Cars Temperature Measurements in the Muzzle Flash Region of a 7.62 mm Rifle
Abstract
Temperature in the muzzle flash region of a 7.62 mm rifle (M-14) have been obtained by a nonlinear least squares analysis of coherent anti-Stokes Raman scattering (CARS) spectra of the carbon monoxide molecule. The experimental procedure involved firing a modified M-14 rifle into a large metal box where argon, nitrogen and air were used as fill gases. The resulting muzzle flash radiation has been sampled by emission spectroscopy to give temperature estimates using blackbody radiation laws. The muzzle flow field has been probed by a He-Ne laser beam to investigate light transmission properties as a function of time. Temporally and spatially resolved temperatures in the flow field have been determined by probing with high intensity pulsed lasers which generating beams are enclosed in small tubes, the CARS derived temperatures in the intermediate flash region range from 1468 K at 0.70 ms down to about 500 K at 1. 53 ms. These spatially resolved results compare favorably with the most recent other muzzle flash temperature studies.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1987
- Accession Number
- ADA190786
Entities
People
- Anthony J. Kotlar
- John A. Vanderhoff
- Richard B. Peterson
Organizations
- Ballistic Research Laboratory