Evaluation of theoretical conversion coefficients using BrIcc

被引：824

作者：

Kibedi, T. ^{[1
]}

Burrows, T. W. ^{[2
]}

Trzhaskovskaya, M. B. ^{[3
]}

Davidson, P. M. ^{[1
]}

Nestor, C. W., Jr. ^{[4
]}

机构：

[1] Australian Natl Univ, Res Sch Phys Sci & Engn, Dept Nucl Phys, Canberra, ACT 0200, Australia

[2] Brookhaven Natl Lab, Natl Nucl Data Ctr, Upton, NY 11973 USA

[3] Petersburg Nucl Phys Inst, Gatchina 188300, Russia

[4] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2008年 / 589卷 / 02期

关键词：

nuclear structure; electromagnetic transitions; internal conversion coefficients; internal pair production; E0 electronic factors;

D O I：

10.1016/j.nima.2008.02.051

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A new internal conversion coefficient database, BrIcc has been developed which integrates a number of tabulations on internal conversion electron (ICC) and electron-positron pair conversion coefficients (IPC), as well as Omega(E0) electronic factors. A critical review of general formulae and procedures to evaluate theoretical ICC and IPC values are presented, including the treatment of uncertainties in transition energy and mixing ratio in accordance with the Evaluated Nuclear Structure Data File. The default ICC table, based on the Dirac-Fock calculations using the so called "Frozen Orbital" approximation, takes into account the effect of atomic vacancies created in the conversion process. The table has been calculated for all atomic shells and to cover transition energies of 1-6000 keV and atomic numbers of Z = 5-110. The software tools presented here are well suited for basic nuclear structure research and for a range of applications. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：202 / 229

页数：28

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