FLNR JINR experiments on synthesis of superheavy nuclei with 48Ca beam

被引：0

作者：

Oganessian, YT ^{[1
]}

Yeremin, AV ^{[1
]}

Sagaidak, RN ^{[1
]}

Malyshev, ON ^{[1
]}

Popeko, AG ^{[1
]}

Kabachenko, AP ^{[1
]}

Chepigin, VI ^{[1
]}

Rohach, J ^{[1
]}

Gorshkov, VA ^{[1
]}

Lavrentev, AY ^{[1
]}

Itkis, MG ^{[1
]}

Gulbekian, GG ^{[1
]}

Gikal, BN ^{[1
]}

Tikhomirov, AV ^{[1
]}

Kutner, VB ^{[1
]}

Bogomolov, SL ^{[1
]}

机构：

[1] Joint Inst Nucl Res, Flerov Lab Nucl React, Dubna 141980, Moscow Region, Russia

来源：

ACTA PHYSICA POLONICA B | 1999年 / 30卷 / 05期

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The investigations of the decay properties and formation cross sections of the heaviest isotopes of the 110 and 112 elements with atomic numbers 276, 277 and 282, 283, respectively, were performed at the FLNR JINR with the use of the intense internal and extracted Ca-48 beams. Th-232 and U-238 targets were used for the experiments. With the use of U-238 target at the beam energy E-targ. = 231+/-3 MeV (EC = 31 MeV) two spontaneous fission events were detected, that corresponds to the cross section - 5.0 +/- 2 pb. The result could be explained as spontaneous fission of the even-odd isotope (283)112 With half life T-1/2 = 117(-48)(+283) seconds. The probability of a decay of (283)112 is not excluded and the possible branching ratio could be b(alpha) approximate to b(sf) approximate to 50 %.

引用

页码：1557 / 1563

页数：7

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