Diagnostics and Investigations of the Plasma and Field Properties in Pulsed-Plasma Configurations

Tsigutkin, K.; Kroupp, E.; Stambulchik, E.; Osin, D.; Doron, R.; Arad, R.; Starobinets, A.; Maron, Y.; Uschmann, I.; Förster, E.; Fisher, A.

doi:10.1541/ieejfms.124.501

Cited by 5 publications

(2 citation statements)

References 31 publications

(24 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2p-4f), allowing for the determination of such fields. Indeed, such measurements have been employed in several experiments [1][2][3][4][5]. For relatively low electric fields ( 20 kV/cm), the 4d-4f mixing coefficient is inversely proportional to the energy separation between the 4d and 4f levels.…”

Section: Introductionmentioning

confidence: 99%

Determination of the Li I 4d–4f Energy Separation Using Active Spectroscopy

Tsigutkin¹,

Stambulchik²,

Maron³

et al. 2005

Phys. Scr.

View full text Add to dashboard Cite

An accurate knowledge of the Li i 4d-4f energy separation is essential for the determination of electric fields, as is pursued using several modern diagnostic techniques. However, there is a rather large spread in the values of this quantity in the available data sources. We have measured the Li i 4d-4f energy separation using a technique that combines laser-induced-fluorescence with the utilization of collisional excitations. The plasma used for these measurements is laser-produced, which allows for selection of an electron-density range for which line shifts due to the plasma microfields are sufficiently small. An observation of the forbidden 2p-4f line provides the information on the microfields that allows for accounting for the Stark-shifts and evaluating the 4d-4f energy separation in the field-free limit. A comparison of the measured value with a few previous measurements allows for resolving the uncertainties in this quantity.

show abstract

Section: Introductionmentioning

confidence: 99%

Determination of the Li I 4d–4f Energy Separation Using Active Spectroscopy

Tsigutkin¹,

Stambulchik²,

Maron³

et al. 2005

Phys. Scr.

View full text Add to dashboard Cite

show abstract

“…Several techniques have been used to overcome the restrictions to generate non-thermal plasma at atmospheric pressure such as using Dielectric-barrier discharges (DBD) [4], pulsed power source [5], segmented cathode [6], and the micro-hollow cathode system [7]. Moreover, some investigators used gliding arc discharge and some others use several types of plasma jets [8].…”

Section: Introductionmentioning

confidence: 99%

Susceptibility of Staphylococcus epidermidis to Argon Cold Plasma Jet by Oxygen Admixture

et al. 2021

View full text Add to dashboard Cite

Cold atmospheric pressure sterilization is one of the nominated and efficient techniques to prevent the spread of diseases. Reactive species such as O and OH and other radicals play a major role in the mechanism of plasma sterilization. Therefore, in this work, oxygen was mixed with different parentage from (0.2 to1.2%) to argon to enhance the generation of the reactive species and increase the argon atmospheric pressure plasma sterilization efficacy. The emission spectra from the jet increase the radicle line intensities by increasing the percentage admixture of O2 with the argon gas to reach a maximum power at 0.8; then, it gradually decreases with a higher O2 percentage. The OH band intensity decreases with increasing the admixture of O2. The jet with different O2 percentages was tested against Gram-positive S. epidermidis, which is the causal agent of nosocomial infections. The maximum reduction in colony-forming units (CFU) was observed at 0.2% O2. No bacterial growth was observed at the later concentration applied for 8 min and the same case was detected at 0.4% O2 applied to 16 min.

show abstract