R. Pavlichenko
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View article: PORTABLE OZONE GENERATING DEVICE FOR WOUND TREATMENT: DEVICE PROGRAMMING AND FIRST TESTS ON ELIMINATION OF MICROORGANISMS
PORTABLE OZONE GENERATING DEVICE FOR WOUND TREATMENT: DEVICE PROGRAMMING AND FIRST TESTS ON ELIMINATION OF MICROORGANISMS Open
Hear we report the final results on developing the portable ozone generating device based on dielectric barrier discharge (DBD) used for antiseptic treatment of wounds at the stage of evacuation and pre-medical care for their further effec…
View article: DEVELOPMENT OF PORTABLE DEVICE BASED ON COLD ATMOSPHERIC PLASMA FOR SKIN DISINFECTION AND TREATMENT OF CHRONIC WOUNDS
DEVELOPMENT OF PORTABLE DEVICE BASED ON COLD ATMOSPHERIC PLASMA FOR SKIN DISINFECTION AND TREATMENT OF CHRONIC WOUNDS Open
A portable easy-to-use device based on cold atmospheric plasma (CAP) for skin disinfection and chronic wound treatment has been developed. Such an alternative treatment method for surface wounds utilizes charged and reactive species produc…
View article: EQUILIBRIUM IN HIGH BETA LOW MAGNETIC FIELD DISCHARGES OF URAGAN-2M
EQUILIBRIUM IN HIGH BETA LOW MAGNETIC FIELD DISCHARGES OF URAGAN-2M Open
It has been shown that the plasma beta (β = nT/(μ0∙B2)) is relatively high in low magnetic field (BT ≈ 0.01 T) radio frequency discharges of the URAGAN-2M (U-2M) stellarator. This high beta is achieved in the low temperature (Tₑ = (10…50) …
View article: FUSION RESEARCH IN STELLARATOR DEPARTMENT OF IPP NSC KIPT
FUSION RESEARCH IN STELLARATOR DEPARTMENT OF IPP NSC KIPT Open
This paper briefly describes intrinsic and collaborative scientific activities of the Stellarator Department (Institute of Plasma Physics of the National Science Center “Kharkiv Institute of Physics and Technology”) within last two years. …
View article: CONCERNING TOPOLOGY OF MAGNETIC SURFACES OF URAGAN-2M STELLARATOR
CONCERNING TOPOLOGY OF MAGNETIC SURFACES OF URAGAN-2M STELLARATOR Open
We present and discusses the magnetic surface structures of different Uragan-2M stellarator plasma configuration modes, where large magnetic islands or their remains at the edge of the plasma volume, thus, will lead to deterioration of per…
View article: PORTABLE OZONE GENERATING DEVICE FOR TREATMENT OF INFECTED WOUNDS
PORTABLE OZONE GENERATING DEVICE FOR TREATMENT OF INFECTED WOUNDS Open
Ozone therapy for treating wounds is not commonly used in many regards and such a technology is still being developed even with extremely promising results. The most important key of wound treatment with ozone is its ability to eliminate b…
View article: DEVELOPMENT AND OPTIMIZATION OF OZONE DESTRUCTOR FOR LOW-TEMPERATUTE PLASMA STERILIZER
DEVELOPMENT AND OPTIMIZATION OF OZONE DESTRUCTOR FOR LOW-TEMPERATUTE PLASMA STERILIZER Open
An ozone destructor for a plasma ozone sterilizer has been developed. This is an improved model of an ozone destructor, consisting of two parts, which significantly increases the contact area of activated carbon with ozone. This destructor…
View article: ICRF production of plasma with hydrogen minority in Uragan-2M stellarator by two-strap antenna
ICRF production of plasma with hydrogen minority in Uragan-2M stellarator by two-strap antenna Open
The experiments on medium-size stellarator Uragan-2M (U-2M) in Kharkiv, Ukraine, are carried on in support of the Wendelstein 7-X (W7-X) experimental program. The scenario ion cyclotron frequency range (ICRF) plasma production at the hydro…
View article: ICRF plasma production in gas mixtures in the Uragan-2M stellarator
ICRF plasma production in gas mixtures in the Uragan-2M stellarator Open
This paper summarizes previous results and presents new studies on the ICRF plasma creation both in pure gases and gas mixtures. In all the experiments, the two-strap antenna was operated in monopole phasing with applied RF power of ∼100 k…
View article: ICRF Plasma Production with Hydrogen Minority Heating in Uragan-2M and Large Helical Device
ICRF Plasma Production with Hydrogen Minority Heating in Uragan-2M and Large Helical Device Open
This report compares results ion-cyclotron range of frequencies (ICRF) plasma production at hydrogen minority regime in Uragan-2M (U-2M) and Large Helical Device (LHD). The condition of the presence of the fundamental harmonic ion cyclotro…
View article: TIME BEHAVIOR OF THE Hα SPECTRAL LINE AND THE MOLECULAR HYDROGEN SPECTRAL LINE IN HYDROGEN PLASMA IN THE URAGAN-2M STELLARATOR
TIME BEHAVIOR OF THE Hα SPECTRAL LINE AND THE MOLECULAR HYDROGEN SPECTRAL LINE IN HYDROGEN PLASMA IN THE URAGAN-2M STELLARATOR Open
The studies of the scenario of hydrogen plasma creation with two sequential RF discharges during one pulse were carried out for the Uragan-2M stellarator. The first-stage discharge initiated the hydrogen pre-ionization at the generator ano…
View article: COMPACT CORRUGATЕD HORN ANTENNA INITIAL DESIGN FOR MICROWAVE DIAGNOSTICS IN URAGAN-2M STELLARATOR
