On the origin of visible continuum radiation in rare gas glow discharges

Rutscher, A.; Pfau, S.

doi:10.1016/0378-4363(76)90078-4

Cited by 24 publications

(20 citation statements)

References 14 publications

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“…Furthermore a weak continuum is investigated from 200 nm to 600 nm, which has not been identified so far. It is supposed that its origin is bremsstrahlung, as investigated by Rutscher and Pfau in the positive column of a glow discharge in noble gases at medium pressures [15].…”

Section: Statistics and Data Presentationmentioning

confidence: 99%

Antimicrobial Treatment of Heat Sensitive Materials by Means of Atmospheric Pressure Rf‐Driven Plasma Jet

Brandenburg¹,

Ehlbeck²,

Stieber³

et al. 2007

Contrib. Plasma Phys.

182

121

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Since several years a number of activities on the field of antimicrobial treatment by using non-thermal plasmas are known. But although there are quite a few plasma based processes commercially available, the complexity of interaction between plasma and micro organisms prevents the breakthrough of this technology up to now. Thus plasma generation and treatment method needs to be adapted for each individual application. The aim of this work is to demonstrate the industrial applicability of plasma technological processes for medical devices. Therefore a non-thermal plasma jet operated in argon at atmospheric pressure and driven by radio frequency (27.12 MHz) is applied to antimicrobial treatment of samples made of heat sensitive materials, such as used in medical devices. Due to its compact design and low power consumption, typical 10 W to 60 W, it is predestined for modularisation. Therefore it can be adapted to nearly any geometry such as given by medical devices to be treated. The plasma is characterised by UV/VIS optical emission spectroscopy. In order to analyse the effect of the plasma on the micro organisms (Bacillus atrophaeus spores and Escherichia coli vegetative bacteria) microbiological tests are performed. First results on lethal effects of the plasma treamtent will be discussed.

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Section: Statistics and Data Presentationmentioning

confidence: 99%

Antimicrobial Treatment of Heat Sensitive Materials by Means of Atmospheric Pressure Rf‐Driven Plasma Jet

Brandenburg¹,

Ehlbeck²,

Stieber³

et al. 2007

Contrib. Plasma Phys.

182

121

View full text Add to dashboard Cite

show abstract

“…In many models one is also interested in the production of excited atoms or molecules either for diagnostics or as an end product, as in an electrically excited laser (Bekefi, 1976). Recent work has shown the utility of free-free radiation excited in electron-atom or electron-molecule collisions as a diagnostic (Rutscher and Pfau, 1976;Winkler et al, 1978). Finally, one needs to consider the available information regarding the range of applicability of the hydrodynamic model.…”

Section: Electron Transport and Reactionmentioning

confidence: 99%

“…Recently measurements have been made of electron excitation coefficients for the production of free-free radiation in collisions between electrons and rare gas atoms (Rutscher and Pfau, 1976;Winkler et al, 1978;Yamabe and Phelps, 1981). The observation of free-free radiation by electrons in rare gases has been shown to be a useful discharge diagnostic (Rutscher and Pfau, 1976;Winkler et al, 1978).…”

Section: Electron Excitationmentioning

confidence: 99%

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Transport Data for the Modeling of Electrical Breakdown and Discharges

Phelps

1983

Electrical Breakdown and Discharges in Gases

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“…In our case the electron kinetic energy when hitting the first dynode is eV. Visible bremsstrahlung is often used in plasma diagnostics for temperatures eV K [13], [14]. There, it explains the origin of visible continuum radiation.…”

Section: A Light Emission Spectroscopy Resultsmentioning

confidence: 89%

Light Induced Afterpulses in Photomultipliers

Ahnen

Hose

Menzel

et al. 2015

IEEE Trans. Nucl. Sci.

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Various spurious effects limit the effectiveness of Photomultipliers when used in low-light-level coincidence counting experiments. One of these effects is afterpulses from light emission in the Photomultiplier. Here we present a study on the light emission in Photomultipliers using a variety of methods. First we image the light emission directly. Second we characterize the light emission spectrum. Finally we investigate the time resolved light emission. In particular we find that, not only the dynodes "glow," but also the support structure emits light. A fluorescent effect is found. The experiments performed help to understand the fundamental effects of light emission and afterpulses in Photomultipliers.

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On the origin of visible continuum radiation in rare gas glow discharges

Cited by 24 publications

References 14 publications

Antimicrobial Treatment of Heat Sensitive Materials by Means of Atmospheric Pressure Rf‐Driven Plasma Jet

Antimicrobial Treatment of Heat Sensitive Materials by Means of Atmospheric Pressure Rf‐Driven Plasma Jet

Transport Data for the Modeling of Electrical Breakdown and Discharges

Light Induced Afterpulses in Photomultipliers

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