Laser Damage to Rv Antenna Components

Period of Performance: 12/01/1986 - 03/01/1989

$486K

Phase 2 SBIR

Recipient Firm

Physical Sciences, Inc.
ANDOVER, MA 01810
Principal Investigator

Abstract

A PROGRAM IS PROPOSED TO OBTAIN A RELEVANT DATA BASE, MODELING CAPABILITY AND SYSTEMS IMPLICATIONS. THE TECHNICAL OBJECTIVES OF THE PROGRAM WILL BE TO: 1. DEFINE RELEVANT EFFECTS AND MAKE PRETEST PREDICTIONS TO ANTENNA WINDOW MATERIALS AND SUBSYSTEM COMPONENTS THAT ARE OF MAJOR CONCERN TO THE ANTENNA DESIGN ENGINEER. 2. DESIGN AND PERFORM EXPERIMENTS TO DEMONSTRATE THE ISSUES AND QUANTITATIVELY MEASURE PERTINENT PARAMETERS SUCH AS INDEPTH TEMPERATURE, SURFACE CONTOUR CHANGE, DEDENSIFICATION LENGTH SCALE, ANTENNA MASS LOSS/ DEFORMATION. EXPERIMENTS WILL BE PERFORMED WITH DF (WAVELENGTH = 3.8 MICROMETERS), Nd YAG (WAVELENGTH = 1.06 MICROMETERS), AND XeF (WAVELENGTH = 0.35 MICROMETERS) LASERS. 3. ANALYZE EXPERIMENTAL DATA AND COMPARE WITH PRETEST PREDICTIONS. 4. PERFORM A LIMITED SYSTEMS ANALYSIS USING INFORMATION OBTAINED THROUGH EXPERIMENTS AND MODELING TO ASSESS IMPLICATIONS TO THE PERFORMANCE OF THE RV.