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All-optical Compton sources combine laser wakefield accelerators and intense scattering pulses to generate ultrashort bursts of backscattered radiation. The scattering pulse plays the role of a short-period undulator in which relativistic…

Accelerator Physics · Physics 2023-05-25 Andreas Döpp , Igor Andriyash , Kim Ta Phuoc

Compton scattering is one of the fundamental interaction processes of light with matter. Already upon its discovery [1] it was described as a billiard-type collision of a photon kicking a quasi-free electron. With decreasing photon energy,…

The physics basis for an electron-beam based Compton scattering (ECOS) x-ray source is investigated for single-shot experiments at major high energy density facilities such as the Omega Laser Facility, National Ignition Facility, and Z…

Plasma Physics · Physics 2024-05-15 H. G. Rinderknecht , G. Bruhaug , V. Muşat , G. Gregori , H. Poole , G. W. Collins

Metallic microcalorimeters (MMCs) are cryogenic single-particle detectors that rely on a calorimetric detection principle. Due to their excellent energy resolution, close-to-ideal linear detector response, fast signal rise time and the…

The spectrum of laser-plasma generated X-rays is very important, it characterizes electron dynamics in plasma and is basic for applications. However, the accuracies and efficiencies of existing methods to diagnose the spectrum of…

Instrumentation and Detectors · Physics 2021-09-03 Jiaxing Wen , Minghai Yu , Yuchi Wu , Ming Zeng , Bo Zhang , Jirong Cang , Yuge Zhang , Ge Ma , Yue Yang , Wenbo Mo , Zongqing Zhao

Diverse searches for direct dark matter (DM) in effective electromagnetic and leptophilic interactions resulting from new physics, as well as Weakly Interacting Massive Particles (WIMPs) with unconventional electronic recoils, are…

Low-energy Compton scattering is an important background for sub-GeV dark matter direct-detection and other experiments. Current Compton scattering calculations typically rely on assumptions that are not valid in the low-energy region of…

High Energy Physics - Phenomenology · Physics 2023-10-05 Rouven Essig , Yonit Hochberg , Yutaro Shoji , Aman Singal , Gregory Suczewski

Based on the high sensitivity of Compton scattering off ultra relativistic electrons, the possibility of anisotropies in the speed of light is investigated. The result discussed in this contribution is based on the gamma-ray beam of the…

High Energy Physics - Experiment · Physics 2017-08-23 Dominique Rebreyend

X-ray continuum spectra of super-Eddington accretion flow are studied by means of Monte Carlo radiative transfer simulations based on the radiation hydrodynamic simulation data, in which both of thermal and bulk Compton scatterings are…

High Energy Astrophysical Phenomena · Physics 2017-12-20 Takaaki Kitaki , Shin Mineshige , Ken Ohsuga , Tomohisa Kawashima

We examine x-ray scattering from an isolated organic molecule from the linear to nonlinear absorptiveregime. In the nonlinear regime, we explore the importance of both the elastic and inelastic channelsand observe the onset of nonlinear…

Chemical Physics · Physics 2021-06-09 Phay J. Ho , Adam E. A. Fouda , Kai Li , Gilles Doumy , Linda Young

Electron energy loss spectroscopy is consolidating as a powerful tool to explore electronic (as well as vibrational) excitations of matter, including molecules. Performed in a scanning transmission electron microscope, this technique is…

Chemical Physics · Physics 2021-03-05 Ciro A. Guido , Enzo Rotunno , Matteo Zanfrognini , Stefano Corni , Vincenzo Grillo

We study theoretically the resonant inelastic x-ray scattering in quasi-one-dimensional insulating copper oxides, where the incident photon energy is tuned to the Cu1s-4p absorption energy. Our attention is focused particularly on the…

Strongly Correlated Electrons · Physics 2009-11-10 Takuji Nomura , Jun-ichi Igarashi

The non-linear Compton scattering rate in a rotating electric field is explicitly calculated for the first time. For this purpose, a novel solution to the Klein-Gordon equation in the presence of a rotating electric field is applied. An…

High Energy Physics - Phenomenology · Physics 2016-12-14 Erez Raicher , Shalom Eliezer , Arie Zigler

We discuss the work aimed at studying the momentum density of high Tc superconducting oxides using Compton profile and positron annihilation spectroscopies.

Superconductivity · Physics 2007-05-23 B. Barbiellini , P. M. Platzman

Compton scattering is a well-established technique that can provide detailed information about electronic states in solids. Making use of the principle of tomography, it is possible to determine the Fermi surface from sets of…

Materials Science · Physics 2022-11-10 J. Otsuki , K. Yoshimi , Y. Nakanishi-Ohno , M. Sekania , L. Chioncel , M. Mizumaki

X-ray scattering has been an indispensable tool in advancing our understanding of matter, from the first evidence of the crystal lattice to recent discoveries of nuclei's fastest dynamics. In addition to the lattice, ultrafast resonant…

A novel, non-invasive method of measuring the beam energy at the International Linear Collider is proposed. Laser light collides head-on with beam particles and either the energy of the Compton scattered electrons near the kinematic…

Instrumentation and Detectors · Physics 2009-08-05 N. Muchnoi , H. J. Schreiber , M. Viti

For inner magnetospheric models of hard X-ray and gamma-ray emission in high-field pulsars and magnetars, resonant Compton upscattering is anticipated to be the most efficient process for generating continuum radiation. This is due in part…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Matthew G. Baring , Zorawar Wadiasingh , Peter L. Gonthier

Compton scattering between electrons and photons plays a crucial role in astrophysical plasmas. Many important aspects of this process can be captured by using the so-called Compton scattering kernel. For isotropic media, exact analytic…

Cosmology and Nongalactic Astrophysics · Physics 2019-10-03 Abir Sarkar , Jens Chluba , Elizabeth Lee

X-ray polarization measurement of cosmic sources provides two unique parameters namely degree and angle of polarization which can probe the emission mechanism and geometry at close vicinity of the compact objects. Specifically, the hard…

Instrumentation and Methods for Astrophysics · Physics 2015-10-26 T. Chattopadhyay , S. V. Vadawale , S. K. Goyal , Mithun N. P. S. , A. R. Patel , R. Shukla , T. Ladiya , M. Shanmugam , V. R. Patel , G. P. Ubale