Theoretical and Mathematical Physics

An investigation of reading thermal images processes by a thermal image receiver made 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, Russia

Abstract: The results of calculations of electric fields, potentials, and trajectories of photoelectrons calculations of single-channel dual-spectral thermal imager, implemented in the IIT architecture are presented. The values of the optimal potentials on the control electrodes (microchannel plate, reading electrode, and photocathode) that form a picture of the images of objects and ensure the correct reading of the potential relief from the surface of the sensor-converter pyroelectric film of the image thermal receiver under discussion are determined.

Keywords: image intensifier tube, spontaneous polarization, a pyroelectric sensor, photocathode, photoelectronic emission, thermal object image receiver, secondary electron emission.

Received: 30.12.2021
Revised: 26.02.2022
Accepted: 26.02.2022

DOI: 10.21883/JTF.2022.05.52368.338-21

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