Electron impact total cross sections of CHx, NHxand OH radicalsvis-à-vistheir parent molecules

Joshipura, K. N.; Vinodkumar, Minaxi; Patel, U.

doi:10.1088/0953-4075/34/4/301

Cited by 104 publications

(72 citation statements)

References 34 publications

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“…The calculation of the OH ionization cost within the framework of the model, which considers the passage of a monoenergetic electron flow (beam) through the medium, was carried out by formulas (5) to (10). In the calculations, we have used the process cross-sections shown in Figs.…”

Section: Resultsmentioning

confidence: 99%

“…Theoretical calculations of the total scattering cross-section σ tot (the sum of the cross-section σ el for elastic scattering and the total inelastic-scattering cross-section σ inel ) for electron collisions with hydroxyl radical can be found in refs. [9][10][11], where the authors calculated the σ tot values for the electron energy range from 30 to 5000 eV [9], 50 to 2000 eV [10], and 1 to 500 eV [11]. The cross-sections for elastic electron-OH scattering were calculated in paper [11] for the electron energy ranging from 1 to 500 eV.…”

Section: Elastic Scattering Cross-sectionsmentioning

confidence: 99%

“…The same table lists the oscillator strength values [13]. The cross-sections σ inel for inelastic electron-hydroxyl radical collisions (the sum of the (total) excitation cross-section σ ex and the (total) ionization cross-section σ i tot ) were calculated in the works [9] (up to 5000 eV), [10] (up to 2000 eV) and [11] (up to 500 eV). The excitation rate constants of the electron levels A 2 Σ + and B 2 Σ + were calculated in ref.…”

Section: Excitation Cross-sectionsmentioning

confidence: 99%

“…The process of dissociative OH ionization is also possible; it proceeds with the formation of ionic and neutral fragments. Theoretical calculations of the total cross-section for the hydroxyl radical electron-impact ionization were conducted in the works [10] (up to 2000 eV), [14] (up to 100 eV), [17] (up to 200 eV). The experimental data on the cross-section for the OD (Hydroxyl-d, deuterated OD radical) electron-impact ionizationwere obtained in [18] (up to 200 eV).…”

Section: Total Ionization Cross-sectionmentioning

confidence: 99%

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Calculation and comparative analysis of the mean energy expended per ion pair by electrons in water and hydroxyl radical

Kovtun¹

2017

energetika

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Researches of physical and chemical processes occurring in water during the interaction with particles (electrons, ions, photons, etc.) are interesting for a wide range of physical and applied problems in astrophysics, radiation physics, chemistry, medicine and biology, plasma physics, and other branches of science and technology. One of the directions, which invokes a considerable interest in low-temperature plasma physics and its application technologies, includes researches of electric discharges in the liquid and above its surface. While developing any technology, in which electric discharges in a liquid and above its surface will be used, the determination of the main channels of energy expenditure and, accordingly, the total amount of energy expenditure comprises an important task. One of the main channels of energy expenditures are those for ionization by an electron impact, or the so-called ionization cost W. The cost of ionization by an electron impact is usually assumed to be a certain mean value of energy spent by an electron for the formation of an ion-electron pair in the substance.The paper presents the results of calculations and comparison of the cost of ionization of water and hydroxyl radical by an electron impact on the basis of two models. The calculations based on the model with the passage of a monoenergetic electron flow (beam) with an energy of 14-1000 eV through the medium show that for an electron energy of 1000 eV, the ionization cost for the water molecule is W = 25.26 eV and W = 21.65 eV for the hydroxyl radical. The results of calculations show that the ionization cost for the model taking into account the electron energy distribution function in a plasma with T e = 100 eV, this value is W = 16.85 eV for the water molecule and W = 14.5 eV for the hydroxyl radical.

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Section: Resultsmentioning

confidence: 99%

Section: Elastic Scattering Cross-sectionsmentioning

confidence: 99%

Section: Excitation Cross-sectionsmentioning

confidence: 99%

Section: Total Ionization Cross-sectionmentioning

confidence: 99%

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Calculation and comparative analysis of the mean energy expended per ion pair by electrons in water and hydroxyl radical

Kovtun¹

2017

energetika

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“…In their calculations by the CSP-ic model they require proper value of Rp which requires a lot of experimental data [31] and as the experimental data for these targets are few, they have carried out the calculations with two approximate inputs of R p , i.e. R p = 0.7 and R p = 0.8 in their equation (7b) [16] and the second important point to be noted is that the CSP-ic model [31] basically comes from the modified additivity rule proposed by Joshipura and Patel [32] for electron-molecule scattering. In this approach they have separated electron -molecule interactions into short range and long range parts.…”

Section: Discussionmentioning

confidence: 99%

Electron-Impact Ionization of SiCl, $SiC_2$ and $SiCl_4$ Molecules

Pandya¹

2013

JAMS

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Abstract. Total ionization collision cross sections are calculated for silicon chloride compounds namely SiCl, SiCl 2 and SiCl 4 applying binary -encounter -Bethe (BEB) and modified BEB model for projectile energy from the ionization threshold to 1000 eV. The total ionization cross sections obtained using the binary-encounter-Bethe (BEB) model and the modified BEB model are compared with experimental and theoretical results. This model has been found to be successful for a wide range of molecules but for silicon chloride molecules the results are not in good agreement with experimental data.

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Calcitonin receptor‐like receptor (CLR), receptor activity‐modifying protein 1 (RAMP1), and calcitonin gene‐related peptide (CGRP) immunoreactivity in the rat trigeminovascular system: Differences between peripheral and central CGRP receptor distribution

Lennerz

Rühle

Ceppa

et al. 2008

J of Comparative Neurology

296

221

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Calcitonin gene-related peptide (CGRP) is a key mediator in primary headaches including migraine. Animal models of meningeal nociception demonstrate both peripheral and central CGRP effects; however, the target structures remain unclear. To study the distribution of CGRP receptors in the rat trigeminovascular system we used antibodies recognizing two components of the CGRP receptor, the calcitonin receptor-like receptor (CLR) and the receptor activity-modifying protein 1 (RAMP1). In the cranial dura mater, CLR and RAMP1 immunoreactivity (-ir) was found within arterial blood vessels, mononuclear cells, and Schwann cells, but not sensory axons. In the trigeminal ganglion, besides Schwann and satellite cells, CLR- and RAMP1-ir was found in subpopulations of CGRP-ir neurons where colocalization of CGRP- and RAMP1-ir was very rare ( approximately 0.6%). CLR- and RAMP1-ir was present on central, but not peripheral, axons. In the spinal trigeminal nucleus, CLR- and RAMP1-ir was localized to "glomerular structures," partly colocalized with CGRP-ir. However, CLR- and RAMP1-ir was lacking in central glia and neuronal cell bodies. We conclude that CGRP receptors are associated with structural targets of known CGRP effects (vasodilation, mast cell degranulation) and targets of unknown function (Schwann cells). In the spinal trigeminal nucleus, CGRP receptors are probably located on neuronal processes, including primary afferent endings, suggesting involvement in presynaptic regulation of nociceptive transmission. Thus, in the trigeminovascular system CGRP receptor localization suggests multiple targets for CGRP in the pathogenesis of primary headaches.

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Electron impact total cross sections of CH_x, NH_xand OH radicalsvis-à-vistheir parent molecules

Cited by 104 publications

References 34 publications

Calculation and comparative analysis of the mean energy expended per ion pair by electrons in water and hydroxyl radical

Calculation and comparative analysis of the mean energy expended per ion pair by electrons in water and hydroxyl radical

Electron-Impact Ionization of SiCl, $SiC_2$ and $SiCl_4$ Molecules

Calcitonin receptor‐like receptor (CLR), receptor activity‐modifying protein 1 (RAMP1), and calcitonin gene‐related peptide (CGRP) immunoreactivity in the rat trigeminovascular system: Differences between peripheral and central CGRP receptor distribution

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