Radiative Absorption Cross Section of an Electron in the Field of an Argon Atom

1966 ◽  
Vol 141 (1) ◽  
pp. 41-44 ◽  
Author(s):  
M. Ashkin
Keyword(s):  
Cross Section ◽  
Absorption Cross Section ◽  
Argon Atom ◽  
Absorption Cross ◽  
Radiative Absorption

scholarly journals The Continuous Radiative Absorption Cross-Section of O-

1946 ◽  
Vol 106 (2) ◽  
pp. 128-129 ◽  
Author(s):  
D. R. Bates ◽  
H. S. W. Massey
Keyword(s):  
Cross Section ◽  
Absorption Cross Section ◽  
Absorption Cross ◽  
Radiative Absorption

scholarly journals The Continuous Radiative Absorption Cross Section of FeXIV and the Coronal Temperature

1954 ◽  
Vol 7 (1) ◽  
pp. 25 ◽  
Author(s):  
Alma Werner
Keyword(s):  
Wave Function ◽  
Matrix Element ◽  
Total Cross Section ◽  
Cross Section ◽  
Ground State ◽  
Absorption Cross Section ◽  
Absorption Cross ◽  
Coronal Temperature ◽  
The Matrix ◽  
Radiative Absorption

The continuous radiative absorption cross section of FeXIV was calculated, using a Hartree wave function to evaluate the matrix element for recombination to the ground state. This matrix element was considerably smaller than the value obtained by Hill (1950, 1951) using the hydrogen-like approximation, but the total cross section for recombination was not greatly different.

Fluorescence Imaging of Mitochondria in Living Cells Using a Novel Fluorene Derivative with a Large Two-Photon Absorption Cross-Section

2012 ◽  
Vol 13 (14) ◽  
pp. 2649-2654 ◽  
Author(s):  
Seiji Tani ◽  
Kenta Nakagawa ◽  
Takuya Honda ◽  
Hiromasa Saito ◽  
Yasutaka Suzuki ◽  
...  
Keyword(s):  
Fluorescence Imaging ◽  
Cross Section ◽  
Absorption Cross Section ◽  
Living Cells ◽  
Photon Absorption ◽  
Absorption Cross ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Fluorene Derivative

scholarly journals Photoelectric absorption cross section of silicon near the bandgap from room temperature to sub-Kelvin temperature

AIP Advances ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 025120
Author(s):  
C. Stanford ◽  
M. J. Wilson ◽  
B. Cabrera ◽  
M. Diamond ◽  
N. A. Kurinsky ◽  
...  
Keyword(s):  
Cross Section ◽  
Absorption Cross Section ◽  
Room Temperature ◽  
Absorption Cross ◽  
Photoelectric Absorption

scholarly journals Ultraviolet Absorption Cross-Sections of Ammonia at Elevated Temperatures for Nonintrusive Quantitative Detection in Combustion Environments

2021 ◽  
pp. 000370282199044
Author(s):  
Wubin Weng ◽  
Shen Li ◽  
Marcus Aldén ◽  
Zhongshan Li
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Absorption Cross Section ◽  
Elevated Temperatures ◽  
Uv Absorption ◽  
Energy Utilization ◽  
Quantitative Detection ◽  
Absorption Cross ◽  
Hot Gas

Ammonia (NH3) is regarded as an important nitrogen oxides (NOx) precursor and also as an effective reductant for NOx removal in energy utilization through combustion, and it has recently become an attractive non-carbon alternative fuel. To have a better understanding of thermochemical properties of NH3, accurate in situ detection of NH3 in high temperature environments is desirable. Ultraviolet (UV) absorption spectroscopy is a feasible technique. To achieve quantitative measurements, spectrally resolved UV absorption cross-sections of NH3 in hot gas environments at different temperatures from 295 K to 590 K were experimentally measured for the first time. Based on the experimental results, vibrational constants of NH3 were determined and used for the calculation of the absorption cross-section of NH3 at high temperatures above 590 K using the PGOPHER software. The investigated UV spectra covered the range of wavelengths from 190 nm to 230 nm, where spectral structures of the [Formula: see text] transition of NH3 in the umbrella bending mode, v2, were recognized. The absorption cross-section was found to decrease at higher temperatures. For example, the absorption cross-section peak of the (6, 0) vibrational band of NH3 decreases from ∼2 × 10−17 to ∼0.5 × 10−17 cm2/molecule with the increase of temperature from 295 K to 1570 K. Using the obtained absorption cross-section, in situ nonintrusive quantification of NH3 in different hot gas environments was achieved with a detection limit varying from below 10 parts per million (ppm) to around 200 ppm as temperature increased from 295 K to 1570 K. The quantitative measurement was applied to an experimental investigation of NH3 combustion process. The concentrations of NH3 and nitric oxide (NO) in the post flame zone of NH3–methane (CH4)–air premixed flames at different equivalence ratios were measured.

scholarly journals Coupling of Energy Into PCB Traces in a Reverberant Environment: Absorption Cross-section and Probability of Susceptibility

2020 ◽  
Author(s):  
Arunkumar H. Venkateshaiah ◽  
Haiyan Xie ◽  
John F. Dawson ◽  
Andrew C. Marvin ◽  
Linda Dawson ◽  
...  
Keyword(s):  
Cross Section ◽  
Absorption Cross Section ◽  
Absorption Cross ◽  
Reverberant Environment

Absorption cross section and Hawking radiation from Bardeen regular black hole

2015 ◽  
Vol 47 (2) ◽  
Author(s):  
Hai Huang ◽  
Mengjiao Jiang ◽  
Juhua Chen ◽  
Yongjiu Wang
Keyword(s):  
Black Hole ◽  
Cross Section ◽  
Hawking Radiation ◽  
Absorption Cross Section ◽  
Absorption Cross ◽  
Regular Black Hole

Measurement of the absorption cross-section of peroxynitric acid between 210 and 330 nm in the range 253 – 298 K

1989 ◽  
Vol 48 (1) ◽  
pp. 17-32 ◽  
Author(s):  
R.J. Singer ◽  
J.N. Crowley ◽  
J.P. Burrows ◽  
W. Schneider ◽  
G.K. Moortgat
Keyword(s):  
Cross Section ◽  
Absorption Cross Section ◽  
Absorption Cross ◽  
Peroxynitric Acid
Sign in / Sign up

Export Citation Format

Share Document