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Updated: Jun 23, 2026

Visualization of Low-Level Gamma Radiation Sources Using a Low-Cost, High-Sensitivity, Omnidirectional Compton Camera
Published on: January 30, 2020
Prompt gamma neutron activation analysis of 10B and Gd in biological samples at the MEPhI reactor
V F Khokhlov1, K N Zaitsev, V N Beliayev
1Burnasyan Federal Medical Biophysical Center of the Federal Medical Agency, ul. Zivopisnaya 46, Moscow, Russia.
Abstract:
The purpose of the work was to build a prompt gamma neutron activation analysis (PGNAA) facility at the MEPhI reactor for analyzing the content of various elements for NCT. The facility was implemented on a monochromatic neutron beam. Methods of quantitative (10)B and Gd measurement have been developed for pharmacokinetic studies. The facility is capable of measuring 1 microg of (10)B and 10 microg of Gd in biological samples with an error less than 10%. The detection limit of the facility is 0.3 microg of (10)B and 2 microg of Gd. Neutron flux attenuation within biological tissue samples was estimated and a new system for determining the elemental concentration was suggested.
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