Dependence of spatial resolution and dose sensitivity of gas discharge converter on bremsstrahlung boundary energy range of 10-100 MeV

S. N. Averyaskin; G. Ya. Anischenko; M. Yu. Kononov; A. K. Zaitzev; Valery Konstantin Kuleshov; S. V. Samylov

doi:10.1117/12.145723

1 January 1993 Dependence of spatial resolution and dose sensitivity of gas discharge converter on bremsstrahlung boundary energy range of 10-100 MeV

S. N. Averyaskin, G. Ya. Anischenko, M. Yu. Kononov, A. K. Zaitzev, Valery Konstantin Kuleshov, S. V. Samylov

Author Affiliations +

Proceedings Volume 1801, 20th International Congress on High Speed Photography and Photonics; (1993) https://doi.org/10.1117/12.145723
Event: 20th International Congress on High Speed Photography and Photonics, 1992, Victoria, BC, Canada

Abstract

The formation of latent radiation image was investigated using the method of statistic simulation of process of gamma radiation interaction with a gas discharge converter. The process of gamma quanta interaction with an input electrode was simulated, then we observed the paths of electrons coming out into gas and radial distribution of energy losses in gas. This permitted us to determine the dependence of registration efficiency, intrinsic unsharpness, and dose sensitivity on Bremsstrahlung boundary energy 10 - 100 MeV. Experiments gave dose and frequency-contrast characteristics of the gas discharge converter which have good agreement with calculation results. Intrinsic unsharpness of the gas discharge converter in the said energy range equals 6.4 to 3.4 mm, and dose sensitivity was from 2.7 X 10^-8 up to 2.0 X 10^-8 C/Kg.

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S. N. Averyaskin, G. Ya. Anischenko, M. Yu. Kononov, A. K. Zaitzev, Valery Konstantin Kuleshov, and S. V. Samylov "Dependence of spatial resolution and dose sensitivity of gas discharge converter on bremsstrahlung boundary energy range of 10-100 MeV", Proc. SPIE 1801, 20th International Congress on High Speed Photography and Photonics, (1 January 1993); https://doi.org/10.1117/12.145723

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