Gas-discharge converter with improved spatial resolution for operation with a bremsstrahlung beam of 70-MeV boundary energy

S. N. Averyaskin; Yadik Z. Kandiev; V. K. Kuleshov; N. M. Mamontov; S. I. Samarin

doi:10.1117/12.209663

30 May 1995 Gas-discharge converter with improved spatial resolution for operation with a bremsstrahlung beam of 70-MeV boundary energy

S. N. Averyaskin, Yadik Z. Kandiev, V. K. Kuleshov, N. M. Mamontov, S. I. Samarin

Author Affiliations +

Proceedings Volume 2513, 21st International Congress on: High-Speed Photography and Photonics; (1995) https://doi.org/10.1117/12.209663
Event: High-Speed Photography and Photonics: 21st International Congress, 1994, Taejon, Korea, Republic of

Abstract

The passade of the bremsstrahlung spectrum with boundary energy equal to 70 MeV through the lead and iron absorbers whose thickness corresponds to the widely spread investigated objects is calculated. Further, by applying the statistical modelling method the calculation of the interaction between the obtained spectra of the gamma radiation and the converting plate of the gas discharge converter (GDC) is performed. The trajectories of electrons entering into gas volume are followed and the radial distribution of the energy losses in gas is calculated. It is shown that unsharpness being found in the gas layer depends on the distance from the converter electrode. The calculation of the gas amplification processes is carried out, and on the basis of this calculation it is shown that by choosing the high-voltage pulse form, duration and amplitude of the GDC power supply it is possible to achieve the essential improvement of the GDC spatial resolution.

Citation Download Citation

S. N. Averyaskin, Yadik Z. Kandiev, V. K. Kuleshov, N. M. Mamontov, and S. I. Samarin "Gas-discharge converter with improved spatial resolution for operation with a bremsstrahlung beam of 70-MeV boundary energy", Proc. SPIE 2513, 21st International Congress on: High-Speed Photography and Photonics, (30 May 1995); https://doi.org/10.1117/12.209663

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