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Magnetic Viewer for Obtaining Images of Charged-Particles Emitting Surfaces

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Abstract

The possibility of obtaining a reduced image of a large surface emitting charged particles in a nonuniform magnetic field is investigated. The basic conditions for identical transmission of an image are determined: the magnetic flux must be conserved and the motion of the charged particles must be adiabatic and noncollisional. The dependence of the image reduction ratio on the ratio of the magnetic fields at the surface and the screen is determined. Experiments are performed in a vacuum chamber, which contains the source of electronic emission and the recording screen at a fixed distance. Image formation, transport, and recording are conducted in a wide range of image reduction ratios (1–1/40). The investigations are performed for three objects with different size of the emitting surfaces and energy range of β particles with two magnetic systems. It is established that the resolution of the object investigated is 2–3 mm with image reduction ratio 1/36.

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  1. State Science Center of the Russian Federation – TRINITI, Russia

    A. I. Markin, N. I. Syromyatnikov & V. E. Cherkovets

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  1. A. I. Markin
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  2. N. I. Syromyatnikov
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  3. V. E. Cherkovets
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Markin, A.I., Syromyatnikov, N.I. & Cherkovets, V.E. Magnetic Viewer for Obtaining Images of Charged-Particles Emitting Surfaces. Atomic Energy 96, 260–266 (2004). https://doi.org/10.1023/B:ATEN.0000035996.31897.b3

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  • DOI: https://doi.org/10.1023/B:ATEN.0000035996.31897.b3

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