A New Isotope of Z=105 with Mass Number 259

FAN Hong-Mei; GAN Zai-Guo; QIN Zhi; LEI Xiang-Guo; XU Yan-Bing; HE Jian-Jun; LIU Hong-Ye; WU Xiao-Lei; GUO Jun-Sheng; ZHOU Xiao-Hong; YUAN Shuang-Gui; JIN Gen-Ming

Chinese Physics C> 2001, Vol. 25> Issue(6) : 602-606

A New Isotope of Z=105 with Mass Number 259

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

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Abstract：
An Isotope of element 105 with mass number 259 has been produced via the reaction ²⁴¹Am(²²Ne,4n)²⁵⁹Db at E_lab=120MeV. The reaction products were transported and collected using the helium-jet technique and rotating wheel apparatus. The α decays of the products and their daughter nuclides were detected by a series of Si(Au) detectors. The Z and A of the nuclide have been unambiguously identified by the genetic relationship between the new activity and the known nuclide ²⁵⁵Lr. The new nuclide ²⁵⁹Db has a half life of (0.51±0.16)s and decay by alpha particle emission with energy of 9.47MeV. The Q_α value for new isotope ²⁵⁹Db is in good coincidence with the predicted result.

References

[1]

. Flerov G N,J.Phys.Soc.Japan Suppl.,1968,24:237. 2. Ghiorso A,Nurmia M,Eskola K et al.Phys.Rev.Lett.,1970,24:1498. 3. Ghiorso A,Nurmia M,Eskola K et al.Phys.Rev.,1971,C4:1850. 4. Kratz J V,Gober M K,Zimmermann H P et al.Phys.Rev.,1992,C45:1064. 5. Mnzenberg G,Hofmann S,Heβberger F P et al.Z.Phys.,1981,A300:107. 6. Mnzenberg G,Armbruster P,Hofmann S et al.Z.Phys.,1989,A333:163. 7. Heβberger F P,Mnzenberg G,Hofmann S et al.Z.Phys.,1985,A322:557. 8. Wapstra A H,Audi G.Nucl.Phys.1985,A432:55. 9. Mller P,Nix J R,Kratz K L.Atomic Data and Nuclear Data Tables,1997,66:31510. Blann M.University of Rochester Report,1978,URNSRL–181

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FAN Hong-Mei, GAN Zai-Guo, QIN Zhi, LEI Xiang-Guo, XU Yan-Bing, HE Jian-Jun, LIU Hong-Ye, WU Xiao-Lei, GUO Jun-Sheng, ZHOU Xiao-Hong, YUAN Shuang-Gui and JIN Gen-Ming. A New Isotope of Z=105 with Mass Number 259[J]. Chinese Physics C, 2001, 25(6): 602-606.

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Received: 2000-12-01
Revised: 1900-01-01

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