DETERMINATION OF THE LIFETIME OF THE 4p1P0 STATE OF CALCIUM BY ELECTRON PHOTON COINCIDENCE

doi:10.1088/1009-1963/10/11/305

中国物理B ›› 2001, Vol. 10 ›› Issue (11): 1017-1020.doi: 10.1088/1009-1963/10/11/305

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

DETERMINATION OF THE LIFETIME OF THE 4p¹P⁰ STATE OF CALCIUM BY ELECTRON PHOTON COINCIDENCE

M.A.K.Elfayoumi

Department of Physics, Beni-suef Faculty of Science, Cairo University, Egypt

收稿日期:2001-02-22 修回日期:2001-06-17 出版日期:2005-06-12 发布日期:2005-06-12

DETERMINATION OF THE LIFETIME OF THE 4p¹P⁰ STATE OF CALCIUM BY ELECTRON PHOTON COINCIDENCE

M.A.K.Elfayoumi

Department of Physics, Beni-suef Faculty of Science, Cairo University, Egypt

Received:2001-02-22 Revised:2001-06-17 Online:2005-06-12 Published:2005-06-12

摘要/Abstract

摘要： The electron-photon delayed coincidence technique has been used to measure precisely the lifetime for the 4p¹P⁰ state in calcium. The lifetime of this state was obtained by measuring the time correlation spectrum between the inelastically scattered electrons and the corresponding de-excitation photons. By using the least-squares fitting program to fit Gale's equation to the data points, a value of (4.15±0.17) ns was obtained. The result was compared to some of the earlier experimental measurements.

Abstract: The electron-photon delayed coincidence technique has been used to measure precisely the lifetime for the 4p¹P⁰ state in calcium. The lifetime of this state was obtained by measuring the time correlation spectrum between the inelastically scattered electrons and the corresponding de-excitation photons. By using the least-squares fitting program to fit Gale's equation to the data points, a value of (4.15±0.17) ns was obtained. The result was compared to some of the earlier experimental measurements.

Key words: electron-atom collision

中图分类号: (Oscillator strengths, lifetimes, transition moments)

32.70.Cs

32.80.-t (Photoionization and excitation) 34.80.Dp (Atomic excitation and ionization)

M.A.K.Elfayoumi. DETERMINATION OF THE LIFETIME OF THE 4p¹P⁰ STATE OF CALCIUM BY ELECTRON PHOTON COINCIDENCE[J]. 中国物理B, 2001, 10(11): 1017-1020.

M.A.K.Elfayoumi. DETERMINATION OF THE LIFETIME OF THE 4p¹P⁰ STATE OF CALCIUM BY ELECTRON PHOTON COINCIDENCE[J]. Chinese Physics, 2001, 10(11): 1017-1020.

[1]	Zi-Shan Xu(徐子珊), Han-Mu Wang(王汉睦), Ming-Hao Cai(蔡明皓), Shu-Hang You(游书航), and Hong-Ping Liu(刘红平). High resolution spectroscopy of Rb in magnetic field by far-detuning electromagnetically induced transparency[J]. 中国物理B, 2022, 31(12): 123201-123201.
[2]	Mu-Hong Hu(胡木宏), Nan Wang(王楠), Pin-Jun Ouyang(欧阳品均),Xin-Jie Feng(冯新杰), Yang Yang(杨扬), and Chen-Sheng Wu(武晨晟). Energy levels and magnetic dipole transition parameters for the nitrogen isoelectronic sequence[J]. 中国物理B, 2022, 31(9): 93101-093101.
[3]	Zi-Shan Xu(徐子珊), Han-Mu Wang(王汉睦), Zeng-Li Ba(巴曾立), and Hong-Ping Liu(刘红平). Transient electromagnetically induced transparency spectroscopy of ⁸⁷Rb atoms in buffer gas[J]. 中国物理B, 2022, 31(7): 73201-073201.
[4]	Jian Zeng(曾健) and Zhi-Yuan Li(李志远). Quantum mechanical solution to spectral lineshape in strongly-coupled atom-nanocavity system[J]. 中国物理B, 2022, 31(4): 43202-043202.
[5]	田亚莉, 王志辉, 杨鹏飞, 张鹏飞, 李刚, 张天才. Comparison of single-neutral-atom qubit between in bright trap and in dark trap[J]. 中国物理B, 2019, 28(2): 23701-023701.
[6]	何晓康, 刘建鹏, 张祥, 沈咏, 邹宏新. Forbidden transition properties of fine-structure 2p^{3 4}S_3/2-2p^{3 2}D_3/2,5/2 for nitrogen-like ions[J]. 中国物理B, 2018, 27(8): 83102-083102.
[7]	孙四梅, 张嵩, 江超, 郭小珊, 胡义慧. Theoretical study on twisted intramolecular charge transfer of 1-aminoanthraquinone in different solvents[J]. 中国物理B, 2018, 27(8): 83401-083401.
[8]	刘建鹏, 李承斌, 邹宏新. Theoretical investigation on forbidden transition properties of fine-structure splitting in ²D state for K-like ions with 26 ≤ Z ≤ 36[J]. 中国物理B, 2017, 26(10): 103201-103201.
[9]	Kanti M Aggarwal. Comment on “Atomic structure calculations for F-like tungsten” by S. Aggarwal [Chin. Phys B 23 (2014) 093203][J]. 中国物理B, 2016, 25(4): 43201-043201.
[10]	Indu Khatri, Arun Goyal, Sunny Aggarwal, A K Singh, Man Mohan. Extreme ultraviolet and soft x-ray spectral lines in Rb XXIX[J]. 中国物理B, 2016, 25(3): 33201-033201.
[11]	Kanti M. Aggarwal. Comment on “Relativistic atomic data for W XLVII” by S. Aggarwal et al. [Chin. Phys. B 24 (2015) 053201][J]. 中国物理B, 2015, 24(12): 123201-123201.
[12]	余庚华, 耿鹰鸽, 李隆, 周超, 段丞博, 柴瑞鹏, 杨永明. The ac Stark shifts of the terahertz clock transitions of barium[J]. 中国物理B, 2015, 24(10): 103201-103201.
[13]	Indu Khatri, Arun Goyal, Sunny Aggarwal, A. K. Singh, Man Mohan. Extreme ultraviolet and x-ray transition wavelengths in Rb XXIV[J]. 中国物理B, 2015, 24(10): 103202-103202.
[14]	Sunny Aggarwal, A. K. S. Jha, Indu Khatri, Narendra Singh, Man Mohan. Relativistic atomic data for W XLVII[J]. 中国物理B, 2015, 24(5): 53201-053201.
[15]	荆华, 野仕伟, 戴长建. Lifetimes of Rydberg states of Eu atoms[J]. 中国物理B, 2015, 24(1): 13203-013203.

DETERMINATION OF THE LIFETIME OF THE 4p¹P⁰ STATE OF CALCIUM BY ELECTRON PHOTON COINCIDENCE

DETERMINATION OF THE LIFETIME OF THE 4p¹P⁰ STATE OF CALCIUM BY ELECTRON PHOTON COINCIDENCE

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 0