A.E. Litvinov
A5002374485- Magnetic confinement fusion research
- Fusion materials and technologies
- Plasma Diagnostics and Applications
- Atomic and Subatomic Physics Research
- Ionosphere and magnetosphere dynamics
- Superconducting Materials and Applications
- Laser-Plasma Interactions and Diagnostics
- Solid State Laser Technologies
- Nuclear Physics and Applications
- Diamond and Carbon-based Materials Research
- Laser Design and Applications
- Particle accelerators and beam dynamics
- Nuclear Materials and Properties
- Nuclear materials and radiation effects
- Atomic and Molecular Physics
- Magneto-Optical Properties and Applications
- Laser-induced spectroscopy and plasma
- Optical Systems and Laser Technology
- Non-Destructive Testing Techniques
- Electromagnetic Launch and Propulsion Technology
- Optical measurement and interference techniques
- Surface Roughness and Optical Measurements
- Optical properties and cooling technologies in crystalline materials
- Metal and Thin Film Mechanics
State Scientific Center - Research Institute of Atomic Reactors
2022
Ioffe Institute
2014-2021
Russian Academy of Sciences
2013
Gamma-ray spectrometry on ITER can provide information both confined fusion alpha particles for optimization of plasma heating and runaway electrons, which is important safe reactor operations. For the purpose deconvolution gamma-ray spectra recorded in experiments DeGaSum code has been developed. The be applied processing monoenergetic gamma rays, are born nuclear reactions produced by other fast ions, continuous bremsstrahlung generated electrons MeV range structure materials. spectrometer...
This paper describes the challenges of Thomson Scattering implementation in ITER divertor and evaluates capability to satisfy project requirements related range measured electron temperature density. A number aspects data interpretation are also discussed. Although this assessment proposed solutions considered terms compatibility, they may be some use currently operating magnetic confinement devices.
Almost all optical diagnostic systems in ITER will require the implementation of mirror recovery and protection systems. Plasma cleaning is considered to be most promising technique for removal metal deposits from surfaces. The engineering physical aspects RF discharge application continuous or periodic plasma treatment are discussed with a focus on under conditions. ion flux parameters obtained capacitively coupled (CC) were measured mock-up system. uniformity sputtering CC without magnetic...
Divertor Thomson scattering (DTS) and laser-induced fluorescence (LIF) are both laser aided diagnostics well suited to combination with common probing collecting optics that the most sophisticated expensive part of any ITER optical diagnostic system. The DTS LIF used for simultaneous measurement local electron (Te, ne), ion (Ti, nHeII) atom (nHeI, nH(D,T)) parameters provide basic information on rates processes allow understanding physics divertor plasma detachment. measured permit...
The development of the first mirror cleaning and recovery system is one challenges for all optical diagnostics in ITER. This study focused on capacitively coupled radio frequency (CCRF) discharge as a promising method removal metal deposits. physical aspects RF application are discussed with focus implementation under ITER conditions. effective sputtering rates Be, W Mo were calculated function applied absorbed power noble gases—He, Ne, Ar, Kr, Xe, taking into account complex shape ion...
Abstract Tritium retention inside the vacuum vessel is a potentially serious constraint in operation of large-scale fusion machines like ITER. An situ diagnostics for first wall H/D/T by laser induced desorption spectroscopy (LIDS) proposed use between plasma discharges. The technique based on local baking irradiation and subsequent analysis in-vessel gas optical emission radiation. heating implementation, kinetics thermal extraction accuracy measurements are analysed. To resolve lines...
Recent research at three small tokamaks with different parameters located the Ioffe Institute—the spherical tokamak Globus-M, large aspect ratio FT-2 and compact TUMAN-3M—are reviewed. This overview covers energy confinement (Globus-M FT-2), L–H transition (TUMAN-3M Alfvén waves TUMAN-3M), ion cyclotron emission (TUMAN-3M), major plasma discharge disruption (Globus-M) scrape-off layer studies. A full-f global gyrokinetic modeling benchmark using synthetic diagnostics in is described....
Incoherent Thomson scattering diagnostics (TS) is a proven technique capable of reliable and robust instantaneous measurement electron temperature (Te) density (ne) local values in wide area plasma physics experiments: from hall-effect thrusters to tokamaks stellarators. The TS cross section very low (∼ 6.7 × 10−30 m2), the corresponding signals, measured fusion experiments, are usually ∼10−15 incident power. This paper represents 6 (7) channel filter polychromator equipped with avalanche...
Abstract There are several protecting techniques managing with contamination on optical surfaces of in-vessel diagnostic components in ITER. Analysis impurity transport narrow and curved gaps gave us the idea that it can’t be explained by convection flows. The proposed construction, situated between plasma irradiating laser mirror launcher, was analysed for effectiveness. ability this construction is based principles hydrodynamic, particular bevelled entrance, which provides redirection...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation E. Mukhin, G. S. Kurskiev, Yu. Tolstyakov, A. B. Kukushkin, P. Andrew, I. M. Bukreev, V. Chernakov, Kochergin, N. Koval, Litvinov, Masyukevich, Razdobarin, Semenov, Sdvizhenskii; Thomson scattering for core plasma on DEMO. AIP Conf. Proc. 21 August 2014; 1612 (1): 69–72. https://doi.org/10.1063/1.4894026...
ПРИМЕНЕНИЕ ПРОТОТИПА ЦИФРОВОГО ПОЛИХРОМАТОРА ДЛЯ ИЗМЕ-РЕНИЙ КИНЕТИЧЕСКИХ ПАРАМЕТРОВ ПЛАЗМЫ ТОКАМАКА ГЛОБУС-М МЕТОДОМ ТОМСОНОВСКОГО РАССЕЯНИЯВ.В.Солоха 1, 3 , Г.С.Курскиев 1 Е.Е.Мухин С.Ю.Толстяков А