scholarly journals Lowest-Order Thermal Correction to the Hydrogen Recombination Cross-Section in Presence of Blackbody Radiation

Atoms ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 80
Author(s):  
Jaroslav Triaskin ◽  
Timur Zalialiutdinov ◽  
Aleksei Anikin ◽  
Dmitrii Solovyev
Keyword(s):  
Cross Section ◽  
Ionization Cross Section ◽  
Blackbody Radiation ◽  
Thermal Interaction ◽  
Ionization Cross ◽  
Thermal Correction ◽  
Hydrogen Recombination ◽  
Wide Range ◽  
Ionization Processes ◽  
Ionization Coefficients

In the present paper, the correction of the recombination and ionization processes of the hydrogen atom due to the thermal interaction of two charges was considered. The evaluation was based on a rigorous quantum electrodynamic (QED) approach within the framework of perturbation theory. The lowest-order radiative correction to the recombination/ionization cross-section was examined for a wide range of temperatures corresponding to laboratory and astrophysical conditions. The found thermal contribution was discussed both for specific states and for the total recombination and ionization coefficients.

Electron-Impact Ionization Cross Section of Ions

1969 ◽  
Vol 184 (1) ◽  
pp. 242-244 ◽  
Author(s):  
K. C. Mathur ◽  
A. N. Tripathi ◽  
S. K. Joshi
Keyword(s):  
Electron Impact ◽  
Cross Section ◽  
Ionization Cross Section ◽  
Impact Ionization ◽  
Electron Impact Ionization ◽  
Ionization Cross

A measurement of the ionization cross-section of Ne + to Ne 2+ by electron impact

1963 ◽  
Vol 274 (1359) ◽  
pp. 546-551 ◽  
Keyword(s):  
Electron Energy ◽  
Cross Section ◽  
Ionization Cross Section ◽  
Incident Electron Energy ◽  
Ionization Cross ◽  
Maximum Value ◽  
Beam Method ◽  
The Cross ◽  
Semi Empirical ◽  
Limits Of Error

The crossed-beam method described by the authors in 1961 was used to measure the cross-section of Ne + in the reaction Ne + + e → Ne 2+ + 2 e . The cross-section increases linearly with electron energy near the threshold and attains a maximum value of 3·13 x 10 -17 cm 2 at 200 eV. The errors in the measurements were estimated to be less than ± 10% and the highest incident electron energy used was 1000 eV. A semi-empirical formula proposed by Drawin in 1961 describes the measured cross-section within the above limits of error when the two adjustable parameters take the values ξf 1 = 5·25 and f 2 = 0·70.

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