Application of IR photorecorders based on ionization chambers for fast processes investigation

Vladimir V. Egorov; Valeri P. Lazarchuk; Vasili M. Murugov; Yuri N. Sheremetev

doi:10.1117/12.24060

1 April 1991 Application of IR photorecorders based on ionization chambers for fast processes investigation

Vladimir V. Egorov, Valeri P. Lazarchuk, Vasili M. Murugov, Yuri N. Sheremetev

Proceedings Volume 1358, 19th Intl Congress on High-Speed Photography and Photonics; (1991) https://doi.org/10.1117/12.24060
Event: 19th International Congress on High-Speed Photography and Photonics, 1990, Cambridge, United Kingdom

Abstract

There are qiven the research data of photoqraphic systems characteristics based on the ionization-type semiconductive chambers with photodetectors of different types. The recorder dynamic range of iO , speed of response of lO sec.. resolution of 10 lines/rrui and sensitivity of 10 44i0 'J/cia2 in 1-10,6 microns spectral ranqe were obtained by optimizinq the photodetector parameters. the chamber desiqn and its operatinq mode. Enerqy distribution in beams of pulsed NF and DF chemical lasers in the mode of "maqnifyinq glass of time" was studied usinq semiconductive chambers. It is shown, that the energy distribution on the lasers end has larger irregularity ('s, 102 times) than at the inteqrated survey. The information has been received about space - time responses of CO2 lasers radiation with the aid of semiconductive chambers, operatinq in a modulation mode of emission at the chamber input . and on the chamber electrodes there is applied pulsed supply voltaqe with a photoqraphy freuenc of 20-100 Hz. There are qiven the results of recordinq with semiconductive chambers of the heat fields structures of different oblects over a temperature range 600-2000"C. which are heated by a shock wave or fl at the supersonic velocity at the frame exposure time lO÷iOsec.

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Vladimir V. Egorov, Valeri P. Lazarchuk, Vasili M. Murugov, and Yuri N. Sheremetev "Application of IR photorecorders based on ionization chambers for fast processes investigation", Proc. SPIE 1358, 19th Intl Congress on High-Speed Photography and Photonics, (1 April 1991); https://doi.org/10.1117/12.24060

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KEYWORDS

Semiconductors

Photodetectors

Photography

Electrodes

Ionization

High speed photography

Carbon dioxide lasers

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