Results 31 to 40 of about 1,437,991 (290)
Optical second harmonic generation probe of two-dimensional ferroelectricity [PDF]
, 1999 Optical second harmonic generation (SHG) is used as a noninvasive probe of two-dimensional (2D) ferroelectricity in Langmuir-Blodgett (LB) films of copolymer vinylidene fluoride with trifluorethylene.
Aktsipetrov +16 more
core +2 more sources
Frontiers in Physics, 2017 This experimental study shows the validity of Sheridan's method in determining plasma density in low pressure, weakly magnetized, RF plasmas using ion saturation current data measured by a planar Langmuir probe.
Yunchao Zhang +2 more
doaj +1 more source
Effective collecting area of a cylindrical Langmuir probe in magnetized plasma
Physics of Plasmas, 2018 Langmuir probe diagnostic on magnetic plasma devices often encounters more challenges in data processing than in non-magnetized plasmas, the latest itself being far from simple.
M. Usoltceva +8 more
semanticscholar +1 more source
Low-current electronics schematic and design solutions for space plasma characteristics measurement [PDF]
Космические аппараты и технологииMeasurement of the main characteristics of ionospheric plasma – concentration, temperature, velocity and its composition – is the problem of measuring ultra-low currents from a practical point of view.
O. I. Rovnyakov +2 more
doaj +1 more source
Response of electrostatic probes to ionized gas flows in a shock tube [PDF]
, 1959 In his excellent analysis of electrical measurements in shock tube flows, Hollyer(1) has demonstrated certain pitfalls in the application of conventional Langmuir probe techniques to the evaluation of charge densities in the moving stream of hot gas ...
Grosse, Fred A., Jahn, Robert G.
core +1 more source
Designs of Langmuir probes for W7-X [PDF]
Fusion Engineering and Design, 2011 Abstract Several designs of Langmuir probes for the stellarator Wendelstein 7-X (W7-X) are described. Different types of probes are proposed for the different divertors to be used during different operational phases of W7-X. Comb-like arrays of stiff probes, arrays of flexible probes, and fixed inlay probes are reviewed. For the initial phase of W7-X
Laube, R. +4 more
openaire +3 more sources
Payload charging events in the mesosphere and their impact on Langmuir type electric probes [PDF]
Annales Geophysicae, 2013 Three sounding rockets were launched from Andøya Rocket Range in the ECOMA campaign in December 2010. The aim was to study the evolution of meteoric smoke particles during a major meteor shower.
T. A. Bekkeng +8 more
doaj +1 more source
The effect of surface contamination of tiny satellite on DC probe ionosphere measurement
AIP Advances, 2018 The DC Langmuir probe is a widely-used instrument for the plasma measurement in the space missions. But to apply DC Langmuir probe to a tiny satellite, such as a cubesat, for ionosphere study is difficult to get accurate electron density (ne) and ...
H. K. Fang +3 more
doaj +1 more source
Ram-wake effects on plasma current collection of the PIX 2 Langmuir probe [PDF]
, 1985 The Plasma Interaction Experiment 2 (PIX 2) Langmuir probe readings of the same polar magnetospheric regions taken on consecutive orbits showed occasional apparent densities as much as 10 times lower than the average, although each pass clearly showed ...
Ferguson, D. C.
core +1 more source
Angular dependence measurements of Magnum-PSI plasmas using MAST-U angled-tip Langmuir probes
Nuclear Materials and Energy, 2021 Measurements made using flush-mounted Langmuir probes in tokamaks are difficult to interpret when operating at grazing angles of magnetic field incidence due to the effects of sheath expansion on the probe collection area.
J. Leland +6 more
doaj +1 more source