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Updated: Sep 29, 2026

Visualization of Low-Level Gamma Radiation Sources Using a Low-Cost, High-Sensitivity, Omnidirectional Compton Camera
Published on: January 30, 2020
Development of a gamma-gamma-perturbed angular correlation one-detector method (1-PAC) for investigation of
D V Filossofov1, A F Novgorodov, N A Korolev
1Joint Institute for Nuclear Research, DLNP, 141980 Dubna, Russia.
Abstract:
A new method of the perturbed angular gamma-gamma-correlation (PAC) measurements was developed using one HPGe detector only (1-PAC). For quantifying the perturbation factor, the ratio R gamma 1 + gamma 2 of the summing peak composed of two cascade gamma-rays (the perturbation-affected parameter) to the summing peak composed of one gamma-ray and one X-ray (the perturbation non-affected parameter) was used. This method was demonstrated for the radionuclides 111In and 111mCd, identifying the chemical status of the radionuclides in aqueous solutions.
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