Results 271 to 280 of about 34,611 (309)

Atomic-nitrogen production in a radio-frequency plasma source

Optics Letters, 1993
The first high-resolution study, to our knowledge, of the optical emission from an Oxford Applied Research MPD21 nitrogen-plasma source is reported. The spectroscopic results clearly show that the MPD21 nitrogen-plasma source generates an appreciable flux of nitrogen atoms.
R P, Vaudo, Z, Yu, J W, Cook, J F, Schetzina   +3 more
openaire   +2 more sources

Radio-frequency heating of fusion plasmas

1998
VTT Energy co-ordinates the national FFUSION research programme and the Finnish activities in the European fusion programme. Finnish fusion research was integrated into the European programme by the contract of association between Tekes and Euratom, which defines the research areas of the Association Euratom-Tekes.
Heikkinen, Jukka, Karttunen, Seppo, Pättikangas, Timo   +2 more
openaire   +3 more sources

Radio-frequency plasma transducer for use in harsh environments

Review of Scientific Instruments, 2007
We describe a compact transducer used to generate and modulate low-intensity radio-frequency atmospheric pressure plasma (RF-APP) for high temperature gap measurement and generation of air-coupled ultrasound. The new transducer consists of a quarter-wave transmission line where the ground return path is a coaxial solenoid winding.
Andrew, May, Emad, Andarawis
openaire   +2 more sources

[The effect of uvulopalatopharyngoplasty by radio frequency plasma].

Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery, 2011
To study the effect of uvulopalatopharyngoplasty(UPPP) by using radio frequency plasma on obstructive sleep apnea-hypopnea syndrome(OSAHS) with velopharyngeal obstruction.Eighty-one cases that were diagnosed as OSAHS with Velopharyngeal obstruction were randomized into two groups, UPPP group and radio frequency plasma Uvulopalatopharyngoplasty group ...
Mengling, Wei, Lingbo, Li, Huanhua, Qin
openaire   +1 more source

Operating a radio-frequency plasma source on water vapor

Review of Scientific Instruments, 2009
A magnetically enhanced radio-frequency (rf) plasma source operating on water vapor has an extensive list of potential applications. In this work, the use of a rf plasma source to dissociate water vapor for hydrogen production is investigated. This paper describes a rf plasma source operated on water vapor and characterizes its plasma properties using ...
Sonca V T, Nguyen, John E, Foster, Alec D, Gallimore   +2 more
openaire   +2 more sources

Radio-frequency opacity of a nonuniform plasma

Journal of Quantitative Spectroscopy and Radiative Transfer, 1965
Abstract The validity of a radiative transfer model applied to radio wave propagation in a nonuniform plasma is investigated with Maxwell field correlation functions. It is found that Oster's quasi-particle model of photon propagation in a general dispersive medium yields a different dependence of the absorption coefficient on refractive index than ...
openaire   +1 more source

Experimental test of models of radio-frequency plasma sheaths

Applied Physics Letters, 1997
The ion current and sheath impedance were measured at the radio-frequency-powered electrode of an asymmetric, capacitively coupled plasma reactor, for discharges in argon at 1.33–133 Pa. The measurements were used to test the models of the radio frequency sheath derived by Lieberman [IEEE Trans. Plasma Sci.
openaire   +1 more source

Structural characterization and enzymatic hydrolysis of radio frequency cold plasma treated starches

Journal of Food Science, 2022
Akua Y Okyere, G Boakye, Eric Bertoft
exaly  

Radio frequency characteristics of the plasma sheath

Physics Letters, 1964
openaire   +2 more sources

2. Radio frequency plasma excitation

Vacuum, 1979
M.J. St. Burden, K.B. Cross
openaire   +1 more source