Production of a 95% proton yield beam in a semicylindrical plasma generator

1991 ◽  
Vol 62 (9) ◽  
pp. 2142-2145 ◽  
Author(s):  
Kazuhiro Watanabe ◽  
Masanori Araki ◽  
Masayuki Dairaku ◽  
Hiroshi Horiike ◽  
Yoshihiro Ohara ◽  
...  
Keyword(s):  
Plasma Generator ◽  
Proton Yield

DEVELOPMENT OF A LARGE PLASMA GENERATOR WITH HIGH PROTON YIELD

1989 ◽  
pp. 647-651
Author(s):  
K. WATANABE ◽  
M. ARAKI ◽  
M. HANADA ◽  
H. HORIIKE ◽  
T. INOUE ◽  
...  
Keyword(s):  
Plasma Generator ◽  
High Proton ◽  
Proton Yield

SPECTRAL AND OPTICAL RESEARCHES OF A TORCH OF STEAM-AIR PLASMA GENERATOR OF ALTERNATING CURRENT

2009 ◽  
Vol 13 (2) ◽  
pp. 189-193
Author(s):  
A. V. Surov ◽  
A. V. Pavlov ◽  
A. V. Nikonov ◽  
R. V. Ovchinnikov ◽  
V. A. Spodobin ◽  
...  
Keyword(s):  
Plasma Generator ◽  
Alternating Current ◽  
Air Plasma

RFI and ECH plasma generator development for ion thrusters

1982 ◽  
Author(s):  
H. GOEDE ◽  
W. DIVERGILIO ◽  
V. FOSNIGHT ◽  
G. KOMATSU
Keyword(s):  
Plasma Generator ◽  
Ion Thrusters ◽  
Generator Development

scholarly journals The Assessment of Carbon Dioxide Dissociation Using a Single-Mode Microwave Plasma Generator

Molecules ◽  
2020 ◽  
Vol 25 (7) ◽  
pp. 1558 ◽  
Author(s):  
George Mogildea ◽  
Marian Mogildea ◽  
Cristina Popa ◽  
Gabriel Chiritoi
Keyword(s):  
Carbon Dioxide ◽  
Microwave Plasma ◽  
Focal Point ◽  
Single Mode ◽  
Plasma Generator ◽  
High Energy ◽  
High Electron ◽  
Space Applications ◽  
Plasma Characterization ◽  
Co2 Atmosphere

This paper focuses on the dissociation of carbon dioxide (CO2) following the absorption processes of microwave radiation by noncontact metal wire (tungsten). Using a microwave plasma generator (MPG) with a single-mode cavity, we conducted an interaction of microwaves with a noncontact electrode in a CO2 atmosphere. High energy levels of electromagnetic radiation are generated in the focal point of the MPG’s cylindrical cavity. The metal wires are vaporized and ionized from this area, subsequently affecting the dissociation of CO2. The CO2 dissociation is highlighted through plasma characterization and carbon monoxide (CO) quantity determination. For plasma characterization, we used an optical emission spectroscopy method (OES), and for CO quantity determination, we used a gas analyzer instrument. Using an MPG in the CO2 atmosphere, we obtained a high electron temperature of the plasma and a strong dissociation of CO2. After 20 s of the interaction between microwaves and noncontact electrodes, the quantity of CO increased from 3 ppm to 1377 ppm (0.13% CO). This method can be used in space applications to dissociate CO2 and refresh the atmosphere of closed spaces.

A stabilized pulsed repetition-rate CO2 laser for a laser-plasma generator of multiply charged ions

2012 ◽  
Vol 55 (3) ◽  
pp. 399-406 ◽  
Author(s):  
Yu. A. Satov ◽  
B. Yu. Sharkov ◽  
N. N. Alekseev ◽  
A. V. Shumshurov ◽  
A. N. Balabaev ◽  
...  
Keyword(s):  
Co2 Laser ◽  
Laser Plasma ◽  
Repetition Rate ◽  
Plasma Generator ◽  
Multiply Charged Ions ◽  
Multiply Charged ◽  
Charged Ions

Lowtemperature plasma generator for effective processing of materials

2021 ◽  
Vol 77 (5) ◽  
pp. 587-592
Author(s):  
M. Kh. Gadzhiev ◽  
A. S. Tyuftyaev ◽  
Yu. M. Kulikov ◽  
M. A. Sargsyan ◽  
D. I. Yusupov ◽  
...  
Keyword(s):  
Low Temperature ◽  
Flow Rate ◽  
Gas Flow ◽  
Arc Discharge ◽  
Plasma Jet ◽  
Plasma Generator ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
High Enthalpy ◽  
High Resource

Low-temperature plasma is used in metallurgy for steel alloying by nitrogen, deoxidization of magnetic alloys, obtaining of steels with particularly low carbon content, metal cleaning of nonmetallic inclusions, desulfurization and other refining processes. The wide application of those technologies is restrained by absence of reliable generators of low-temperature plasma (GLP) with sufficient resource of continuous operation. As a result of studies, a universal generator of high-enthalpy plasma jet of various working gases was created. The generator has expanding channel of the output electrode with an efficiency of ~60 % for argon working gas and ~80% for nitrogen and air. It was shown that the developed generator of low-temperature plasma ensures formation of a weakly diverging (2α = 12°) plasma jet with a diameter D = 5–12 mm, an enthalpy of 5–50 kJ/g and a mass average temperature of 5–10 kK, at a full electric power of the arc discharge of 5–50 kW and a plasma-forming gas flow rate of 1–3 g/s. Results of the study of propane additions to the plasma-forming gas effect on the state of cathodes with inserts made of pure tungsten, lanthanum tungsten, and hafnium presented. It was shown that a small propane addition (1%) to the plasma-forming gas, results in reducing effect of the insert material. Study of the GLP operation at arc current 100A with addition to the working gas nitrogen maximum possible volume of propane, which don’t disturb stability of arc showed that for the developed plasma generator at the nitrogen flow rate ~0,45 g/s, the propane flow rate was ~0,33 g/s (not more than ~73 % of the plasma-forming gas). The created high-resource GLP with changeable electrodes enables to obtain at the exit a high-enthalpy plasma flow of various gases (argon, nitrogen, air) and can be a prototype of more powerful plasmotrons of various technological application, in particular for plasma metallurgy.

The impact of the workability of an automated technological system on the effective implementation of the production program when processing tools in glow discharge plasma generators

2021 ◽  
pp. 58-65
Author(s):  
V.A. Logvin ◽  
◽  
S.A. Sheptunov ◽  
Keyword(s):  
Glow Discharge ◽  
Discharge Plasma ◽  
Functional Dependence ◽  
Plasma Generator ◽  
Glow Discharge Plasma ◽  
Optimal Time ◽  
Time Interval ◽  
Production Program ◽  
The Impact ◽  
Plasma Generators

The conditions for the hardening of tools in accordance with the author’s technological routes in the optimal time interval are considered using the functional dependence of the serviceability of plasma generators. This dependence takes into account the workability of the technical devices involved in processing the laying batch of tools in the speci ed time interval. The probability of performing the production process in the estimated time is represented by the product of the trouble-free operation of each glow discharge plasma generator involved in the nishing processing of tools that require a different type of plasma exposure in a certain sequence and duration.

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