF(see subent 001). O184000400008 STATUS (TABLE).Table 1. O184000400009 ENDBIB 7 0 O184000400010 NOCOMMON 0 0 O184000400011 DATA 4 7 O184000400012 EN-CM DATA ERR-S FLAG O184000400013 MEV MB MB NO-DIM O184000400014 45.89 7.8 0.8 1. O184000400015 47.84 27.7 4.1 O184000400016 48.80 57. 4. 1. O184000400017 53.58 366. 9. O184000400018 57.43 587. 9. O184000400019 58.33 622. 14. O184000400020 67.03 310. 8. O184000400021 ENDDATA 9 0 O184000400022 ENDSUBENT 21 0 O184000499999 SUBENT O1840005 20100226 O041O184000500001 BIB 5 7 O184000500002 REACTION (82-PB-208(4-BE-9,6N)86-RN-211,,SIG) O184000500003 MONITOR (82-PB-208(4-BE-9,EL)82-PB-208,,DA,,RTH) O184000500004 SAMPLE Targets of 208-Pb-S, enriched to >99%, thickness O184000500005 400 mug/cm**2, were backed by 360 mug/cm**2 aluminum O184000500006 catcher foils. O184000500007 FLAG (1.).Extrapolated data. O184000500008 STATUS (TABLE).Table 1. O184000500009 ENDBIB 7 0 O184000500010 NOCOMMON 0 0 O184000500011 DATA 4 4 O184000500012 EN-CM DATA ERR-S FLAG O184000500013 MEV MB MB NO-DIM O184000500014 53.58 3.5 2.0 1. O184000500015 57.43 27.7 2.3 O184000500016 58.33 55. 6. O184000500017 67.03 519. 59. O184000500018 ENDDATA 6 0 O184000500019 ENDSUBENT 18 0 O184000599999 SUBENT O1840006 20100226 O041O184000600001 BIB 5 10 O184000600002 REACTION (82-PB-208(4-BE-9,F),,SIG) O184000600003 DETECTOR (MWPC) Fission following fusion was measured during theO184000600004 irradiations using two large area (28.4X35.7cm**2) two O184000600005 multi-wire proportional counters. O184000600006 SAMPLE Targets of 208-Pb-S, enriched to >99%, thickness O184000600007 400 mug/cm**2, were backed by 360 mug/cm**2 aluminum O184000600008 catcher foils. O184000600009 FLAG (1.).Data from REL-REF(see subent 001). O184000600010 (2.).Interpolated from REL-REF(see subent 001). O184000600011 STATUS (TABLE).Table 1. O184000600012 ENDBIB 10 0 O184000600013 NOCOMMON 0 0 O184000600014 DATA 4 9 O184000600015 EN-CM DATA ERR-S FLAG O184000600016 MEV MB MB NO-DIM O184000600017 42.07 1.38 0.03 O184000600018 42.92 2.02 0.05 2. O184000600019 45.89 6.15 0.06 O184000600020 47.84 9.70 0.06 O184000600021 48.80 12.8 0.09 1. O184000600022 53.58 34.8 0.2 O184000600023 57.43 55.48 0.15 O184000600024 58.33 69.1 0.3 O184000600025 67.03 166.6 0.6 O184000600026 ENDDATA 11 0 O184000600027 ENDSUBENT 26 0 O184000699999 SUBENT O1840007 20100226 O041O184000700001 BIB 3 10 O184000700002 REACTION (82-PB-208(4-BE-9,FUS),,SIG) O184000700003 SAMPLE Targets of 208-Pb-S, enriched to >99%, thickness O184000700004 400 mug/cm**2, were backed by 360 mug/cm**2 aluminum O184000700005 catcher foils. O184000700006 STATUS (TABLE).Table 1. O184000700007 (DEP,O1840002) (9Be,3n) cross section O184000700008 (DEP,O1840003) (9Be,4n) cross section O184000700009 (DEP,O1840004) (9Be,5n) cross section O184000700010 (DEP,O1840005) (9Be,6n) cross section O184000700011 (DEP,O1840006) (9Be,f) cross section O184000700012 ENDBIB 10 0 O184000700013 NOCOMMON 0 0 O184000700014 DATA 3 9 O184000700015 EN-CM DATA ERR-S O184000700016 MEV MB MB O184000700017 42.07 229. 6. O184000700018 42.92 282. 11. O184000700019 45.89 444. 11. O184000700020 47.84 521. 11. O184000700021 48.80 557. 12. O184000700022 53.58 732. 14. O184000700023 57.43 845. 10. O184000700024 58.33 878. 17. O184000700025 67.03 1022. 60. O184000700026 ENDDATA 11 0 O184000700027 ENDSUBENT 26 0 O184000799999 SUBENT O1840008 20100226 O041O184000800001 BIB 4 5 O184000800002 REACTION (83-BI-209(4-BE-9,2N)87-FR-216,,SIG) O184000800003 MONITOR (83-BI-209(4-BE-9,EL)83-BI-209,,DA,,RTH) O184000800004 SAMPLE Target of Bi-209, thickness 120 mug/cm**2, were backed O184000800005 by 360 mug/cm**2 aluminum catcher foils. O184000800006 STATUS (TABLE).Table 2. O184000800007 ENDBIB 5 0 O184000800008 NOCOMMON 0 0 O184000800009 DATA 3 1 O184000800010 EN-CM DATA ERR-S O184000800011 MEV MB MB O184000800012 42.15 5.9 2.3 O184000800013 ENDDATA 3 0 O184000800014 ENDSUBENT 13 0 O184000899999 SUBENT O1840009 20100226 O041O184000900001 BIB 4 5 O184000900002 REACTION (83-BI-209(4-BE-9,3N)87-FR-215,,SIG) O184000900003 MONITOR (83-BI-209(4-BE-9,EL)83-BI-209,,DA,,RTH) O184000900004 SAMPLE Target of Bi-209, thickness 120 mug/cm**2, were backed O184000900005 by 360 mug/cm**2 aluminum catcher foils. O184000900006 STATUS (TABLE).Table 2. O184000900007 ENDBIB 5 0 O184000900008 NOCOMMON 0 0 O184000900009 DATA 3 3 O184000900010 EN-CM DATA ERR-S O184000900011 MEV MB MB O184000900012 42.15 173. 