Accession Number:

ADA446155

Title:

Investigation of Transient Forces Produced by Gases Expelled from Rapidly Heated Surfaces

Descriptive Note:

Corporate Author:

UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES DEPT OF AEROSPACE AND MECHANICAL ENGINEERING

Report Date:

2005-07-13

Pagination or Media Count:

7.0

Abstract:

A torsional impulse balance has been developed as a new diagnostic tool to study fundamental processes in laser-surface interactions. The impulse balance has been designed and tested with a robust calibration system to measure impulsive forces with resolution as low as 1 nano-Newton-second. A simple technique has been developed to accurately determine the force as a function of time from the motion of the nano-impulse balance system NIBS. This technique will be useful in examining the transient responses of photon-surface interactions. Initial ablation measurements using anodized aluminum plates at vacuum and with various background gases are presented.

Subject Categories:

  • Medical Facilities, Equipment and Supplies
  • Inorganic Chemistry
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE