Cross sections for ionization of K, L and M shells of atoms by impact of electrons and positrons with energies up to 1 GeV: Analytical formulas

被引：103

作者：

Bote, David ^{[1
]}

Salvat, Francesc ^{[1
]}

Jablonski, Aleksander ^{[2
]}

Powell, Cedric J. ^{[3
]}

机构：

[1] Univ Barcelona, Fac Fis ECM & ICC, E-08028 Barcelona, Spain

[2] Polish Acad Sci, Inst Phys Chem, PL-01224 Warsaw, Poland

[3] NIST, Surface & Microanal Sci Div, Gaithersburg, MD 20899 USA

来源：

ATOMIC DATA AND NUCLEAR DATA TABLES | 2009年 / 95卷 / 06期

关键词：

D O I：

10.1016/j.adt.2009.08.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Analytical formulas are presented for the easy calculation of cross sections for ionization of K. L and M shells of neutral atoms by impact of electrons and positrons with kinetic energies up to 1 GeV. Each formula contains a number of parameters that are characteristic of the element, the active electron shell and the projectile particle. The values of these parameters were determined by fitting the cross section values in an extensive database that was calculated recently by means of a composite algorithm that combines the distorted-wave and plane-wave Born approximations. Tables of parameter Values are given for all elements. from hydrogen (Z = 1) to einsteinium (Z = 99). The proposed analytical expressions yield ionization cross sections that agree with those in the numerical database to within about 1%, except for projectiles with near-threshold energies. (C) 2009 Elsevier Inc. All rights reserved.

引用

页码：871 / 909

页数：39

共 13 条

[1] Calculations of inner-shell ionization by electron impact with the distorted-wave and plane-wave Born approximations [J].

Bote, David ;

Salvat, Francesc .

PHYSICAL REVIEW A, 2008, 77 (04)

[2]

Carlson T. A., 1975, Photoelectron and Auger Spectroscopy

[3] CLASSICAL THEORY OF ATOMIC COLLISIONS .I. THEORY OF INELASTIC COLLISIONS [J].

GRYZINSKI, M .

PHYSICAL REVIEW, 1965, 138 (2A) :A336-+

[4] BINARY-ENCOUNTER-DIPOLE MODEL FOR ELECTRON-IMPACT IONIZATION [J].

KIM, YK ;

RUDD, ME .

PHYSICAL REVIEW A, 1994, 50 (05) :3954-3967

[5] Scaling of plane-wave Born cross sections for electron-impact excitation of neutral atoms [J].

Kim, YK .

PHYSICAL REVIEW A, 2001, 64 (03) :10

[6] ATOMIC ENERGY LEVELS FOR THE THOMAS-FERMI AND THOMAS-FERMI-DIRAC POTENTIAL [J].

LATTER, R .

PHYSICAL REVIEW, 1955, 99 (02) :510-519

[7] SELF-CONSISTENT-FIELD DIRAC-SLATER WAVE FUNCTIONS FOR ATOMS AND IONS .I. COMPARISON WITH PREVIOUS CALCULATIONS [J].

LIBERMAN, D ;

WABER, JT ;

CROMER, DT .

PHYSICAL REVIEW, 1965, 137 (1A) :A27-&

[8] Experimental electron-impact K-shell ionization cross sections [J].

Liu, MT ;

An, Z ;

Tang, CH ;

Luo, ZM ;

Peng, XF ;

Long, XG .

ATOMIC DATA AND NUCLEAR DATA TABLES, 2000, 76 (02) :213-234

[9] Absolute K-shell ionization cross sections and Lα and Lβ1 x-ray production cross sections of Ga and As by 1.5-39-keV electrons [J].

Merlet, C. ;

Llovet, X. ;

Fernandez-Varea, J. M. .

PHYSICAL REVIEW A, 2006, 73 (06)

[10] Measurements of absolute K-shell ionization cross sections and L-shell x-ray production cross sections of Ge by electron impact -: art. no. 032708 [J].

Merlet, C ;

Llovet, X ;

Salvat, F .

PHYSICAL REVIEW A, 2004, 69 (03) :032708-1

← 1 2 →