Accession Number:

ADA609428

Title:

Hypervelocity Dust Storm Launched with a Coaxial Plasma Gun

Descriptive Note:

Conference paper

Corporate Author:

LOS ALAMOS NATIONAL LAB NM

Personal Author(s):

Report Date:

2007-06-01

Pagination or Media Count:

5.0

Abstract:

A dust storm consisting of carbon grains accelerated to speeds up to 3 kms has been launched by a plasma jet produced in a coaxial gun. Diamond and graphite powders with grain radii of 0.5 to 30 microns have been used. A distinctive feature of this plasma accelerator is that it can use different types of gases and can operate with microparticles having any shape and a large range of sizes. Deuterium gas and carbon dust is chosen to be compatible with fusion plasmas as a diagnostic tool. The operating voltages of the coaxial gun are between 5 and 10 kV and the maximum measured discharge current is 250 kA. Imaging of the plasma jet exiting the gun with speeds of 25 to 60 kms and accelerated by the J B force shows a good collimation of the flow for about 1.5 m, before it diffuses into a large a vacuum tank.

Subject Categories:

  • Guns

Distribution Statement:

APPROVED FOR PUBLIC RELEASE