6. O184000900013 47.91 72.6 4.2 O184000900014 57.50 5.7 1.5 O184000900015 ENDDATA 5 0 O184000900016 ENDSUBENT 15 0 O184000999999 SUBENT O1840010 20100226 O041O184001000001 BIB 4 5 O184001000002 REACTION (83-BI-209(4-BE-9,4N)87-FR-214,,SIG) O184001000003 MONITOR (83-BI-209(4-BE-9,EL)83-BI-209,,DA,,RTH) O184001000004 SAMPLE Target of Bi-209, thickness 120 mug/cm**2, were backed O184001000005 by 360 mug/cm**2 aluminum catcher foils. O184001000006 STATUS (TABLE).Table 2. O184001000007 ENDBIB 5 0 O184001000008 NOCOMMON 0 0 O184001000009 DATA 3 3 O184001000010 EN-CM DATA ERR-S O184001000011 MEV MB MB O184001000012 42.15 48.1 2.6 O184001000013 47.91 423. 11. O184001000014 57.50 191. 6. O184001000015 ENDDATA 5 0 O184001000016 ENDSUBENT 15 0 O184001099999 SUBENT O1840011 20100226 O041O184001100001 BIB 4 5 O184001100002 REACTION (83-BI-209(4-BE-9,5N)87-FR-213,,SIG) O184001100003 MONITOR (83-BI-209(4-BE-9,EL)83-BI-209,,DA,,RTH) O184001100004 SAMPLE Target of Bi-209, thickness 120 mug/cm**2, were backed O184001100005 by 360 mug/cm**2 aluminum catcher foils. O184001100006 STATUS (TABLE).Table 2. O184001100007 ENDBIB 5 0 O184001100008 NOCOMMON 0 0 O184001100009 DATA 3 2 O184001100010 EN-CM DATA ERR-S O184001100011 MEV MB MB O184001100012 47.91 8.6 1.4 O184001100013 57.50 490.2 12. O184001100014 ENDDATA 4 0 O184001100015 ENDSUBENT 14 0 O184001199999 SUBENT O1840012 20100226 O041O184001200001 BIB 4 5 O184001200002 REACTION (83-BI-209(4-BE-9,6N)87-FR-212,,SIG) O184001200003 MONITOR (83-BI-209(4-BE-9,EL)83-BI-209,,DA,,RTH) O184001200004 SAMPLE Target of Bi-209, thickness 120 mug/cm**2, were backed O184001200005 by 360 mug/cm**2 aluminum catcher foils. O184001200006 STATUS (TABLE).Table 2. O184001200007 ENDBIB 5 0 O184001200008 NOCOMMON 0 0 O184001200009 DATA 3 1 O184001200010 EN-CM DATA ERR-S O184001200011 MEV MB MB O184001200012 57.50 10.2 2.5 O184001200013 ENDDATA 3 0 O184001200014 ENDSUBENT 13 0 O184001299999 SUBENT O1840013 20100226 O041O184001300001 BIB 4 7 O184001300002 REACTION (83-BI-209(4-BE-9,F),,SIG) O184001300003 DETECTOR (MWPC) Fission following fusion was measured during theO184001300004 irradiations using two large area (28.4X35.7cm**2) two O184001300005 multi-wire proportional counters. O184001300006 SAMPLE Target of Bi-209, thickness 120 mug/cm**2, were backed O184001300007 by 360 mug/cm**2 aluminum catcher foils. O184001300008 STATUS (TABLE).Table 2. O184001300009 ENDBIB 7 0 O184001300010 NOCOMMON 0 0 O184001300011 DATA 3 3 O184001300012 EN-CM DATA ERR-S O184001300013 MEV MB MB O184001300014 42.15 8.53 0.09 O184001300015 47.91 45.71 0.23 O184001300016 57.50 190.4 0.6 O184001300017 ENDDATA 5 0 O184001300018 ENDSUBENT 17 0 O184001399999 SUBENT O1840014 20100226 O041O184001400001 BIB 3 10 O184001400002 REACTION (83-BI-209(4-BE-9,FUS),,SIG) O184001400003 SAMPLE Target of Bi-209, thickness 120 mug/cm**2, were backed O184001400004 by 360 mug/cm**2 aluminum catcher foils. O184001400005 STATUS (TABLE).Table 2. O184001400006 (DEP,O1840008) (9Be,2n) cross section O184001400007 (DEP,O1840009) (9Be,3n) cross section O184001400008 (DEP,O1840010) (9Be,4n) cross section O184001400009 (DEP,O1840011) (9Be,5n) cross section O184001400010 (DEP,O1840012) (9Be,6n) cross section O184001400011 (DEP,O1840013) (9Be,f) cross section O184001400012 ENDBIB 10 0 O184001400013 NOCOMMON 0 0 O184001400014 DATA 3 3 O184001400015 EN-CM DATA ERR-S O184001400016 MEV MB MB O184001400017 42.15 236. 7. O184001400018 47.91 550. 12. O184001400019 57.50 887. 14. O184001400020 ENDDATA 5 0 O184001400021 ENDSUBENT 20 0 O184001499999 ENDENTRY 14 0 O184099999999