Aluminum micropellets for hot plasma diagnostics

A novel technique for the injection of small (diameter ≤30 μm) impurity pellets into fusion plasmas is proposed and investigated. The method may be easily applied by using a special target plate in conventional laser blow‐off injection devices. In the present experiments 10×30×30 μm size aluminum pe...

Full description

Saved in:
Bibliographic Details
Published in:Review of scientific instruments 1995-04, Vol.66 (4), p.2904-2907
Main Authors: Zoletnik, S., Kocsis, G., Bürger, G., Ignácz, P. N., Kardon, B., Ḱlvin, S., Bakos, J. S.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A novel technique for the injection of small (diameter ≤30 μm) impurity pellets into fusion plasmas is proposed and investigated. The method may be easily applied by using a special target plate in conventional laser blow‐off injection devices. In the present experiments 10×30×30 μm size aluminum pellets (≊5×1014 atoms) are accelerated to average velocities up to 1 km/s by a 700 mJ ruby laser pulse. The scaling law obtained from a rocket model to the pellet velocity versus laser fluence fits well to experimental data and enables one to extrapolate the capabilities of the technique.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1145575