4π△E<SUB>β</SUB> Detector and Its Application to Researching Neutron-Rich Nuclides

Wang Jicheng; Zhao Jinhua; Guo Guanghui; Yang Yongfeng; Zhang Li

Chinese Physics C> 1995, Vol. 19> Issue(7) : 653-657

4π△E_β Detector and Its Application to Researching Neutron-Rich Nuclides

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

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Abstract：
A 4π△E_β detector has been set up. Its time response is very good and the rising time is 8ns. By using 4π△E_β-γ coincidence technique, the γ intensity of neutron-deficient nuclides followed by electron capture is strongly suppressed, but the coincidence efficiency about γ line followed by 100% β-decay in neutron-rich Hgnuclides reaches highly 60％. The application of this detector to ¹⁸O＋²⁰⁸Pb experiment made the Compton background descend sharply.

References

[1]	核素图表编制组，核素常用数据表，原子能出版社，（1976）.[2]E.Runte et al.,Z.Phys,A328（1987）119.[3]R.Kirchner et al,Nucl.Phys,A378（1982）549.[4]K.Rykaczewski et al,Nucl.Phys.,A499（1989）529.[5]E.Runte et al,Nucl.Phys.,A453（1986）1.[6]ZhangLi et al Phys.Rev.,C49（1994）27.[7]ZhaoJinhua et al,Chin,J.of Nucl.Phys.,14（1992）267.

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Wang Jicheng, Zhao Jinhua, Guo Guanghui, Yang Yongfeng and Zhang Li. 4π△E_β Detector and Its Application to Researching Neutron-Rich Nuclides[J]. Chinese Physics C, 1995, 19(7): 653-657.

Wang Jicheng, Zhao Jinhua, Guo Guanghui, Yang Yongfeng and Zhang Li. 4π△E_β Detector and Its Application to Researching Neutron-Rich Nuclides[J]. Chinese Physics C, 1995, 19(7): 653-657. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

4π△E_β Detector and Its Application to Researching Neutron-Rich Nuclides

Corresponding author: Wang Jicheng,

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

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1995-07-05

Abstract: A 4π△E_β detector has been set up. Its time response is very good and the rising time is 8ns. By using 4π△E_β-γ coincidence technique, the γ intensity of neutron-deficient nuclides followed by electron capture is strongly suppressed, but the coincidence efficiency about γ line followed by 100% β-decay in neutron-rich Hgnuclides reaches highly 60％. The application of this detector to ¹⁸O＋²⁰⁸Pb experiment made the Compton background descend sharply.