Understanding the correlation between chemical and microstructural properties is critical for unraveling the fundamental relationship between materials chemistry and physical structures that can benefit materials science and engineering. Here, we demonstrate novel in situ correlative imaging of the X-ray Compton scattering computed tomography (XCS-CT) technique for studying this fundamental relationship. XCS-CT can image light elements that do not usually exhibit strong signals using other X-ray characterization techniques. This paper describes the XCS-CT setup and data analysis method for calculating the valence electron momentum density and lithium-ion concentration, and provides two examples of spatially and temporally resolved chemical properties inside batteries in 3D. XCS-CT was applied to study two types of rechargeable lithium batteries in standard coin cell casings: (1) a lithium-ion battery containing a cathode of bespoke microstructure and liquid electrolyte, and (2) a solid-state battery containing a solid-polymer electrolyte. The XCS-CT technique is beneficial to a wide variety of materials and systems to map chemical composition changes in 3D structures.

Compact X-ray sources based on inverse Compton scattering provide brilliant and partially coherent X-rays in a laboratory environment. The cross section for inverse Compton scattering is very small, requiring high-power laser systems as well as small laser and electron beam sizes at the interaction point to generate sufficient flux. Therefore, these systems are very sensitive to distortions which change the overlap between the two beams. In order to monitor X-ray source position, size and flux in parallel to experiments, the beam-position monitor proposed here comprises a small knife edge whose image is acquired with an X-ray camera specifically designed to intercept only a very small fraction of the X-ray beam. Based on the source position drift recorded with the monitor, a closed-loop feedback stabilizes the X-ray source position by adjusting the laser beam trajectory. A decrease of long-term source position drifts by more than one order of magnitude is demonstrated with this device. Consequently, such a closed-loop feedback system which enables stabilization of source position drifts and flux of inverse Compton sources in parallel to experiments has a significant impact on the performance of these sources.

The Compton Chamber of Commerce proudly presents the 16th Annual three-day overnight "Compton Veterans Stand Down" taking place September 14th through 16th at the Compton Resource Center Facility.

JIMMY IOVINE and DR. DRE have stepped forward to help COMPTON, CA residents during the COVID-19 pandemic. The duo is funding a program through the city of COMPTON that will provide drive-thru … more

The actor is facing 4 felony charges.

The duo have a long history of charitable endeavors.

The media moguls are stepping up.

Walter Thompson-Hernández's "The Compton Cowboys: The New Generation of Cowboys in America's Urban Heartland" tells a grand story in granular detail.

London : James Epps & Co., Limited, 1894.

Springfield, Virginia : National Technical Information Service, 1985.

A cyclist has died after being involved in a collision with a van.

Two Latino men associated with the Compton 155 street gang pleaded guilty today to federal hate crime charges related to a racially motivated attack on African-American juveniles at a residence in Compton, Calif. on New Year’s Eve.

Oxford : Oxford University Press, 2019.

Hayden Library - QP360.5.B365 2018

Hayden Library - PR6103.O51 W65 2018