β-delayed fission of <SUP>228</SUP>Ac

YUAN Shuang-Gui; XU Yan-Bing; DING Hua-Jie; YANG Wei-Fan; NIU Yan-Ning; XIAO Yong-Hou

Chinese Physics C> 2008, Vol. 32> Issue(S2) : 53-55

β-delayed fission of ²²⁸Ac

Abstract
HTML
Reference
Related

PDF

Abstract：
The basic process of an exotic decay mode namely β-delayed fission is simply introduced. The progress status of the study in the world is essentialized. The observation of β-delayed fission of ²²⁸Ac is reported. The radium was radiochemically separated from natural thorium. Thin Ra sources in which ²²⁸Ac was got through ²²⁸Ra →β^－228Ac were prepared for observing fission fragments from β-delayed fission of ²²⁸Ac. They exposed to the mica fission track detectors, and measured by an HPGe γ-ray detector. The β-delayed fission events of ²²⁸Ac were observed and its β-delayed fission probability was found to be (5±2)×10^－12.

References

[1]

. Berlovich E Ye, Novikov Yu N. Phys. Lett. B, 1969, 29:1552. Klapdor H V et al. Z. Phys. A, 1981, 299: 2133. Thielemann F K, Metzinger J, Klapdor H V. Z. Phys. A,1983, 309: 3014. Klapdor H V. Fortschr Phys., 1985, 33: 15. Staudt A, Klapdor-Kleingrothaus H V. Nucl. Phys. A,1992, 549: 2546. Panov I V et al. Nucl. Phys. A, 2005, 747: 6337. Pfei er B et al. Nucl. Phys. A, 2001, 693: 2828. Panov I V, Thielemann F K. Nucl. Phys. A, 2003, 718:647c9. Gangrskii Yu P et al. Sov. J. Nucl. Phys., 1978, 27: 47510. Baas-May A, Kratz J V, Trautmann N. Z. Phys. A, 1985,322: 45711. Mezilev K A et al. Z. Phys. A, 1990, 337: 10912. Hall H L et al. Phys. Rev. C, 1989, 39: 186613. YUAN Shuang-Gui et al. Eur. Phys. J. A, 2001, 10: 114. Gilat J, Katco S, Inorg J. Nucl. Chem., 1978, 40: 36915. Hudis J, Katco S. Phys. Rev., 1969, 180: 112216. Prevo P R, Dahl R E, Yoshikawa H H. Journal of AppliedPhysics, 1964, 35: 263617. Gupta R K, Greiner W. Int. J. Mod. Phys., 1994, 3: 33518. Misicu S Greiner W. J. Phys. G: Nucl. Part. Phys., 2003,29: 6719. Blendowske R et al. Nuclear Decay Modes. Edited by D.N. Poenaru (IOP Publishing, Bristol, 1996)20. Artna-Cohen A. Nuclear Data Sheets, 1997, 80: 22721. Artna-Cohen A. Nuclear Data Sheets, 1997, 80: 723

[1] Dai Guangxi , Li Weisheng . Exploration of Optimum Shape in Symmetric Fission. Chinese Physics C, 1988, 12(S4): 399-404.
Access

Get Citation

YUAN Shuang-Gui, XU Yan-Bing, DING Hua-Jie, YANG Wei-Fan, NIU Yan-Ning and XIAO Yong-Hou. β-delayed fission of ²²⁸Ac[J]. Chinese Physics C, 2008, 32(S2): 53-55.

YUAN Shuang-Gui, XU Yan-Bing, DING Hua-Jie, YANG Wei-Fan, NIU Yan-Ning and XIAO Yong-Hou. β-delayed fission of ²²⁸Ac[J]. Chinese Physics C, 2008, 32(S2): 53-55. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2008-07-16
Revised: 1900-01-01

Article Metric

Article Views(3601)
PDF Downloads(602)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

β-delayed fission of ²²⁸Ac

Corresponding author: YUAN Shuang-Gui,

Received Date: 2008-07-16
Accepted Date: 1900-01-01
Available Online: 2008-01-03

Abstract: The basic process of an exotic decay mode namely β-delayed fission is simply introduced. The progress status of the study in the world is essentialized. The observation of β-delayed fission of ²²⁸Ac is reported. The radium was radiochemically separated from natural thorium. Thin Ra sources in which ²²⁸Ac was got through ²²⁸Ra →β^－228Ac were prepared for observing fission fragments from β-delayed fission of ²²⁸Ac. They exposed to the mica fission track detectors, and measured by an HPGe γ-ray detector. The β-delayed fission events of ²²⁸Ac were observed and its β-delayed fission probability was found to be (5±2)×10^－12.