Accession Number:

ADA443148

Title:

Laser-Driven Mini-Thrusters

Descriptive Note:

Conference paper

Corporate Author:

ALABAMA UNIV IN HUNTSVILLE DEPT OF PHYSICS

Report Date:

2005-12-08

Pagination or Media Count:

13.0

Abstract:

Laser-driven mini-thrusters were studied using Delrin and PVC Delrin is a registered trademark of DuPont as propellants. TEA CO2 laser lambda 10.6 microns was used as a driving laser. Coupling coefficients were deduced from two independent techniques force-time curves measured with a piezoelectric sensor and ballistic pendulum. Time-resolved ICCD images of the expanding plasma and combustion products were analyzed in order to determine the main process that generates the thrust. The measurements were also performed in a nitrogen atmosphere in order to test the combustion effects on thrust. A pinhole transmission experiment was performed for the study of the cut-off time when the ablationair breakdown plasma becomes opaque to the incoming laser pulse.

Subject Categories:

  • Lasers and Masers
  • Rocket Propellants

Distribution Statement:

APPROVED FOR PUBLIC RELEASE