Electron impact cross sections of vibrationally and electronically excited molecules

Yoon, Jung-Sik; Song, Mi‐Young; Kwon, Deuk-Chul; Choi, Hyung Rim; Kim, Chang-Geun; Kumar, Vijay

doi:10.1016/j.physrep.2014.06.001

Cited by 11 publications

(10 citation statements)

References 135 publications

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“…This cross section is up to two times larger for deuterium than hydrogen. 6,19 The lack of deuterium excitation cross-sectional data for the upper triples states (e.g., a 3 R þ g ; e 3 R þ u ; h 3 R þ g , etc.) decaying to b 3 R þ u and c 3 P u states do not allow concluding whether or not the molecular continuum emission is similarly proportional to the rates of dissociation and production of the metastable states for hydrogen and deuterium.…”

Section: Figmentioning

confidence: 99%

A study of VUV emission and the extracted electron-ion ratio in hydrogen and deuterium plasmas of a filament-driven H−/D− ion source

et al. 2019

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Section: Figmentioning

confidence: 99%

A study of VUV emission and the extracted electron-ion ratio in hydrogen and deuterium plasmas of a filament-driven H−/D− ion source

et al. 2019

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“…Many studies of DEA to biomolecules at elevated temperatures showed a so-called hot band transition at 0 eV, which was attributed to thermally excited rotational and vibrational modes, as seen in Figure 6. Electron impact cross sections, including elastic and inelastic processes, for the vibrationally and electronically excited molecules differ both in order of magnitude and/or the energetics for the formation of resonances from those for molecules in the ground state (Yoon et al 2014). Thus, determining electron impact cross sections for excited targets is important for radiation therapy research and other fields.…”

Section: Data Requirementsmentioning

confidence: 99%

“…Thus, determining electron impact cross sections for excited targets is important for radiation therapy research and other fields. A recent review discussed the need for more data and evaluated the cross sections available in literature for different processes (dissociation, ionisation and the attachment) for a few simple excited molecules such as H 2 , D 2 , T 2 , HD, HT, DT, N 2 , O 2 , and CO 2 (Yoon et al 2014). The data available is still extremely limited, especially for larger compounds such as biomolecules.…”

Section: Data Requirementsmentioning

confidence: 99%

Electron scattering from molecules and molecular aggregates of biological relevance

Gorfinkiel

Ptasińska

2017

J. Phys. B: At. Mol. Opt. Phys.

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In this Topical Review we survey the current state of the art in the study of low energy electron collisions with biologically relevant molecules and molecular clusters. We briefly describe the methods and techniques used in the investigation of these processes and summarise the results obtained so far for DNA constituents and their model compounds, amino acids, peptide and other biomolecules. The applications of the data obtained is briefly described as well as future required developments.

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“…The electron mean energy is about 1-10 eV in the DBD plasma [45,46]. The main reactions would be happened by electron impact with T e in different electron-volts as following [45,[47][48][49]: Table 1. Selected values of gas flow rate and the corresponding velocity in the discharge channel (with A c = 200.0 mm 2 ).…”

Section: Photoelectric Characteristicsmentioning

confidence: 99%

Regulation characteristics of oxide generation and formaldehyde removal by using volume DBD reactor

Chen

Gao

2017

Plasma Sci. Technol.

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Discharge plasmas in air can be accompanied by ultraviolet (UV) radiation and electron impact, which can produce large numbers of reactive species such as hydroxyl radical (OH•), oxygen radical (O•), ozone (O 3), and nitrogen oxides (NO x), etc. The composition and dosage of reactive species usually play an important role in the case of volatile organic compounds (VOCs) treatment with the discharge plasmas. In this paper, we propose a volume discharge setup used to purify formaldehyde in air, which is configured by a plate-to-plate dielectric barrier discharge (DBD) channel and excited by an AC high voltage source. The results show that the relative spectral-intensity from DBD cell without formaldehyde is stronger than the case with formaldehyde. The energy efficiency ratios (EERs) of both oxides yield and formaldehyde removal can be regulated by the gas flow velocity in DBD channel, and the most desirable processing effect is the gas flow velocity within the range from 2.50 to 3.33 m s −1. Moreover, the EERs of both the generated dosages of oxides (O 3 and NO 2) and the amount of removed formaldehyde can also be regulated by both of the applied voltage and power density loaded on the DBD cell. Additionally, the EERs of both oxides generation and formaldehyde removal present as a function of normal distribution with increasing the applied power density, and the peak of the function is appeared in the range from 273.5 to 400.0 W l −1. This work clearly demonstrates the regulation characteristic of both the formaldehyde removal and oxides yield by using volume DBD, and it is helpful in the applications of VOCs removal by using discharge plasma.

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Electron impact cross sections of vibrationally and electronically excited molecules

Cited by 11 publications

References 135 publications

A study of VUV emission and the extracted electron-ion ratio in hydrogen and deuterium plasmas of a filament-driven H−/D− ion source

A study of VUV emission and the extracted electron-ion ratio in hydrogen and deuterium plasmas of a filament-driven H−/D− ion source

Electron scattering from molecules and molecular aggregates of biological relevance

Regulation characteristics of oxide generation and formaldehyde removal by using volume DBD reactor

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