ENTRY A0884 20170211 A087A088400000001
SUBENT A0884001 20170211 A087A088400100001
BIB 12 48 A088400100002
TITLE Eleven new heaviest isotopes of elements Z = 105 to A088400100003
Z = 117 identified among the products of 249Bk + 48Ca A088400100004
reactions. A088400100005
AUTHOR (Yu.Ts.Oganessian, F.Sh.Abdullin, P.D.Bailey, A088400100006
D.E.Benker, M.E.Bennett, S.N.Dmitriev, J.G.Ezold, A088400100007
J.H.Hamilton, R.A.Henderson, M.G.Itkis, Yu.V.Lobanov, A088400100008
A.N.Mezentsev, K.J.Moody, S.L.Nelson, A.N.Polyakov, A088400100009
C.E.Porter, A.V.Ramayya, F.D.Riley, J.B.Roberto, A088400100010
M.A.Ryabinin, K.P.Rykaczewski, R.N.Sagaidak, A088400100011
D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, A088400100012
V.G.Subbotin, R.Sudowe, A.M.Sukhov, R.Taylor, A088400100013
Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin, A088400100014
P.A.Wilk) A088400100015
REFERENCE (J,PR/C,83,054315,2011) A088400100016
INSTITUTE (4ZZZDUB,1USAORL,1USAVBT,1USALRL,4RUSNIR) A088400100017
(1USAUSA) University of Nevada Las Vegas, Las Vegas, A088400100018
Nevada A088400100019
FACILITY (CYCLO,4ZZZDUB) A088400100020
(OLMS,4ZZZDUB) the Dubna Gas-Filled Recoil Separator- A088400100021
DGFRS A088400100022
METHOD (TOF) A088400100023
PART-DET (A) And Residual Nuclides. A088400100024
SAMPLE The Bk-249 was produced of seven targets, containing A088400100025
approx. 50 g of actinides, predominately Cm (42 g), A088400100026
Am (5 g) and Pu (3 g) A088400100027
Six targets were manufactured from this material, by A088400100028
depositing BkO(2) oxide onto 0.74 mg/cm**2 Ti foils to A088400100029
a thickness of 0.31 mg/cm**2 of Bk-249. Each target hadA088400100030
an area of 6.0 cm**2 in the shape of an arc segment A088400100031
with an angular extension of 60 deg and an average A088400100032
radius of 60 mm. A088400100033
In the course of the bombardment with an intense beam A088400100034
of Ca-48, the target layers of BkO(2) were A088400100035
systematically monitored by counting particles from theA088400100036
decay of Cf-249, the beta-decay daughter of Bk-249Bk. A088400100037
At the start of the experiment 37 mug/cm**2 of the A088400100038
Cf-249 daughter was present in the target. A088400100039
DETECTOR (MCPLT) a 4-cm*12-cm semiconductor detector array withA088400100040
12 vertical position-sensitive strips surrounded by A088400100041
eight 4-cm*4-cm side detectors without position A088400100042
sensitivity, forming a box open to the front (beam) A088400100043
side. The position-averaged detection efficiency for A088400100044
full-energy alpha-particles emitted in the decays of A088400100045
implanted nuclei was 87%. A088400100046
ERR-ANALYS (DATA-ERR) No information about source of uncertaintiesA088400100047
STATUS (TABLE).Table 3 of J,PR/C,83,054315,2011 A088400100048
HISTORY (20110701C) SB A088400100049
(20170211A) SD: REACTION code update in Subents 002,003A088400100050
ENDBIB 48 0 A088400100051
NOCOMMON 0 0 A088400100052
ENDSUBENT 51 0 A088400199999
SUBENT A0884002 20170211 A087A088400200001
BIB 3 5 A088400200002
REACTION (97-BK-249(20-CA-48,3N)117-TS-294,,SIG) A088400200003
COMMENT *By authors*.Half-life is 78.0+-370.,36 msec, A088400200004
Expected half-life is 30 msec, E(a)=10.81+-0.10 MeV A088400200005
HISTORY (20170211A) SD: SF4=117-*-294 -> 117-TS-294 in A088400200006
REACTION code. A088400200007
ENDBIB 5 0 A088400200008
NOCOMMON 0 0 A088400200009
DATA 5 2 A088400200010
EN DATA +DATA-ERR -DATA-ERR DATA-MAX A088400200011
MEV PB PB PB PB A088400200012
252. 0.7 A088400200013
247. 0.5 1.1 0.4 A088400200014
ENDDATA 4 0 A088400200015
ENDSUBENT 14 0 A088400299999
SUBENT A0884003 20170211 A087A088400300001
BIB 3 5 A088400300002
REACTION (97-BK-249(20-CA-48,4N)117-TS-293,,SIG) A088400300003
COMMENT *By authors*.Half-life is 14.0+-11.,4 msec, A088400300004
Expected half-life is 8 msec, E(a)=11.03+-0.08 MeV A088400300005
HISTORY (20170211A) SD: SF4=117-*-293 -> 117-TS-293 in A088400300006
REACTION code. A088400300007
ENDBIB 5 0 A088400300008
NOCOMMON 0 0 A088400300009
DATA 5 2 A088400300010
EN DATA +DATA-ERR -DATA-ERR DATA-MAX A088400300011
MEV PB PB PB PB A088400300012
252. 1.3 1.5 0.6 A088400300013
247. 0.8 A088400300014
ENDDATA 4 0 A088400300015
ENDSUBENT 14 0 A088400399999
ENDENTRY 3 0 A088499999999