Investigation of laser blow-off atomic beams by electron impact excitation

J. Bakos, I. B. Földes, P. N. Ignácz, G. Kocsis

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Electron impact excitation in the edge region of the MT-1 tokamak was used to measure the velocity distribution of a sodium laser blow-off beam in a single shot. The different dependencies of the propagation velocity of the blow-off neutral beam on the laser fluence at different sodium layer thicknesses reveal different regimes of the blow-off process. In the case of thick targets laser ablation is the main accelerating mechanism giving a v∼I1/3 dependence. Thin targets, however, burn through during the laser pulse, and simple thermal heating process results in v∼I1/2 in good agreement with the experiments.

Original languageEnglish
Pages (from-to)1231-1236
Number of pages6
JournalJournal of Applied Physics
Volume69
Issue number3
DOIs
Publication statusPublished - 1991

Fingerprint

atomic beams
electron impact
sodium
excitation
lasers
propagation velocity
neutral beams
laser ablation
shot
fluence
velocity distribution
heating
pulses

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Investigation of laser blow-off atomic beams by electron impact excitation. / Bakos, J.; Földes, I. B.; Ignácz, P. N.; Kocsis, G.

In: Journal of Applied Physics, Vol. 69, No. 3, 1991, p. 1231-1236.

Research output: Contribution to journalArticle

Bakos, J. ; Földes, I. B. ; Ignácz, P. N. ; Kocsis, G. / Investigation of laser blow-off atomic beams by electron impact excitation. In: Journal of Applied Physics. 1991 ; Vol. 69, No. 3. pp. 1231-1236.
@article{eed80d5453304dfa934070f357e40015,
title = "Investigation of laser blow-off atomic beams by electron impact excitation",
abstract = "Electron impact excitation in the edge region of the MT-1 tokamak was used to measure the velocity distribution of a sodium laser blow-off beam in a single shot. The different dependencies of the propagation velocity of the blow-off neutral beam on the laser fluence at different sodium layer thicknesses reveal different regimes of the blow-off process. In the case of thick targets laser ablation is the main accelerating mechanism giving a v∼I1/3 dependence. Thin targets, however, burn through during the laser pulse, and simple thermal heating process results in v∼I1/2 in good agreement with the experiments.",
author = "J. Bakos and F{\"o}ldes, {I. B.} and Ign{\'a}cz, {P. N.} and G. Kocsis",
year = "1991",
doi = "10.1063/1.347308",
language = "English",
volume = "69",
pages = "1231--1236",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "3",

}

TY - JOUR

T1 - Investigation of laser blow-off atomic beams by electron impact excitation

AU - Bakos, J.

AU - Földes, I. B.

AU - Ignácz, P. N.

AU - Kocsis, G.

PY - 1991

Y1 - 1991

N2 - Electron impact excitation in the edge region of the MT-1 tokamak was used to measure the velocity distribution of a sodium laser blow-off beam in a single shot. The different dependencies of the propagation velocity of the blow-off neutral beam on the laser fluence at different sodium layer thicknesses reveal different regimes of the blow-off process. In the case of thick targets laser ablation is the main accelerating mechanism giving a v∼I1/3 dependence. Thin targets, however, burn through during the laser pulse, and simple thermal heating process results in v∼I1/2 in good agreement with the experiments.

AB - Electron impact excitation in the edge region of the MT-1 tokamak was used to measure the velocity distribution of a sodium laser blow-off beam in a single shot. The different dependencies of the propagation velocity of the blow-off neutral beam on the laser fluence at different sodium layer thicknesses reveal different regimes of the blow-off process. In the case of thick targets laser ablation is the main accelerating mechanism giving a v∼I1/3 dependence. Thin targets, however, burn through during the laser pulse, and simple thermal heating process results in v∼I1/2 in good agreement with the experiments.

UR - http://www.scopus.com/inward/record.url?scp=36448999276&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=36448999276&partnerID=8YFLogxK

U2 - 10.1063/1.347308

DO - 10.1063/1.347308

M3 - Article

AN - SCOPUS:36448999276

VL - 69

SP - 1231

EP - 1236

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 3

ER -