journal article·2019-10

A New Method and Apparatus for High-Resolution γ-Radiographic Introscopy of Bulk Heavy-Metal Products and Blanks. First Application Results

M. A. Gorbunov, S. V. Dudin, O. V. Ignatyev, E. A. Kupchinskaya, A. V. Kupchinsky, S. G. Morozov, A. A. Pulin

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Abstract

A $$\gamma $$ -introscopy method and an installation using “electronic focusing” of $$\gamma $$ -quanta transmitted through the studied object are proposed. The apparatus contains a powerful 60Co-source; a device for positioning the studied object; and a measuring facility, including a thin scintillation coordinate detector-scatterer with 64 silicon photomultipliers (SiPMs) and digital detector pulse processors (PDPs), a total absorption scintillation detector with analog-digital PDP, a unit for coincidence and energy event selection and on-line coordinate calculation, and a communication interface to a PC. The spatial resolution achieved for thick objects is $$ \approx $$ 400 μm. The theoretical limit is $$ \approx {\kern 1pt} 50$$ μm.
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Research context

OpenAlex topics: Radiation Detection and Scintillator Technologies · Nuclear Physics and Applications · Medical Imaging Techniques and Applications

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References (7)

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