https://doi.org/10.1051/epjconf/202328810023
Methodical Optimization of Mutual-Shielding Directional Gamma Detector
1 Electronics & Control Laboratories, Nuclear Research Center Negev, Israel
2 Ben Gurion University of the Negev
3 Israel Atomic Energy Commission (IAEC)
4 Technion Israel Institute of Technology
5 Radiation Detection Department, Rotem Industries Ltd, Israel
Published online: 21 November 2023
Mutual-Shielding Directional Gamma Detector excels at sensitivity and can achieve good angular accuracy and a large field of view. In this paper, we present, in detail, a method to optimize a mutual shielding directional detector array regarding the scintillators positioning for a given number and size of detection units. The optimization goals are improvement of accuracy and sensitivity.
The optimization uses two types of fast, non-Monte-Carlo simulations since the simulation needs to generate measurements from all directions for each array formation tested. Both these simulations are explained and demonstrated.
The presented method uses the ambiguity function to assess the accuracy and identify directions that may generate errors due to similar responses from other directions. Then, addressing these problematic directions can be fixed by changing the scintillators’ positions or adding a partial shield to change the response at one of the similar directions.
Key words: Directional Gamma Detector / Detectors Array / Mutual Shielding
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
