Related Experiment Video
Updated: Dec 26, 2025

Visualization of Low-Level Gamma Radiation Sources Using a Low-Cost, High-Sensitivity, Omnidirectional Compton Camera
Published on: January 30, 2020
Spectral unmixing applied to fast identification of γ-emitting radionuclides using NaI(Tl) detectors
Abstract:
Spectral unmixing was investigated for fast spectroscopic identification in γ-emitter mixtures at low-statistics in the case of measurements performed to prevent illegal nuclear material trafficking or for in situ environmental analysis following a radiological or nuclear accident. For that purpose, a multiplicative update algorithm based on full-spectrum analysis was tested in the case of a 3″x3″ NaI(Tl) detector. Automatic decision-making was addressed using Monte Carlo calculations of decision thresholds and detection limits. The first results obtained with a portable instrument equipped with a 3″x3″ NaI(Tl) detector designed for the control of food samples by non-expert users following a radiological or nuclear accident, are also presented.
More Related Videos
Related Concept Videos
Atomic Emission Spectroscopy: Lab
Atomic Emission Spectroscopy: Instrumentation
Atomic Emission Spectroscopy: Overview
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
Imaging Studies II: Positron Emission Tomography and Scintigraphy
Fundamental Principles of PET
Tandem Mass Spectrometry

