X-ray imaging with compound refractive lens and microfocus x-ray tube

Pı́na, L.; Dudchik, Yu. I.; Jelinek, V; Sveda, L.; Marsik, Jiri; Horvath, Martin P.; Petr, Ondrej

doi:10.1117/12.798306

SPIE Proceedings

2008

DOI: 10.1117/12.798306

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X-ray imaging with compound refractive lens and microfocus x-ray tube

L. Pı́na

Yu. I. Dudchik

V Jelinek

et al.

Abstract: Compound refractive lenses (CRL), consisting of a lot number in-line concave microlenses made of low-Z material were studied. Lenses with focal length 109 mm and 41 mm for 8-keV X-rays, microfocus X-ray tube and X-ray CCD camera were used in experiments. Obtained images show intensity distribution of magnified microfocus X-ray source focal spot. Within the experiments, one lens was also used as an objective lens of the X-ray microscope, where the copper anode X-ray microfocus tube served as a source. Magnified… Show more

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Cited by 5 publications

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Imaging of Biological Materials and Cells by X-ray Scattering and Diffraction

Hémonnot

Köster

2017

ACS Nano

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Cells and biological materials are large objects in comparison to the size of internal components such as organelles and proteins. An understanding of the functions of these nanoscale elements is key to elucidating cellular function. In this review, we describe the advances in X-ray scattering and diffraction techniques for imaging biological systems at the nanoscale. We present a number of principal technological advances in X-ray optics and development of sample environments. We identify radiation damage as one of the most severe challenges in the field, thus rendering the dose an important parameter when putting different X-ray methods in perspective. Furthermore, we describe different successful approaches, including scanning and full-field techniques, along with prominent examples. Finally, we present a few recent studies that combined several techniques in one experiment in order to collect highly complementary data for a multidimensional sample characterization.

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Imaging of Biological Materials and Cells by X-ray Scattering and Diffraction

Hémonnot

Köster

2017

ACS Nano

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Hybrid setup for micro- and nano-computed tomography in the hard X-ray range

Fella

Balles

Hanke

et al. 2017

Review of Scientific Instruments

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With increasing miniaturization in industry and medical technology, non-destructive testing techniques are an area of ever-increasing importance. In this framework, X-ray microscopy offers an efficient tool for the analysis, understanding, and quality assurance of microscopic samples, in particular as it allows reconstructing three-dimensional data sets of the whole sample's volume via computed tomography (CT). The following article describes a compact X-ray microscope in the hard X-ray regime around 9 keV, based on a highly brilliant liquid-metal-jet source. In comparison to commercially available instruments, it is a hybrid that works in two different modes. The first one is a micro-CT mode without optics, which uses a high-resolution detector to allow scans of samples in the millimeter range with a resolution of 1 μm. The second mode is a microscope, which contains an X-ray optical element to magnify the sample and allows resolving 150 nm features. Changing between the modes is possible without moving the sample. Thus, the instrument represents an important step towards establishing high-resolution laboratory-based multi-mode X-ray microscopy as a standard investigation method.

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Imaging suprathermal x-rays from a laboratory plasma jet using PIN-diode-based and scintillator-based 1D pinhole/coded aperture cameras

Pree

Bellan

2023

Review of Scientific Instruments

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A PIN-diode-based 1D x-ray camera and a scintillator-based 1D x-ray camera, both with a microsecond to submicrosecond time resolution, have been developed to perform time-resolved imaging of transient, low-intensity, suprathermal x-rays associated with magnetohydrodynamic instabilities disrupting a plasma jet. These cameras have a high detection efficiency over a broad x-ray band, a wide field of view, and the capability to produce [Formula: see text] time-resolved frames with a [Formula: see text] μs time resolution. The x-ray images are formed by a pinhole or by a coded aperture placed outside a vacuum chamber in which the plasma jet is launched. The 1D imaging shows that the location of the x-ray source is either a few centimeters away from an inner disk electrode or near a spatially translatable metal frame that is 30–40 cm away from the electrode. Compared to a pinhole, a coded aperture increases the signal collection efficiency but also introduces unwanted artifacts.

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X-ray imaging with compound refractive lens and microfocus x-ray tube

Cited by 5 publications

References 13 publications

Imaging of Biological Materials and Cells by X-ray Scattering and Diffraction

Imaging of Biological Materials and Cells by X-ray Scattering and Diffraction

Hybrid setup for micro- and nano-computed tomography in the hard X-ray range

Imaging suprathermal x-rays from a laboratory plasma jet using PIN-diode-based and scintillator-based 1D pinhole/coded aperture cameras

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