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A Gamma Scanner with an Anticollimator for Visualization of γ-Radiation Sources

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Abstract

A method for visualizing γ-radiation sources is described based on scanning an object of study (emergency radioactively contaminated premises or objects using atomic energy) using a gamma scanner with an anticollimator. Gamma scanner with anticollimator is designed to search for sources of γ-radiation in an inspected object in automatic mode. In contrast to the traditional scheme of a scanner with a shield and a detector collimator, the use of an anticollimator makes it possible to create a device with a mass of less than 5 kg. When using the procedure for reconstructing images of radiation sources using the maximum-likelihood method, a high angular resolution of approximately 5° is provided. A prototype of such a system and the principle of its operation are described and examples of the method for processing the measurement results are given.

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ACKNOWLEDGMENTS

The authors are very grateful to A.M. Safronov for help in carrying out the model experiment.

Funding

This work was supported by the National Research Center Kurchatov Institute (order no. 1808 of August 14, 2019).

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Authors and Affiliations

  1. Kurchatov Institute National Research Center, 123182, Moscow, Russia

    O. P. Ivanov, S. M. Ignatov, V. N. Potapov, M. A. Samoilova & I. A. Semin

Authors
  1. O. P. Ivanov
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  2. S. M. Ignatov
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  3. V. N. Potapov
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  4. M. A. Samoilova
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  5. I. A. Semin
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Corresponding authors

Correspondence to V. N. Potapov or M. A. Samoilova.

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Ivanov, O.P., Ignatov, S.M., Potapov, V.N. et al. A Gamma Scanner with an Anticollimator for Visualization of γ-Radiation Sources. Instrum Exp Tech 64, 285–290 (2021). https://doi.org/10.1134/S0020441221020056

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  • DOI: https://doi.org/10.1134/S0020441221020056

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