Related Experiment Videos
Directional detector of gamma ray sources
S Kronenberg1, G J Bruckner, E Bechtel
1NBC Defense Systems, RADIAC Project Office, Attn: AMCPM-NNN-F, Fort Monmouth, NJ 07703-5211, USA.
Health Physics
|April 1, 1996
Summary
This study developed an ionization chamber to detect and locate gamma ray sources. The device can identify radiation hotspots, aiding in navigation and security applications.
Area of Science:
- Nuclear instrumentation
- Radiation detection and measurement
Background:
- Accurate detection and localization of gamma ray sources are critical for safety and security.
- Existing monitoring systems may have limitations in sensitivity and directional accuracy.
Purpose of the Study:
- To design, develop, and characterize a novel ionization chamber.
- To assess its capability in detecting and locating low-intensity gamma ray sources.
- To evaluate its potential applications in military and security contexts.
Main Methods:
- Development of a specialized ionization chamber.
- Characterization of its performance across various radiation energies and intensities.
- Testing its directional sensitivity under different source conditions.
Main Results:
- The ionization chamber successfully detects and locates gamma ray sources with intensities as low as 100 mu Gy h(-1).
- Effective localization was achieved for X-ray and gamma radiation sources within the 14 to 1,250 keV energy range.
- Directional sensitivity was observed to be influenced by photon energy, intensity, and source complexity.
Conclusions:
- The developed ionization chamber is a viable tool for detecting and locating gamma ray sources.
- It offers potential applications for identifying radiation hotspots for military personnel safety.
- The technology may also be valuable in security for detecting clandestine radioactive materials.