This article is cited in 2 papers

Theoretical and Mathematical Physics

The thermal image receiver realized in the Image intensifier tube architecture

A. S. Grevcev, P. A. Zolotukhin, E. A. Il'ichev, G. N. Petrukhin, A. V. Popov, G. S. Rychkov

National Research University of Electronic Technology, Zelenograd, Moscow, Russia

Abstract: An innovative design of thermal imaging is considered. The results of analysis and calculations of the characteristics of a thermal image receiver (3–15 $\mu$m), made in the electron-optical converter architecture, are presented. The spatial dependences of the spontaneous polarization the electric field strengths and the electric potentials on the surface of pyroelectric film are calculated. The characteristics of thermal-field-induced polarization of various pyroelectric films are obtained. The temperature dependences of various pyroelectric films polarizations are calculated by the COMSOL Multiphysics software package based on the finite element method. The possible influences of the piezoelectric effect to the images of the distribution of electric potentials of pyroelectric films are taken into account. The estimates of the values of the main characteristics of the image intensifier tube architecture are obtained.

Keywords: the image intensifier tube, spontaneous polarization, pyroelectric, bolometric thermal imagers, pyroelectric thermal imagers.

Received: 22.10.2021
Revised: 05.11.2021
Accepted: 10.01.2022

DOI: 10.21883/JTF.2022.04.52237.270-21

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