Preparation of Thick Americium Targets and Synthesis of <SUB>259</SUB>Db

• Guo J. S.

  Institute of Modern Physics, Chinese Academy of Sciences

• Qin Z.

  Institute of Modern Physics, Chinese Academy of Sciences

• Gan Z. G.

  Institute of Modern Physics, Chinese Academy of Sciences

• Fan H. M.

  Institute of Modern Physics, Chinese Academy of Sciences

• Xu Y. B.

  Institute of Modern Physics, Chinese Academy of Sciences

• He J. J.

  Institute of Modern Physics, Chinese Academy of Sciences

• Lei X. G.

  Institute of Modern Physics, Chinese Academy of Sciences

• Wu X. L.

  Institute of Modern Physics, Chinese Academy of Sciences

• Liu H. Y.

  Institute of Modern Physics, Chinese Academy of Sciences

• Zhou X. H.

  Institute of Modern Physics, Chinese Academy of Sciences

• Yuan S. G.

  Institute of Modern Physics, Chinese Academy of Sciences

• Jin G. M.

  Institute of Modern Physics, Chinese Academy of Sciences

Bibliographic Information

Other Title

• Preparation of Thick Americium Targets and Synthesis of 259Db

Abstract

A new isotope of ²⁵⁹Db has been produced via the reaction ²⁴¹Am (²²Ne, 4n) at E_lab=118 MeV, and its half-life of 0.51 ± 0.16 s and α-decay energy of 9.47 MeV were determined in this work. The americium targets with thickness ranged from 0.7 to 1.0 mg/cm₂ were prepared by molecular plating method through a single electrodeposition cycle. The reaction products were transported and collected using a helium jet technique and a rotating wheel apparatus. The α decays of both the products and their daughter nuclides were detected by a series of Si (Au) surface barrier detectors arranged ingeniously. The identification of ²⁵⁹Db was performed based on the genetic relationship between the new activity and the known ²⁵⁵Lr established by α-recoiled milking measurement. The Q_α value of ²⁵⁹Db derived from the present experiment is in good agreement with theoretical prediction.

Journal

• Journal of Nuclear and Radiochemical Sciences

  Journal of Nuclear and Radiochemical Sciences 3 (1), 183-186, 2002

  The Japan Society of Nuclear and Radiochemical Sciences

Details

• CRID: 1390001204482210816
• NII Article ID: 10013978551
• NII Book ID: AA11948402
• DOI: 10.14494/jnrs2000.3.183
• ISSN: 18835813
• ISSN: 13454749
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed