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Soviet Atomic Energy

, Volume 19, Issue 2, pp 995–999 | Cite as

Synthesis of the isotope of element 103 (lawrencium) with mass number 256

  • E. D. Donets
  • V. A. Shchegolev
  • V. A. Ermakov
Articles

Abstract

A new isotope of element 103 with mass number 256 was synthesized by means of the nuclear reaction95Am243 (8O18′ 5n)103Lw256.

The detection and identification of103Lw256 was made through the isotope100Fm252, a product of electron capture in101Mv252 produced by α-decay of103Lw256. The half-life of103Lw256 is 45 sec.

The energy dependence of the103Lw256 production cross section in the95Am243+8O13 reaction was investigated. It was the shape of a curve with a maximum at an8O18 ion energy ≈96 MeV (lab system). The half-width of the curve is 9 MeV. At the maximum, the cross section is 6·10−32 cm2.

The work was carried out with the internal beam of the three-meter, multiply-charged ion cyclotron of the Laboratory for Nuclear Research, JINL.

Keywords

Production Cross Electron Capture Energy Dependence Production Cross Section Nuclear Research 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature Cited

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    A. G. Ghiorso, et. al., Phys. Rev. Letters,6, 473 (1961).Google Scholar
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    E. D. Donets, V. A. Shchegolev, and V. A. Ermakov, JINR Preprint P-2114 [in Russian], Dubna (1965).Google Scholar
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    E. D. Donets, V. A. Shchegolev, and V. A. Ermakov, Atomnaya Énergiya,16, 195 (1964).Google Scholar
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    V. A. Druin, JINR Preprint P-874 [in Russian] (1962).Google Scholar

Copyright information

© Consultants Bureau 1966

Authors and Affiliations

  • E. D. Donets
  • V. A. Shchegolev
  • V. A. Ermakov

There are no affiliations available

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