ENTRY C1703 20170403 C166C170300000001 SUBENT C1703001 20170403 C166C170300100001 BIB 10 37 C170300100002 TITLE Comparison of reactions for the production of 258, C170300100003 257Db: 208Pb(51V,xn) and 209Bi(50Ti,xn) C170300100004 AUTHOR (J.M.Gates,S.L.Nelson,K.E.Gregorich,I.Dragojevic, C170300100005 Ch.E.Dullmann,P.A.Ellison,C.M.Folden III,M.A.Garcia, C170300100006 L.Stavsetra,R.Sudowe,D.C.Hoffman,H.Nitsche) C170300100007 REFERENCE (J,PR/C,78,034604,2008) C170300100008 #doi:10.1103/PhysRevC.78.034604 C170300100009 INSTITUTE (1USABRK,1USAUCX) C170300100010 FACILITY (CYCLO,1USABRK) Lawrence Berkeley National Laboratory C170300100011 88-Inch Cyclotron with the Gas-filled Separator (BGS). C170300100012 PART-DET (A) C170300100013 DETECTOR (SISD,MWPC) Si strip detectors and multiwire C170300100014 proportional counter (MWPC). C170300100015 METHOD (ASPEC,REC) Cross sections were deduced from the C170300100016 count of alpha-decay chains. Dubnium compound C170300100017 nucleus evaporation residues are formed with the C170300100018 momentum of the projectile and recoil from the C170300100019 target. After separation in the BGS, the dubnium C170300100020 recoils passed through a multiwire proportional C170300100021 counter (MWPC) and were implanted into a focal plane C170300100022 detector (FPD). The FPD was composed of an C170300100023 implantation detector and an upstream detector. The C170300100024 implantation detector consisted of three silicon C170300100025 cards, each containing 16 vertical strips that C170300100026 allowed for determination of the horizontal position. C170300100027 Energy was calibrated using a four-point alpha source C170300100028 containing 148Gd, 239Pu, 241Am, and 244Cm. Events C170300100029 identified as alpha particles were required to be C170300100030 anticoincident with the MWPC and punch-through C170300100031 detectors, in the same strip as and within a vertical C170300100032 position of +-3 sigma of the evaporation residue. C170300100033 ERR-ANALYS (ERR-S) Error bars represent the uncertainties due to C170300100034 counting statistics and are presented at the 1 sigma C170300100035 level. C170300100036 (EN-ERR) Systematic uncertainty in the absolute energy C170300100037 from the 88-Inch Cyclotron is estimated to be ~1%. C170300100038 HISTORY (20170403C) BP C170300100039 ENDBIB 37 0 C170300100040 COMMON 1 3 C170300100041 EN-ERR C170300100042 PER-CENT C170300100043 1. C170300100044 ENDCOMMON 3 0 C170300100045 ENDSUBENT 44 0 C170300199999 SUBENT C1703002 20170403 C166C170300200001 BIB 3 8 C170300200002 REACTION (82-PB-208(23-V-51,N)105-DB-258,,SIG) C170300200003 SAMPLE (82-PB-208,ENR=0.984) C170300200004 (82-PB-207,ENR=0.011) C170300200005 (82-PB-206,ENR=0.005) Targets consisted of metallic C170300200006 208Pb deposited on 35-microg/cm2 natC backings to C170300200007 a thickness of 470 microg/cm2. The Pb layer was C170300200008 covered with 5-10-microg/cm2 natC. C170300200009 STATUS (TABLE) Table I, page 034604-4. C170300200010 ENDBIB 8 0 C170300200011 NOCOMMON 0 0 C170300200012 DATA 5 6 C170300200013 EN DATA +ERR-S -ERR-S DATA-MAX C170300200014 MEV PB PB PB PB C170300200015 236.1 230.0 520.0 190.0 C170300200016 239.7 2070.0 1100.0 760.0 C170300200017 244.1 1000.0 460.0 330.0 C170300200018 247.2 570.0 550.0 310.0 C170300200019 250.8 590.0 C170300200020 255.0 180.0 C170300200021 ENDDATA 8 0 C170300200022 ENDSUBENT 21 0 C170300299999 SUBENT C1703003 20170403 C166C170300300001 BIB 3 8 C170300300002 REACTION (82-PB-208(23-V-51,2N)105-DB-257,,SIG) C170300300003 SAMPLE (82-PB-208,ENR=0.984) C170300300004 (82-PB-207,ENR=0.011) C170300300005 (82-PB-206,ENR=0.005) Targets consisted of metallic C170300300006 208Pb deposited on 35-microg/cm2 natC backings to C170300300007 a thickness of 470microg/cm2. The Pb layer was C170300300008 covered with 5-10-microg/cm2 natC. C170300300009 STATUS (TABLE) Table I, page 034604-4. C170300300010 ENDBIB 8 0 C170300300011 NOCOMMON 0 0 C170300300012 DATA 5 6 C170300300013 EN DATA +ERR-S -ERR-S DATA-MAX C170300300014 MEV PB PB PB PB C170300300015 236.1 180.0 C170300300016 239.7 240.0 C170300300017 244.1 250.0 170.0 110.0 C170300300018 247.2 1660.0 450.0 370.0 C170300300019 250.8 1400.0 600.0 430.0 C170300300020 255.0 130.0 130.0 70.0 C170300300021 ENDDATA 8 0 C170300300022 ENDSUBENT 21 0 C170300399999 SUBENT C1703004 20170403 C166C170300400001 BIB 3 4 C170300400002 REACTION (83-BI-209(22-TI-50,N)105-DB-258,,SIG) C170300400003 SAMPLE Targets consisting of ~441-microg/cm2 209Bi on a C170300400004 35-microg/cm2 natC backing. C170300400005 STATUS (TABLE) Table II, page 034604-4. C170300400006 ENDBIB 4 0 C170300400007 NOCOMMON 0 0 C170300400008 DATA 4 5 C170300400009 EN DATA +ERR-S -ERR-S C170300400010 MEV PB PB PB C170300400011 229.5 55.0 250.0 45.0 C170300400012 231.8 2550.0 720.0 550.0 C170300400013 233.6 5480.0 1730.0 1370.0 C170300400014 236.0 3360.0 1940.0 1370.0 C170300400015 238.4 2600.0 1190.0 850.0 C170300400016 ENDDATA 7 0 C170300400017 ENDSUBENT 16 0 C170300499999 SUBENT C1703005 20170403 C166C170300500001 BIB 3 4 C170300500002 REACTION (83-BI-209(22-TI-50,2N)105-DB-257,,SIG) C170300500003 SAMPLE Targets consisting of ~441-microg/cm2 209Bi on a C170300500004 35-microg/cm2 natC backing. C170300500005 STATUS (TABLE) Table II, page 034604-4. C170300500006 ENDBIB 4 0 C170300500007 NOCOMMON 0 0 C170300500008 DATA 5 5 C170300500009 EN DATA +ERR-S -ERR-S DATA-MAX C170300500010 MEV PB PB PB PB C170300500011 229.5 140.0 C170300500012 231.8 160.0 C170300500013 233.6 280.0 C170300500014 236.0 650.0 630.0 350.0 C170300500015 238.4 890.0 463.0 330.0 C170300500016 ENDDATA 7 0 C170300500017 ENDSUBENT 16 0 C170300599999 ENDENTRY 5 0 C170399999999