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Using particle accelerators to investigate the quark-gluon plasma of the infant universe
QGP atom neutron
2021/8/10
A new special edition of EPJ Special Topics brings together several papers that detail our understanding of Quark-Gluon Plasma (QGP) and the processes that transformed it into the baryonic matter we a...
Answers to some salient questions, which arise in quantum plasmas, are given. Starting from the Schr\"{o}dinger equation for a single particle it is demonstrated how the Wigner-Moyal equation can be d...
Effect of Warm Ionized Plasma Medium on Radiation Properties of Four Elements Microstrip Antenna Array Printed on Ferrite Substrate
Microstrip Antenna Array Ferrite Plasma Medium
2010/6/30
This paper describes theoretically the radiation properties of four element microstrip antenna array printed upon a typical ferrite substrate Ni1.062Co0.o2Fe1.948O4 in the presence of normal dc magnet...
Surface-Wave Instabilities in a Plasma Rotating with Step-like Frequency Profile
Magnetorotational instability Plasma rotational instability
2010/7/5
An approach for the theory of nonlocal magnetorotational and convective instabilities in a rotating plasma is developed, on the basis of the surface wave concept, which allows the derivation of useful...
Effects of Plasma Immersion Ion Implantation (PIII) of Nitrogen on Hardness, Composition and Corrosion Resistance of Ti-6Al-4V Alloy
Corrosion Hardness Plasma immersion ion implantation Ti-6Al-4V X-ray diffraction
2010/9/29
Ti-6Al-4V samples have been treated by PIII processing at different temperatures (400-800 ° C), treatment time (30-150 min) and plasma potential (100 and 420 V). Hardness measurements results showed a...
Hydrodynamic Model for the Plasma-Gas Flow in a Cutting Torch Nozzle
Hydrodynamic Model the Plasma-Gas Flow a Cutting Torch Nozzle
2010/10/26
We present a simple hydrodynamic model to obtain the profiles of the relevant physical quantities along a nozzle of arbitrary cross-section in a cutting torch. The model uses a two-zone approximation ...
Detection of Water by Neutron Scattering Using a Small Plasma Focus
Water Neutron Scattering a Small Plasma Focus
2010/10/27
A compact Plasma Focus operated in deuterium which produces 2 108 neutrons per pulse, has been used as a radiation source for water detection by neutron scattering. The detecting system is composed by...
Determination of Plasma Temperature by a Semi-Empirical Method
Plasma Temperature a Semi-Empirical Method
2010/10/27
Doppler or Stark line broadening effects are generally used to determinate plasma temperature. These methods are difficult to apply to spectra of highly ionized atoms due to the short wavelengths invo...
Pulsed Power Modulators for Surface Treatment by Plasma Immersion Ion Implantation
Pulsed Power Surface Treatment Plasma Immersion Ion Implantation
2010/10/27
The treatment of surfaces by plasma immersion ion implantation requires pulsed power modulators to provide negative high voltage pulses. To achieve this requirement, we have developed three basic circ...
Behavior of Linear Beam-Plasma Instabilities in the Presence of Finite Amplitude Circularly Polarized Waves
Linear Beam-Plasma Instabilities Finite Amplitude Circularly Polarized Waves
2010/10/27
We review the effect of finite amplitude circularly polarized waves on the behavior of linear ion-beam plasma instabilities. It has been shown that left-hand polarized waves can stabilize linear right...
Evidence of Plasma Resonance Instability from Observations of Solar Decimetric Fine Structures
Plasma Resonance Solar Decimetric Fine Structures
2010/10/27
The solar radio emissions in the decimetric frequency range (above 1000 MHz) are very rich in temporal and/or spectral fine structures. The Brazilian Solar Spectroscope (BSS) at INPE started operating...