Photoionization of the Be isoelectronic sequence: total cross sections

被引：10

作者：

Chu, W-C ^{[1
]}

Zhou, H-L ^{[1
]}

Hibbert, A. ^{[2
]}

Manson, S. T. ^{[1
]}

机构：

[1] Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30303 USA

[2] Queens Univ Belfast, Sch Math & Phys, Belfast BT7 1NN, Antrim, North Ireland

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2009年 / 42卷 / 20期

关键词：

RANDOM-PHASE-APPROXIMATION; OSCILLATOR-STRENGTHS; ATOMIC DATA; OPACITY CALCULATIONS; WAVE-FUNCTIONS; GROUND-STATE; C2+ ION; SHELL; RECOMBINATION; ELECTRONS;

D O I：

10.1088/0953-4075/42/20/205003

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The photoionization of the four-electron beryllium-like isoelectronic series from the neutral to Fe(+22) has been studied for ground (1)S and metastable (3)P initial states. The wavefunctions of the final-state (target) ions were built using the CIV3 code. Both nonrelativistic LS-coupling R-matrix and relativistic Breit-Pauli (BP) R-matrix methods were used to calculate the cross sections in the photon-energy range between the first ionization threshold and the 1s(2)4f(7/2) threshold for each ion. Our total cross sections compare well with experiment which is available for Be, B(+), C(+2), N(+3) and O(+4). The agreement between the present work and previous calculations is discussed in detail. The importance of relativistic effects is seen by the comparison between the LS and the BP results.

引用

页数：17

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