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Experiments on the laser injection of impurity atoms at the Uragan-3 torsatron; Ehksperimenty po lazernoj inzhektsii primesnykh atomov na torsatrone Uragan-3

Technical Report:

Abstract

Experiments on carbon atom injection into ICR-discharge hydrogen plasma (n-bar{sub e}=4x10{sup 12} cm{sup -3}, T{sub e}{approx_equal}250 eV, T{sub i}{approx_equal}350 eV, B{sub 0}=046Tl) are conducted at a three-pass Uragan-3 torsatron. Injection is perormed by ruby laser radiation effect on the surface of steady-state graphite target, mounted on the internal surface of one of screw conductors. Comparison of the experimentally observed time course of C5 line intensity to the results of mathematic simulation of carbon transfer in plasma gives the values of diffusion coefficient and convection rate D=18x10{sup 3}cm{sup 2}/s, V=4.5x10{sup 3}cm/s respectively is performed. The minimal carbon atom concentration in plasma measured (without injection) is at the level of 5x10{sup -3}n-bar{sub e}. Radiation losses conditioned by the background carbon under the conditions of the purest unit are at the level of 200 W. Radiation losses in the range of 0.1-10nm, linked with carbon, make up {approx}2% of total radiation losses of plasma. 20 refs.; 13 figs.
Authors:
Berezhnyj, V L; Vojtsenya, V S; Volkov, Ya F [1] 
  1. and others
Publication Date:
Dec 31, 1989
Product Type:
Technical Report
Report Number:
KFTI-89-48
Reference Number:
SCA: 700300; PA: AIX-22:082046; SN: 91000609062
Resource Relation:
Other Information: PBD: 1989
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; TORSATRON STELLARATORS; IMPURITIES; NEUTRAL ATOM BEAM INJECTION; CARBON IONS; ELECTRON DENSITY; ELECTRON TEMPERATURE; ENERGY LOSSES; ION TEMPERATURE; LASER RADIATION; LINE BROADENING; MAGNETIC SURFACES; PLASMA DIAGNOSTICS; QUANTITY RATIO; SPATIAL DISTRIBUTION; TOROIDAL FIELD DIVERTORS; 700300; PLASMA PHYSICS AND FUSION RESEARCH
OSTI ID:
10106134
Research Organizations:
AN Ukrainskoj SSR, Kharkov (Ukraine). Fiziko-Tekhnicheskij Inst.
Country of Origin:
Ukraine
Language:
Russian
Other Identifying Numbers:
Other: ON: DE92609372; TRN: UA9100093082046
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
24 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Berezhnyj, V L, Vojtsenya, V S, and Volkov, Ya F. Experiments on the laser injection of impurity atoms at the Uragan-3 torsatron; Ehksperimenty po lazernoj inzhektsii primesnykh atomov na torsatrone Uragan-3. Ukraine: N. p., 1989. Web.
Berezhnyj, V L, Vojtsenya, V S, & Volkov, Ya F. Experiments on the laser injection of impurity atoms at the Uragan-3 torsatron; Ehksperimenty po lazernoj inzhektsii primesnykh atomov na torsatrone Uragan-3. Ukraine.
Berezhnyj, V L, Vojtsenya, V S, and Volkov, Ya F. 1989. "Experiments on the laser injection of impurity atoms at the Uragan-3 torsatron; Ehksperimenty po lazernoj inzhektsii primesnykh atomov na torsatrone Uragan-3." Ukraine.
@misc{etde_10106134,
title = {Experiments on the laser injection of impurity atoms at the Uragan-3 torsatron; Ehksperimenty po lazernoj inzhektsii primesnykh atomov na torsatrone Uragan-3}
author = {Berezhnyj, V L, Vojtsenya, V S, and Volkov, Ya F}
abstractNote = {Experiments on carbon atom injection into ICR-discharge hydrogen plasma (n-bar{sub e}=4x10{sup 12} cm{sup -3}, T{sub e}{approx_equal}250 eV, T{sub i}{approx_equal}350 eV, B{sub 0}=046Tl) are conducted at a three-pass Uragan-3 torsatron. Injection is perormed by ruby laser radiation effect on the surface of steady-state graphite target, mounted on the internal surface of one of screw conductors. Comparison of the experimentally observed time course of C5 line intensity to the results of mathematic simulation of carbon transfer in plasma gives the values of diffusion coefficient and convection rate D=18x10{sup 3}cm{sup 2}/s, V=4.5x10{sup 3}cm/s respectively is performed. The minimal carbon atom concentration in plasma measured (without injection) is at the level of 5x10{sup -3}n-bar{sub e}. Radiation losses conditioned by the background carbon under the conditions of the purest unit are at the level of 200 W. Radiation losses in the range of 0.1-10nm, linked with carbon, make up {approx}2% of total radiation losses of plasma. 20 refs.; 13 figs.}
place = {Ukraine}
year = {1989}
month = {Dec}
}