Related Experiment Video
Updated: Mar 9, 2026

Visualization of Low-Level Gamma Radiation Sources Using a Low-Cost, High-Sensitivity, Omnidirectional Compton Camera
Published on: January 30, 2020
Low-background gamma-ray spectrometry for the international monitoring system
L R Greenwood1, M G Cantaloub1, J L Burnett1
1Pacific Northwest National Laboratory, Richland, WA 99352, United States.
Abstract:
PNNL has developed two low-background gamma-ray spectrometers in a new shallow underground laboratory, thereby significantly improving its ability to detect low levels of gamma-ray emitting fission or activation products in airborne particulate in samples from the IMS (International Monitoring System). The combination of cosmic veto panels, dry nitrogen gas to reduce radon and low background shielding results in a reduction of the background count rate by about a factor of 100 compared to detectors operating above ground at our laboratory.
Related Concept Videos
Atomic Emission Spectroscopy: Instrumentation
Atomic Emission Spectroscopy: Lab
Atomic Absorption Spectroscopy: Instrumentation
The atomizer used in AAS can be either a flame atomizer or an...
Atomic Emission Spectroscopy: Overview
Gas Chromatography: Types of Detectors-II
Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview

