Methods to Perform Behind-Armour Debris Analysis with X-ray Films

PDF

Authors
  1. Baillargeon, Y.
  2. Lalanne, C.
Corporate Authors
Defence R&D Canada - Valcartier, Valcartier QUE (CAN);Laval Univ, Quebec QUE (CAN)
Abstract
The Behind-Armour (BA) debris cloud created behind the target after a projectile impact can easily be observed using x-ray technology. Some countries use this technology to evaluate the lethality of the threat since the number of fragments, mass and velocity can be estimated. Usually, two orthogonal x-ray stations are located behind the target in order to obtain orthogonal images at two different times. Since only projected images of BA debris are recorded on films (two dimensions), a major issue to solve concerns the available information. An analysis of these x-ray films becomes time-consuming when the fragments must be matched from one station to another or from corresponding horizontal and vertical views. Also, the distances seen on the films are projected distances that are different from the real distance travelled by fragments. This memorandum presents equations, methods and tools that can be used to rapidly locate fragments in space (three dimensions) in order to accurately compute their velocity, trajectory and finally assess their mass based on x-ray films only.

Il y a un résumé en français ici.

Keywords
BAD (Behind Armor Debris);Witness pack;Witness plate;Fragment mass;Fragment velocity;X-ray film;Fragment trajectory;Orthogonal view;Orthogonal image;Orthogonal film
Report Number
DRDC-VALCARTIER-TM-2003-123 — Technical Memorandum
Date of publication
01 Aug 2005
Number of Pages
46
DSTKIM No
CA026274
CANDIS No
524096
Format(s):
CD ROM

Permanent link

Document 1 of 1

Date modified: