scholarly journals A compact light source providing high-flux, quasi-monochromatic, tunable X-rays in the laboratory

2019 ◽  
Author(s):  
Benjamin Hornberger ◽  
Jack Kasahara ◽  
Martin Gifford ◽  
Ronald Ruth ◽  
Rod Loewen
Keyword(s):  
Light Source ◽  
High Flux ◽  
X Rays ◽  
Compact Light Source

The Munich Compact Light Source: initial performance measures

2016 ◽  
Vol 23 (5) ◽  
pp. 1137-1142 ◽  
Author(s):  
Elena Eggl ◽  
Martin Dierolf ◽  
Klaus Achterhold ◽  
Christoph Jud ◽  
Benedikt Günther ◽  
...  
Keyword(s):  
Light Source ◽  
Large Scale ◽  
Source Size ◽  
Relativistic Electrons ◽  
X Rays ◽  
Beam Hardening ◽  
X Ray ◽  
Inverse Compton Scattering ◽  
Inverse Compton ◽  
Compact Light Source

While large-scale synchrotron sources provide a highly brilliant monochromatic X-ray beam, these X-ray sources are expensive in terms of installation and maintenance, and require large amounts of space due to the size of storage rings for GeV electrons. On the other hand, laboratory X-ray tube sources can easily be implemented in laboratories or hospitals with comparatively little cost, but their performance features a lower brilliance and a polychromatic spectrum creates problems with beam hardening artifacts for imaging experiments. Over the last decade, compact synchrotron sources based on inverse Compton scattering have evolved as one of the most promising types of laboratory-scale X-ray sources: they provide a performance and brilliance that lie in between those of large-scale synchrotron sources and X-ray tube sources, with significantly reduced financial and spatial requirements. These sources produce X-rays through the collision of relativistic electrons with infrared laser photons. In this study, an analysis of the performance, such as X-ray flux, source size and spectra, of the first commercially sold compact light source, the Munich Compact Light Source, is presented.

scholarly journals Hard X-ray phase-contrast imaging with the Compact Light Source based on inverse Compton X-rays

2008 ◽  
Vol 16 (1) ◽  
pp. 43-47 ◽  
Author(s):  
Martin Bech ◽  
Oliver Bunk ◽  
Christian David ◽  
Ronald Ruth ◽  
Jeff Rifkin ◽  
...  
Keyword(s):  
Light Source ◽  
Phase Contrast ◽  
Phase Contrast Imaging ◽  
X Rays ◽  
Contrast Imaging ◽  
X Ray ◽  
Inverse Compton ◽  
Compact Light Source

BL2D-SMC, the supramolecular crystallography beamline at the Pohang Light Source II, Korea

2016 ◽  
Vol 23 (1) ◽  
pp. 369-373 ◽  
Author(s):  
Jong Won Shin ◽  
Kisu Eom ◽  
Dohyun Moon
Keyword(s):  
Light Source ◽  
Focal Spot ◽  
Variable Temperature ◽  
High Flux ◽  
X Rays ◽  
Full Width ◽  
Half Maximum ◽  
Pohang Light Source ◽  
Main Components ◽  
Ancillary Equipment

BL2D-SMC at the Pohang Light Source II is a supramolecular crystallography beamline based on a bending magnet. The beamline delivers high-flux tunable X-rays with energies from 8.3 to 20.7 keV and a 100 µm (horizontal) × 85 µm (vertical) full width at half-maximum focal spot. Experiments involving variable temperature, photo-excitation and gas sorption are supported by ancillary equipment and software in the beamline. The design of the beamline, its role and the main components are described.

scholarly journals High-brilliance, high-flux compact inverse Compton light source

2018 ◽  
Vol 21 (8) ◽  
Author(s):  
K. E. Deitrick ◽  
G. A. Krafft ◽  
B. Terzić ◽  
J. R. Delayen
Keyword(s):  
Light Source ◽  
High Flux ◽  
Inverse Compton

Performance of the vacuum ultraviolet high-resolution and high-flux beamline for chemical dynamics studies at the Advanced Light Source

1997 ◽  
Vol 68 (5) ◽  
pp. 1945-1951 ◽  
Author(s):  
P. A. Heimann ◽  
M. Koike ◽  
C. W. Hsu ◽  
D. Blank ◽  
X. M. Yang ◽  
...  
Keyword(s):  
High Resolution ◽  
Light Source ◽  
Vacuum Ultraviolet ◽  
High Flux ◽  
Chemical Dynamics ◽  
Advanced Light Source

scholarly journals The versatile X-ray beamline of the Munich Compact Light Source: design, instrumentation and applications

2020 ◽  
Vol 27 (5) ◽  
pp. 1395-1414 ◽  
Author(s):  
Benedikt Günther ◽  
Regine Gradl ◽  
Christoph Jud ◽  
Elena Eggl ◽  
Juanjuan Huang ◽  
...  
Keyword(s):  
Light Source ◽  
Phase Contrast ◽  
Phase Contrast Imaging ◽  
Contrast Imaging ◽  
X Ray ◽  
Inverse Compton Scattering ◽  
University Of Munich ◽  
Inverse Compton ◽  
Compact Light Source

Inverse Compton scattering provides means to generate low-divergence partially coherent quasi-monochromatic, i.e. synchrotron-like, X-ray radiation on a laboratory scale. This enables the transfer of synchrotron techniques into university or industrial environments. Here, the Munich Compact Light Source is presented, which is such a compact synchrotron radiation facility based on an inverse Compton X-ray source (ICS). The recent improvements of the ICS are reported first and then the various experimental techniques which are most suited to the ICS installed at the Technical University of Munich are reviewed. For the latter, a multipurpose X-ray application beamline with two end-stations was designed. The beamline's design and geometry are presented in detail including the different set-ups as well as the available detector options. Application examples of the classes of experiments that can be performed are summarized afterwards. Among them are dynamic in vivo respiratory imaging, propagation-based phase-contrast imaging, grating-based phase-contrast imaging, X-ray microtomography, K-edge subtraction imaging and X-ray spectroscopy. Finally, plans to upgrade the beamline in order to enhance its capabilities are discussed.

scholarly journals Linearly polarized X-ray fluorescence computed tomography based on a Thomson scattering light source: a Monte Carlo study

2020 ◽  
Vol 27 (3) ◽  
pp. 737-745
Author(s):  
Zhijun Chi ◽  
Yingchao Du ◽  
Wenhui Huang ◽  
Chuanxiang Tang
Keyword(s):  
Computed Tomography ◽  
Monte Carlo ◽  
Compton Scattering ◽  
Light Source ◽  
Thomson Scattering ◽  
X Rays ◽  
X Ray ◽  
Pile Up ◽  
Linearly Polarized ◽  
Scattering Light

A Thomson scattering X-ray source can provide quasi-monochromatic, continuously energy-tunable, polarization-controllable and high-brightness X-rays, which makes it an excellent tool for X-ray fluorescence computed tomography (XFCT). In this paper, we examined the suppression of Compton scattering background in XFCT using the linearly polarized X-rays and the implementation feasibility of linearly polarized XFCT based on this type of light source, concerning the influence of phantom attenuation and the sampling strategy, its advantage over K-edge subtraction computed tomography (CT), the imaging time, and the potential pulse pile-up effect by Monte Carlo simulations. A fan beam and pinhole collimator geometry were adopted in the simulation and the phantom was a polymethyl methacrylate cylinder inside which were gadolinium (Gd)-loaded water solutions with Gd concentrations ranging from 0.2 to 4.0 wt%. Compared with the case of vertical polarization, Compton scattering was suppressed by about 1.6 times using horizontal polarization. An accurate image of the Gd-containing phantom was successfully reconstructed with both spatial and quantitative identification, and good linearity between the reconstructed value and the Gd concentration was verified. When the attenuation effect cannot be neglected, one full cycle (360°) sampling and the attenuation correction became necessary. Compared with the results of K-edge subtraction CT, the contrast-to-noise ratio values of XFCT were improved by 2.03 and 1.04 times at low Gd concentrations of 0.2 and 0.5 wt%, respectively. When the flux of a Thomson scattering light source reaches 1013 photons s−1, it is possible to finish the data acquisition of XFCT at the minute or second level without introducing pulse pile-up effects.

scholarly journals The Munich Compact Light Source: Biomedical Research At a Laboratory-Scale Inverse-Compton Synchrotron X-ray Source

2018 ◽  
Vol 24 (S1) ◽  
pp. 984-985 ◽  
Author(s):  
Benedikt Günther ◽  
Martin Dierolf ◽  
Regine Gradl ◽  
Elena Eggl ◽  
Christoph Jud ◽  
...  
Keyword(s):  
Light Source ◽  
Biomedical Research ◽  
Laboratory Scale ◽  
X Ray ◽  
Inverse Compton ◽  
Compact Light Source
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