L-shell ionization of Cd: Structure of the x-ray emission spectrum

2022 ◽  
Vol 232 ◽  
pp. 113401
Author(s):  
F. Fernandez ◽  
A. Sepúlveda ◽  
J. Trincavelli ◽  
G. Castellano
Keyword(s):  
Emission Spectrum ◽  
X Ray ◽  
Shell Ionization

Double L-shell ionization Kα satellites in electron-excited X-ray emission spectrum of metallic cobalt

1996 ◽  
Vol 74 (5-6) ◽  
pp. 240-243 ◽  
Author(s):  
S. N. Soni
Keyword(s):  
Electron Beam ◽  
Emission Spectrum ◽  
Metallic Cobalt ◽  
X Ray ◽  
Bent Crystal ◽  
Satellite Spectrum ◽  
Shell Ionization

The Kα5−8 satellite spectrum of metallic cobalt, excited by a 25 keV electron beam was recorded photographically on a 40 cm bent crystal spectrograph of the Cauchois-type. Three new satellites were observed at 1.7747, 1.7691, and 1.7634 Å (1 Å = 10−10 m). These are identified as α5, α6, and α7, respectively, and assigned mainly to the 2D5/2 – 2D5/2, 2P3/2 – 2D5/2, and 2P1/2 – 2D3/2 transitions, respectively, of 1s−12p−2 – 2p−3 array.

SIGMAL: A Program for Calculating L-Shell lonization Cross-Sections

1981 ◽  
Vol 39 ◽  
pp. 198-199 ◽  
Author(s):  
R.F. Egerton
Keyword(s):  
Cross Sections ◽  
Fortran Program ◽  
Absorption Data ◽  
X Ray ◽  
Atomic Electrons ◽  
Energy Dependent ◽  
Hydrogenic Model ◽  
Electron Energy Loss ◽  
X Ray Absorption ◽  
Shell Ionization

SIGMAL is a short (∼ 100-line) Fortran program designed to rapidly compute cross-sections for L-shell ionization, particularly the partial crosssections required in quantitative electron energy-loss microanalysis. The program is based on a hydrogenic model, the L1 and L23 subshells being represented by scaled Coulombic wave functions, which allows the generalized oscillator strength (GOS) to be expressed analytically. In this basic form, the model predicts too large a cross-section at energies near to the ionization edge (see Fig. 1), due mainly to the fact that the screening effect of the atomic electrons is assumed constant over the L-shell region. This can be remedied by applying an energy-dependent correction to the GOS or to the effective nuclear charge, resulting in much closer agreement with experimental X-ray absorption data and with more sophisticated calculations (see Fig. 1 ).

Relationship between Hydrogen-Bonding Motifs and the 1b1 Splitting in the X-ray Emission Spectrum of Liquid Water

2021 ◽  
Vol 12 (16) ◽  
pp. 3996-4002
Author(s):  
Vinícius Wilian D. Cruzeiro ◽  
Andrew Wildman ◽  
Xiaosong Li ◽  
Francesco Paesani
Keyword(s):  
Hydrogen Bonding ◽  
Emission Spectrum ◽  
Liquid Water ◽  
X Ray

Time Evolution of Optical Emission Spectrum of a Hg-HID Lamp Exposed to X-ray

2010 ◽  
Vol 30 (4) ◽  
pp. 449-459 ◽  
Author(s):  
N. A. Harabor ◽  
A. Harabor ◽  
I. Palarie ◽  
I. M. Popescu ◽  
G. Zissis
Keyword(s):  
Emission Spectrum ◽  
Time Evolution ◽  
Optical Emission ◽  
Optical Emission Spectrum ◽  
X Ray

K? band in the x-ray emission spectrum of nitrogen in AIIIBV-type nitrides and some of their properties

1974 ◽  
Vol 8 (3) ◽  
pp. 281-286
Author(s):  
N. N. Vasilenko ◽  
M. D. Lyutaya ◽  
E. A. Zhurakovskii ◽  
N. Frantsevich
Keyword(s):  
Emission Spectrum ◽  
X Ray ◽  
K Band

X-Ray Lβ2,15 Emission Spectrum of Ru in Ru(NH3)6Cl3

1984 ◽  
pp. 501-503 ◽  
Author(s):  
R. C. C. Perera ◽  
J. Barth ◽  
R. E. LaVilla ◽  
C. Nordling
Keyword(s):  
Emission Spectrum ◽  
X Ray

Eric Henry Stoneley Burhop, 31 January 1911 - 22 January 1980

1981 ◽  
Vol 27 ◽  
pp. 131-152 ◽  
Keyword(s):  
Secondary School ◽  
Research Problem ◽  
Salvation Army ◽  
Engineering Student ◽  
X Ray ◽  
Army Officers ◽  
One Year ◽  
Physics Department ◽  
Salvation Army Officers ◽  
Shell Ionization

Eric Henry Stoneley Burhop was born on 31 January 1911 at Hobart, Tasmania, of parents who were Salvation Army officers in poor financial circumstances. Because of the itinerant nature of his parents’ work he often had to change schools. Nevertheless, it soon became apparent that he possessed ability far above the average and his parents were prepared to sacrifice much to give him an opportunity to pursue his education through secondary school and early university until he was able to pay his own way with scholarships. He attended Ballarat and then Melbourne High School before entering Melbourne University as an engineering student in 1928. After one year he changed over to read science, specializing in physics. In 1929 he was awarded an Aitchison Bursary which assisted him financially through the remainder of his undergraduate career. He graduated B.Sc. with first class honours in physics in 1931 and then undertook an M .Sc. course in that subject. At the same time, because of his mathematical ability and interest, he completed the final honours course in mathematics to obtain the B.A. degree in 1932. Professor T . H. Laby, F .R .S., head of the Physics Department at Melbourne University, who took a close interest in promising students, realized that Burhop was exceptional and encouraged him to work towards a scientific career. The research problem for the M .Sc. which Laby proposed was quite a challenging one for the time— the determ ination of the probability of K shell ionization by electron impact, from measurements of the intensity of X -ray emission as a function of electron energy.

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