Персона: Клячин, Николай Альбертович
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On the Feasibility of a Coulomb Explosion in a Micropinch
In this paper we present experimental data on the generation of ions with MeV-energy in a Z-pinch discharge in a heavy-element medium. The calculations show that the escape of runaway electrons from the constriction region can lead to the production of a positive volume charge and then to the Coulomb explosion of plasma, which generates high-energy particles.
A Compact Diffusion Chamber Used as a Sensitive Soft X-Ray Detector with Spatial Resolution
It has been demonstrated that a compact diffusion chamber is a high-efficiency X-ray detector in the spectral range of 0.17-0.20 nm. The camera has a high spatial resolution and a sensitivity sufficient for studying the features of the line spectrum of X-ray radiation from short-lived dense high-temperature plasma using diffraction spectroscopy methods.
A Method for Investigating Nanosecond Processes in Micropinch Discharge Plasma
Experimental Detection of the Signs of a Coulomb Explosion in Micropinch Plasma
© 2019, Pleiades Publishing, Ltd. Abstract: A flow of ions with energies of about 3 MeV propagating in the direction perpendicular to the symmetry axis of discharge has been detected in high-current low inductance vacuum spark. Estimations show that the measured ion energies quite well correspond to the value that can be achieved as a result of “Coulomb explosion” of the waist of a plasma channel of discharge current at the stage preceding its radiation compression.
About the feasibility of the Coulomb explosion in micropinch
© 2019 Federal Informational-Analytical Center of the Defense Industry. All rights reserved.Experimental data on the generation of MeV-energy ions in a Z-pinch discharge in a heavy element medium are presented The estimation calculations show that the departure of escaping electrons from the hauling region can lead to the creation of a positive volume charge in it and then to the Coulomb explosion of plasma, which generates high-energy particles.
Ectonic Model and Erosion Mechanisms in a Pulsed Vacuum Arc Initiated by a Spark Discharge along the Dielectric Surface
Measurements of the X-Ray Line Spectrum of a Micropinch Source by a High-Sensitive Track Detector
© 2019, Pleiades Publishing, Ltd.Abstract: The efficiency of the diffusion chamber as a tool for diagnostics of pulsed high-temperature plasma in a single discharge is demonstrated. Creation of a diffusion chamber operating at a temperature exceeding the temperature of the ambient medium will make it possible to simplify the device design and operation. Based on the experimental data obtained with the help of the diffusion chamber by means of diffraction spectroscopy, a hypothesis is put forward on the advanced development of electron acceleration processes compared to the process of micropinch plasma decay caused by anomalous plasma heating.
Coulomb Explosion of the Debye Layer As a Mechanism for the Formation of a High-Energy Ion Flow in the Plasma of a Micropinch Discharge
© 2021, Pleiades Publishing, Ltd.Abstract: Flows of ions with energies on the order of megaelectronvolts, which propagate both in the axial direction and in the direction perpendicular to the symmetry axis of the discharge, are recorded in a high-current low inductance vacuum spark. Estimates based on the measurements of the total charge of suprathermal electrons emitted from the region of the waist of the current channel in the axial direction, as well as the total number of ions of the indicated energies show that the recorded ion energies correspond quite well to the value that can be achieved as a result of the Coulomb explosion of the Debye waist layer at the stage preceding the radiation compression.
Distance Control at Lecture Demonstrations of General Physics Department of MEPhi
© 2020 The Authors. Published by Elsevier B.V.The report provides examples of the use of modern physical and multimedia equipment in lecture demonstrations of the Department of General Physics of MEPhI. The use of distance control technology with remote control for lecture demonstrations is discussed.