First Experimental Determination of Half-Life for New Nuclide <SUP>65</SUP>Se

Huang Wenxue; Xu Xiaoji; Hu Zhiqiang; Ma Ruichang

Chinese Physics C> 1996, Vol. 20> Issue(2) : 113-118

First Experimental Determination of Half-Life for New Nuclide ⁶⁵Se

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

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Abstract：
By using experimental data obtained from the measurement of beta-delayed proton decay of ⁶⁵Se produced in ⁴⁰Ca(²⁸Si,3n)reaction,the absolute detection efficiency of particle telescope for rotating radioactive source was imitatively calcu-lated.The half-life of ⁶⁵Se was thus accurately determined to be 9.6_-4.1^+5.3 ms.The β-delayed proton energy of ⁶⁵Se was 3.70±0.08MeV.The partial decay scheme of ⁶⁵Se β-delayed proton decay was revised and proposed.

References

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M.A.C.Hotchkis,J.E.Reiff,D.J.Vieira et al,Phys.Rev.,C35（1987）315.[2]胡志强、徐晓冀，原子能科学技术，28（1994）396.[3]徐晓冀，高能物理与核物理，13（1989）156.[4]J.C.Batchelder,D.M.Moltz,T.J.Ognibene et al,Phys.Rev.,C47（1993）2038.[5]K.PJackon,C.U.Cardinal,H.C.Evans,et al.,Phys.Lett.,B33（1970）281.[6]Richard G.Sextro,R.A.Gough,Joseph Cemy,Nucl.Phys,A234（1974）130.[7]徐晓冀、区秀兰、程远，高能物理与核物理，15（1991）630.[8]Y.Yoshisawa,T.Horiguchi,M.Yamada,Chart of the Nuclides 1988,Japanese Nuclear Data Committee and Nuclear Data Center.[9]G.Audi,A.H.Wapstra,Nucl.Phys.A565（1993）1.

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Huang Wenxue, Xu Xiaoji, Hu Zhiqiang and Ma Ruichang. First Experimental Determination of Half-Life for New Nuclide ⁶⁵Se[J]. Chinese Physics C, 1996, 20(2): 113-118.

Huang Wenxue, Xu Xiaoji, Hu Zhiqiang and Ma Ruichang. First Experimental Determination of Half-Life for New Nuclide ⁶⁵Se[J]. Chinese Physics C, 1996, 20(2): 113-118. 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

First Experimental Determination of Half-Life for New Nuclide ⁶⁵Se

Corresponding author: Huang Wenxue,

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

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1996-02-05

Abstract: By using experimental data obtained from the measurement of beta-delayed proton decay of ⁶⁵Se produced in ⁴⁰Ca(²⁸Si,3n)reaction,the absolute detection efficiency of particle telescope for rotating radioactive source was imitatively calcu-lated.The half-life of ⁶⁵Se was thus accurately determined to be 9.6_-4.1^+5.3 ms.The β-delayed proton energy of ⁶⁵Se was 3.70±0.08MeV.The partial decay scheme of ⁶⁵Se β-delayed proton decay was revised and proposed.