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X-ray detectors made of crystalline silicon have several advantages including low dark currents, fast charge collection and high energy resolution. For high-energy x-rays, however, silicon suffers from its low atomic number, which might…

Instrumentation and Detectors · Physics 2021-01-26 Moa Yveborg , Cheng Xu , Erik Fredenberg , Mats Danielsson

X-ray transition radiation can be used to measure the Lorentz factor of relativistic particles. At energies approaching gamma = E/mc^2 = 10^5, transition radiation detectors (TRDs) can be optimized by using thick (sim 5 - 10 mil) foils with…

Astrophysics · Physics 2009-11-07 M. L. Cherry , G. L. Case

As photon counting detectors are being explored for medical and industrial imaging applications, there is a critical need to understand spectral characteristics of scattered x-ray photons. Scattered radiation is detrimental to x-ray imaging…

Medical Physics · Physics 2022-12-14 Cale E. Lewis , Mini Das

Inverse Compton scattering of an ultra-relativistic electron in the field of a high-intensity laser produces photon beams with angular and spectral distributions that are strongly dependent on the laser intensity. Here, we show that the…

Plasma Physics · Physics 2024-07-17 K. Fleck , T. Blackburn , E. Gerstmayr , M. Bruschi , P. Grutta , M. Morandin , G. Sarri

Research in non-perturbative QED in strong-field backgrounds has gained interest in recent years, due to advances in high-intensity laser technologies that make extreme fields accessible in the laboratory. One key signature of strong-field…

We investigate the feasibility of detecting extensive air showers via their geo-synchrotron X-ray emission from high-altitude platforms. Starting from first principles, we derive a differential expression for the number of emitted photons…

High Energy Astrophysical Phenomena · Physics 2026-01-14 Rodrigo Alberto Torres Saavedra , Caterina Trimarelli , Roberto Aloisio , John F. Krizmanic , Johannes Eser , Austin Cummings

X-ray transition radiation can be used to measure the Lorentz factor of relativistic particles. Standard transition radiation detectors (TRDs) typically incorporate thin plastic foil radiators and gas-filled x-ray detectors, and are…

High Energy Physics - Experiment · Physics 2009-11-07 Gary L. Case , P. Parker Altice , Michael L. Cherry , Joachim Isbert , John W. Mitchell , Donald Patterson

X-ray Compton spectroscopy is one of the few direct probes of the electron momentum distribution of bulk materials in ambient and operando environments. We report high-resolution inelastic X-ray scattering experiments with high momentum and…

Instrumentation and Detectors · Physics 2022-11-30 U. Patel , T. Guruswamy , A. J. Krzysko , H. Charalambous , L. Gades , K. Wiaderek , O. Quaranta , Y. Ren , A. Yakovenko , A. Miceli

We consider the Compton scattering in the optically thick uniform spherical corona around a neutron star in an X-ray binary. In the scattering, the low energy seed photons (0.1 - 2.5 keV) are scattered in low energy electrons (2.5 - 10 keV)…

High Energy Astrophysical Phenomena · Physics 2024-11-22 ChangSheng Shi

We lay the foundations for a new fast method to reconstruct the electron density in x-ray scanning applications using measurements in the dark field. This approach is applied to a type of machine configuration with fixed energy sensitive…

Numerical Analysis · Mathematics 2015-05-08 James Webber

We present a theoretical study of Compton scattering of X- and $\gamma$-rays by a $K$-shell electron. Special attention is paid to the double-differential cross section and polarization of the scattered photons for linearly polarized…

X-ray is a ubiquitous imaging modality in clinical diagnostics and industrial inspections, thanks to its high penetration power. Conventional x-ray imaging system, equipped with energy-integrating detectors, collects approximately 1000 to…

Medical Physics · Physics 2020-08-24 Zheyuan Zhu , Shuo Pang

We present a new theoretical approach to attosecond laser-assisted photo- and Compton ionization. Attosecond x-ray absorption and scattering are described by $\hat{\mathrsfs{S}}^{(1,2)}$-matrices, which are coherent superpositions of…

Atomic Physics · Physics 2010-12-24 G. L. Yudin , D. I. Bondar , S. Patchkovskii , P. B. Corkum , A. D. Bandrauk

NEXT is a new experiment to search for neutrinoless double beta decay using a 100 kg radio-pure high-pressure gaseous xenon TPC. The detector requires excellent energy resolution, which can be achieved in a Xe TPC with electroluminescence…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 L. M. P. Fernandes , E. D. C. Freitas , M. Ball , J. J. Gómez-Cadenas , C. M. B. Monteiro , N. Yahlali , D. Nygren , J. M. F. dos Santos

X-ray free electron laser (XFEL) can provide X-ray light with about four order of magnitude higher flux than synchrotron radiation. Pulse light from XFEL interacts with the target and the resulting photons are collected by detectors. The…

Instrumentation and Detectors · Physics 2021-10-13 Shuo Zhang , Jing-Kai Xia , Xu-Dong Ju

3D Compton scattering imaging is an upcoming concept exploiting the scattering of photons induced by the electronic structure of the object under study. The so-called Compton scattering rules the collision of particles with electrons and…

Numerical Analysis · Mathematics 2020-07-02 Gael Rigaud

Bright sources of high energy electromagnetic radiation are widely employed in fundamental research as well as in industry and medicine. This steadily growing interest motivated the construction of several facilities aiming at the…

Plasma Physics · Physics 2018-07-31 Alberto Benedetti , Matteo Tamburini , Christoph H. Keitel

In this paper, we present the first measurements of x-rays produced with a compact, narrowband, and tunable inverse Compton scattering-based x-ray source, developed at Eindhoven University of Technology. A flux of $1.2 \cdot 10^3$ photons…

The advent of accelerator-driven free-electron lasers (FEL) has opened new avenues for high-resolution structure determination via diffraction methods that go far beyond conventional x-ray crystallography methods. These techniques rely on…

Motion management is a critical component of image guidance radiotherapy for lung cancer. We previously proposed a scheme using kV scattered x-ray photons for marker-less real-time image guidance in lung cancer radiotherapy. This study…

Medical Physics · Physics 2020-09-11 Yanqi Huang , Kai Yang , Youfang Lai , Huan Liu , Chenyang Shen , Yuncheng Zhong , Yiping Shao , Xinhua Li , Bob Liu , Xun Jia