High Resolution Detector for X-Ray Visualization

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Abstract

A compact two-dimensional high-resolution detector for X-ray imaging has been developed. The main elements of the detector are a 20-μm-thick LuAG:Ce scintillation crystal and a monochrome CMOS sensor with a resolution of 20 MP and a shooting rate of up to 20 frame/s. The detector efficiency has been estimated on an Excillium MetalJet D2 laboratory source with a GaIn liquid anode. The objects of study were a copper mesh with a 25.4 µm period and a test structure made of tantalum, 500 nm thick, with a radially decreasing pattern (Siemens star). Additionally, radiography of a biological object (centipede) was carried out. The spatial resolution of the detector was less than 3 μm.

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About the authors

A. L. Astafyev

Immanuel Kant Baltic Federal University

Author for correspondence.
Email: alastafev@kantiana.ru
Russian Federation, Kaliningrad

D. A. Zverev

Immanuel Kant Baltic Federal University

Email: alastafev@kantiana.ru
Russian Federation, Kaliningrad

M. A. Voevodina

Immanuel Kant Baltic Federal University

Email: alastafev@kantiana.ru
Russian Federation, Kaliningrad

A. A. Barannikov

Immanuel Kant Baltic Federal University

Email: alastafev@kantiana.ru
Russian Federation, Kaliningrad

I. B. Panormov

Immanuel Kant Baltic Federal University

Email: alastafev@kantiana.ru
Russian Federation, Kaliningrad

A. A. Snigirev

Immanuel Kant Baltic Federal University

Email: alastafev@kantiana.ru
Russian Federation, Kaliningrad

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Supplementary files

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2. Fig. 1. Radiographic image (a) and cross-section (b) of a metal mesh with a period of 25.4 μm, mesh thickness of 8 μm, and exposure time of 2000 s.

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3. Fig. 2. Radiographic image of the Siemens star test object.

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4. Fig. 3. Radiographic image of millipede (a) and enlarged image of the head (b), exposure time 2000 s.

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