Liquid-metal-jet x-ray tube technology and tomography applications

Espes, Emil; Andersson, Tommy; Björnsson, Fredrik; Gratorp, Christina; Hansson, Björn; Hemberg, Oscar; Johansson, Göran A.; Kronstedt, Johan; Otendal, Mikael; Tuohimaa, Tomi; Takman, Per

doi:10.1117/12.2061612

Cited by 15 publications

(10 citation statements)

References 3 publications

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“…X-ray sources with high spatial coherence and photon flux required for PCI 8 are a difficult technological realization. On one hand, conventional microfocus [9][10][11] and liquid-metal-jet 12 x-ray tubes are very compact and inexpensive sources. Even if liquid-metal-jet x-ray tubes tend to increase their photon flux, both sources are continuous excluding time-resolved studies.…”

mentioning

confidence: 99%

Exploring phase contrast imaging with a laser-based Kα x-ray source up to relativistic laser intensity

Gambari

Clady

Stolidi

et al. 2020

Sci Rep

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this study explores the ability of a hard K α x-ray source (17.48 keV) produced by a 10 TW class laser system operated at high temporal contrast ratio and high repetition rate for phase contrast imaging. For demonstration, a parametric study based on a known object (PET films) shows clear evidence of feasibility of phase contrast imaging over a large range of laser intensity on target (from ~10 17 W/cm 2 to 7.0 × 10 18 W/cm 2). To highlight this result, a comparison of raw phase contrast and retrieved phase images of a biological object (a wasp) is done at different laser intensities below the relativistic intensity regime and up to 1.3 × 10 19 W/cm 2. this brings out attractive imaging strategies by selecting suitable laser intensity for optimizing either high spatial resolution and high quality of image or short acquisition time.

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mentioning

confidence: 99%

Exploring phase contrast imaging with a laser-based Kα x-ray source up to relativistic laser intensity

Gambari

Clady

Stolidi

et al. 2020

Sci Rep

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“…For the imaging of pore-scale dynamics, their applicability can be limited by the lower limit of the focal spot size (approximately 5-6 μm) and the low energy of the generated X-rays, caused by the low atomic numbers of the materials used as liquid metal. Recently, a setup using Indium (characteristic Kα energy 24.2 keV) has also been used for hard X-ray imaging [23,24].…”

Section: X-ray Sourcesmentioning

confidence: 99%

Fast laboratory-based micro-computed tomography for pore-scale research: Illustrative experiments and perspectives on the future

Bultreys

Boone

Schryver

et al. 2016

Advances in Water Resources

146

119

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“…Besides, the surface tension of liquid metal is much higher than that of water, meaning that it is able to form a smoother surface of a flowing liquid line. Because of the chemical stability and physical safety, liquid metal, such as gallium, has been widely used in X-ray generation applications as well [68][69][70].…”

Section: Thz Wave Generation From Other Liquidsmentioning

confidence: 99%

Broadband THz Sources from Gases to Liquids

et al. 2021

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Matters are generally classified within four states: solid, liquid, gas, and plasma. Three of the four states of matter (solid, gas, and plasma) have been used for THz wave generation with short laser pulse excitation for decades, including the recent vigorous development of THz photonics in gases (air plasma). However, the demonstration of THz generation from liquids was conspicuously absent. It is well known that water, the most common liquid, is a strong absorber in the far infrared range. Therefore, liquid water has historically been sworn off as a source for THz radiation. Recently, broadband THz wave generation from a flowing liquid target has been experimentally demonstrated through laser-induced microplasma. The liquid target as the THz source presents unique properties. Specifically, liquids have the comparable material density to that of solids, meaning that laser pulses over a certain area will interact with three orders more molecules than an equivalent cross-section of gases. In contrast with solid targets, the fluidity of liquid allows every laser pulse to interact with a fresh area on the target, meaning that material damage or degradation is not an issue with the high-repetition rate intense laser pulses. These make liquids very promising candidates for the investigation of high-energy-density plasma, as well as the possibility of being the next generation of THz sources.

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Liquid-metal-jet x-ray tube technology and tomography applications

Cited by 15 publications

References 3 publications

Exploring phase contrast imaging with a laser-based Kα x-ray source up to relativistic laser intensity

Exploring phase contrast imaging with a laser-based Kα x-ray source up to relativistic laser intensity

Fast laboratory-based micro-computed tomography for pore-scale research: Illustrative experiments and perspectives on the future

Broadband THz Sources from Gases to Liquids

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