COMPACT CORRUGATЕD HORN ANTENNA INITIAL DESIGN FOR MICROWAVE DIAGNOSTICS IN URAGAN-2M STELLARATOR Open
In this paper, a well-known design procedure is proposed for the design of wideband constant-beam width conical corrugated horn antennas, with minimum design and construction complexity. The inputs to the procedure are the operating freque…
View article: On the Role of Runaway Electrons in Stimulating the RF Breakdown and Plasma Formation in Torsatrons Uragan-3M, Uragan-2M
On the Role of Runaway Electrons in Stimulating the RF Breakdown and Plasma Formation in Torsatrons Uragan-3M, Uragan-2M Open
We consider a scenario of the initial stage of the RF breakdown of a working gas in torsatrons Uragan-3M and Uragan-2M and the roles of runaway electrons in this process. In our previous works, we studied only the acceleration factor of th…
View article: DEVELOPMENT OF RENEWED WAWEGUIDE SYSTEM FOR MICROWAVE DIAGNOSTICS IN URAGAN-2M STELLARATOR
DEVELOPMENT OF RENEWED WAWEGUIDE SYSTEM FOR MICROWAVE DIAGNOSTICS IN URAGAN-2M STELLARATOR Open
This paper presents initial proposal for the development of quasi-optical (QO) microwave technology for Electron Cyclotron Emission (ECE) and reflectometry diagnostics in the Uragan-2M (U-2M) stellarator. For the existed ECE radiometer sys…
View article: ICRF Plasma Production with the W7-X Like Antenna in the Uragan-2M Stellarator
ICRF Plasma Production with the W7-X Like Antenna in the Uragan-2M Stellarator Open
The results of the plasma start-up with ICRH of U-2M RF discharges in H2+He mixture with newly implemented controlled gas H2 concentration are presented. The W7-X like ICRH antenna operated in monopole phasing with applied RF power of ∼ 10…
View article: DISTRIBUTION OF 0.2...4.5 keV PLASMA IONS IN SET OF U-2M DISCHARGES
DISTRIBUTION OF 0.2...4.5 keV PLASMA IONS IN SET OF U-2M DISCHARGES Open
Charge exchange (CX) neutral fluxes were measured by neutral particle analyzer (NPA) in plasma discharges sustained by the W7-X-like radio frequency (RF) antenna in the Uragan-2M (U-2M) stellarator. CX fluxes in pure hydrogen discharge (B0…
View article: DEVELOPMENTS FOR STELLARATOR-MIRROR FUSION-FISSION HYBRID CONCEPT
DEVELOPMENTS FOR STELLARATOR-MIRROR FUSION-FISSION HYBRID CONCEPT Open
Conceptual development activities on a stellarator-mirror-based fission-fusion hybrid system (SM hybrid) are reviewed.Intended for transmutation of spent nuclear fuel and safe fission energy production, SM hybrid consists of a fusion neutr…
View article: TORSATRON U-2M WITH REVERSED ADDITIONAL TOROIDAL MAGNETIC FIELD
TORSATRON U-2M WITH REVERSED ADDITIONAL TOROIDAL MAGNETIC FIELD Open
The torsatron U-2M magnetic system is equipped with 16 additional toroidal magnetic field coils.Under normal operating conditions the toroidal field coils create an additional toroidal magnetic field B 0 the direction of which coincides wi…
View article: TWO-STRAP RF ANTENNA IN URAGAN-2M STELLARATOR
TWO-STRAP RF ANTENNA IN URAGAN-2M STELLARATOR Open
A unshielded two-strap antenna had been installed in Uragan-2M.A vacuum chamber inner walls conditioning regime with the two-strap antenna is studied in a weak magnetic field.Plasma with the density n e ~(0.2...0.95)•10 12 сm -3 and sustai…
View article: STELLARATOR RESEARCH AT IPP KIPT: STATUS AND PROSPECTS
STELLARATOR RESEARCH AT IPP KIPT: STATUS AND PROSPECTS Open
Features of the recent Uragan-2M campaign are reviewed together with some theoretical advances. They include experiments with B4C limiter, studies of various 1…20 kHz oscillations, development of a new in-situ diagnostics for wall conditio…
View article: INFLUENCE OF WORKING GAS PULSE INJECTION AND FLUCTUATIONS OF THE MAGNETIC FIELD ON THE RUNAWAY ELECTRONS DYNAMICS IN URAGAN-3M
INFLUENCE OF WORKING GAS PULSE INJECTION AND FLUCTUATIONS OF THE MAGNETIC FIELD ON THE RUNAWAY ELECTRONS DYNAMICS IN URAGAN-3M Open
Generation of runaway electrons in fusion experiments can drive to serious damage of plasma devices components. Injection of gas with a large mass number decreases the generation processes. Also, magnetic perturbations decrease generation …
View article: INFLUENCE OF MOVABLE B4C-LIMITER ON CHARACTERISTICS OF RF DISCHARGE PLASMA IN THE URAGAN-2M TORSATRON
INFLUENCE OF MOVABLE B4C-LIMITER ON CHARACTERISTICS OF RF DISCHARGE PLASMA IN THE URAGAN-2M TORSATRON Open
A variant of the B4C movable biased pumped limiter for the Uragan-2M torsatron is described. Some results of experiments with the limiter moved from the vacuum chamber wall to the central region of the plasma column in the work mode of Ura…
View article: The problem of plasma density increasing in the U-3M torsatron after RF heating termination
The problem of plasma density increasing in the U-3M torsatron after RF heating termination Open
In the U-3M torsatron a significant chord-averaged plasma density increase is observed after the RF-heating termination. The objective of this work is to find out possible mechanisms resulting in plasma density increasing.