Medical Radiology and Radiation Safety. 2026. Vol. 71. № 3

DOI:10.33266/1024-6177-2026-71-3-34-41

M.I. Grachev, S.V. Taldytov, I.N. Sheyno, L.E. Karl, A.G. Tsovyanov, V.P. Kryuchkov

Certain Approaches to Validation of the Dominant Network of Monitoring Points for Radiation Situation in Case of an Emergency

A.I. Burnazyan Federal Medical Biophysical Center, Moscow, Russia

Contact person: M.I. Grachev, e-mail: Этот адрес электронной почты защищен от спам-ботов. У вас должен быть включен JavaScript для просмотра. , V.P. Kryuchkov, e-mail: Этот адрес электронной почты защищен от спам-ботов. У вас должен быть включен JavaScript для просмотра.

ABSTRACT 

Purpose: To substantiate the network configuration for the placement of measurement points for ambient dose equivalent rate of γ-radiation (ADER) from fallout resulting from an accidental release, taking into account the settlement’s metric – that is, to determine the minimum number of detectors required while ensuring maximum territorial coverage by detection zones. This approach will reduce both the operational time and, consequently, the radiation doses received by personnel conducting radiological monitoring.

Material and methods: To address the problem of substantiating the ADER measurement network, the principle of maximal spatial coverage was employed, implemented through the calculation of a visibility matrix (VM) for all possible pairs of observation points.

Results: Several computational algorithms were used in this study. The most resource-intensive is the calculation of the VM of a set of vertices, due to the need to render images in the Cycles Blender 3D graphics program. The proposed computational algorithm allows for the calculation of the location and minimum number of the ADER measurement points, taking into account the locality metrics, without preliminary emission assessment and meteorological forecasting.

Conclusion: The proposed approach can be used to justify a program for conducting radiation monitoring in the event of a radiation accident.

Keywords:  radiation accident, radioactive fallout, DER measurement points, visibility matrix, Cycles Blender 3D graphics program

For citation: Grachev MI, Taldytov SV, Sheyno IN, Karl LE, Tsovyanov AG, Kryuchkov VP. Certain Approaches to Validation of the Dominant Network of Monitoring Points for Radiation Situation in Case of an Emergency. Medical Radiology and Radiation Safety. 2026;71(3):34–41. DOI:10.33266/1024-6177-2026-71-3-34-41

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 PDF (RUS) Full-text article (in Russian)

Conflict of interest. The authors declare no conflict of interest.

Financing. The study had no sponsorship.

Contribution. Article was prepared with equal participation of the authors.

Article received: 20.02.2026. Accepted for publication: 25.03.2026.