The kinetics of β and γ band quenching in the nitric oxide afterglow

Campbell, Ian; Mason, Robert

doi:10.1016/0047-2670(78)80034-3

Cited by 36 publications

(5 citation statements)

References 30 publications

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“…Another possible channel for NO formation, the three-body atomic association (R11), can be neglected comparing rates for (R26) and (R10), and assuming N 2 (A 3 + u ) > N( 4 S). In fact, we have never been able to observe any emission of β or δ NO systems that could demonstrate the presence of the (R11) associative process [25].…”

Section: Streamer Induced Post-discharge Kinetics Ofmentioning

confidence: 76%

Excitation of ) and ) states in a pulsed positive corona discharge in , - and -NO mixtures

Šimek

Babický

Člupek

et al. 1998

J. Phys. D: Appl. Phys.

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Time resolved multichannel emission spectroscopy has been applied to study emission in the 200-500 nm spectral range produced by a pulsed positive corona discharge. The discharge was driven in coaxial geometry by an HV power supply (100 kV/1 kA) at atmospheric pressure in nitrogen, and in and mixtures. Emission of NO- (-) and 2.PG (-) bands has been studied in order to trace the development of and electronic states during both discharge and post-discharge periods. Analysis of spectroscopic data indicates an evolution of the electron mean energy during the discharge pulse in the range 20-1 eV and post-discharge kinetics of the NO and electronic states which is predominantly controlled by , v = 0,1) metastable species.

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Section: Streamer Induced Post-discharge Kinetics Ofmentioning

confidence: 76%

Excitation of ) and ) states in a pulsed positive corona discharge in , - and -NO mixtures

Šimek

Babický

Člupek

et al. 1998

J. Phys. D: Appl. Phys.

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“…There are two general mechanisms which can explain the results above described: (i) unequal quenching 21,22) or relaxation 24,25) rates on different vibrational quantum levels of NO A 2 + by O 2 and O, which can lead to an irregular vibrational population at different vibrational quantum levels, and (ii) as the N 2 concentration decreases, the collisions between N 2 and NO also decrease, so that the excitation reaction (3) loses its weight in the whole NO A 2 + excitation kinetics. If we consider the previous studies on N 2 -O 2 mixture plasma, 17,18) the excitation process of NO A 2 + relates closely to O 2 partial pressure.…”

Section: Resultsmentioning

confidence: 99%

Spectroscopic determination of vibrational and rotational temperatures of NO molecules in N₂–O₂mixture microwave discharge

Tan¹,

Nezu²,

Matsuura³

et al. 2014

Jpn. J. Appl. Phys.

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By using an optical emission spectroscopic measurement method, the vibrational and rotational temperatures of nitrogen monoxide molecules are obtained for N2–O2 mixture microwave discharge plasma. We experimentally observed the γ-band (195–340 nm) spectrum of nitrogen monoxide. We also developed a method of theoretical calculation for its vibrational and rotational spectrum, with which we can fit the experimental results theoretically, so that the vibrational and rotational temperatures can be determined. Some experiments are carried out to examine relaxation process of excited states of the N2–O2 gas mixture plasma together with its N2 ratio dependence. We discussed the dominant molecular processes and excitation kinetics for the formation of NO A 2Σ+ state under different discharge conditions, particularly on the N2–O2 mixture ratio.

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“…Numerous studies have been performed to understand the population of NO electronic states arising from collisions between molecules and to clarify the recombination reaction of N and O atoms. 9,[22][23][24][25][26] Excitations of the NO A 2 Σ + and C 2 Π states should be considered under our plasma conditions. The elementary excitation processes are summarized in Table II.…”

Section: Heavy Particle Collisionsmentioning

confidence: 99%

“…(ii) Since Campbell and Mason have reported that the bottom of the NO a 4 Π potential curve lies almost directly below that of NO B 2 Π, 24) it consequently has a much larger internuclear distance than NO A 2 Σ + . Moreover, Campbell and Mason proposed an almost exact energy resonance for the process shown in Eq.…”

Section: βAnd δ-Bandsmentioning

confidence: 99%

Kinetic model and spectroscopic measurement of NO (A, B, C) states in low-pressure N₂–O₂microwave discharge

Tan¹,

Nezu²,

Akatsuka³

2015

Jpn. J. Appl. Phys.

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A self-consistent kinetic model is developed to study the atomic and molecular processes in the microwave discharge plasma of N 2 -O 2 mixtures. We focus on the NO A 2 Σ + , B 2 Π, and C 2 Π states in the mixture discharge. We find good agreement between the calculated and experimental NO A 2 Σ + densities. On the other hand, the radiation bands from the NO B 2 Π and C 2 Π states are observed only when the oxygen partial pressure is less than 3%. We discuss the de-excitation processes for the NO B 2 Π and C 2 Π states in this low-pressure plasma. We also propose that the de-excitation processes involve collision with O 2 X 3 AE À g for these levels, which can explain the observed spectral disappearance.

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The kinetics of β and γ band quenching in the nitric oxide afterglow

Cited by 36 publications

References 30 publications

Excitation of ) and ) states in a pulsed positive corona discharge in , - and -NO mixtures

Excitation of ) and ) states in a pulsed positive corona discharge in , - and -NO mixtures

Spectroscopic determination of vibrational and rotational temperatures of NO molecules in N₂–O₂mixture microwave discharge

Kinetic model and spectroscopic measurement of NO (A, B, C) states in low-pressure N₂–O₂microwave discharge

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The kinetics of β and γ band quenching in the nitric oxide afterglow

Cited by 36 publications

References 30 publications

Excitation of ) and ) states in a pulsed positive corona discharge in , - and -NO mixtures

Excitation of ) and ) states in a pulsed positive corona discharge in , - and -NO mixtures

Spectroscopic determination of vibrational and rotational temperatures of NO molecules in N2–O2mixture microwave discharge

Kinetic model and spectroscopic measurement of NO (A, B, C) states in low-pressure N2–O2microwave discharge

Contact Info

Product

Resources

About

Spectroscopic determination of vibrational and rotational temperatures of NO molecules in N₂–O₂mixture microwave discharge

Kinetic model and spectroscopic measurement of NO (A, B, C) states in low-pressure N₂–O₂microwave discharge