Detection of Base Separation in 175mm Artillery Shell by Gamma-Ray Transmission
Abstract
The feasibility of gamma-ray transmission to inspect for base separation between the steel shell and the high explosive casting in 175 mm projectiles was explored. The method consists of passing the section of the projectile containing the metal base-explosive interface across a highly collimated beam of cobalt-60 gamma rays and measuring changes in transmission with a scintillation detector. It is demonstrated both theoretically and experimentally that a 30-mil (0.030 in.) gap can be detected using rigidly controlled laboratory conditions with a mock projectile and an artifically induced separation. This technique was also tested with 100 fully loaded projectiles.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1975
- Accession Number
- ADA016110
Entities
People
- A. Jentsch
- J. Mccahill
- S. Helf
- S. Watters
Organizations
- Picatinny Arsenal