Accession Number:

ADP000237

Title:

Shock Tube Simulation of Pulsed Flow Aerodynamic Windows,

Descriptive Note:

Corporate Author:

TRW DEFENSE AND SPACE SYSTEMS GROUP REDONDO BEACH CA

Report Date:

1981-07-01

Pagination or Media Count:

8.0

Abstract:

Aerodynamic windows provide pressure and gas species isolation interfaces which are transparent to laser radiation. The feasibility of using a shock tube flow field as a single-shot window for short, high-energy laser pulses was investigated. A primary laser driven inertial confinement fusion test facility currently planned by DoE. Experiments were performed to determine the phase aberrations and beam-quality degradations produced by a pulsed-flow window. Holographic interferograms, when interpreted with a densitometer, typically showed an RMS phase aberration of 0.13, rad in tests using He and 1.25 in tests using air, all at the 0.694 micron Ruby wavelength.

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE