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![Tree inference diagram for RNR sequence](/sites/default/files/styles/person_thumbnail/public/2022-10/tree_inference.jpg?itok=zforCgQX)
Protein family shows how life adapted to oxygen
Cornell scientists have created an evolutionary model that connects organisms living in today’s oxygen-rich atmosphere to a time, billions of years ago, when Earth’s atmosphere had little oxygen.
![pressure picture](/sites/default/files/styles/person_thumbnail/public/2022-09/pressure_image.png?itok=L1kyHkZn)
Nanocrystals with Metastable High-Pressure Phases Under Ambient Conditions
This groundbreaking work was supported by a collaboration between the PI an collaborators and CHEXS scientist Zhongwu Wang, spanning many years, across the former CHESS “B-line” beamline and the new CHEXS HPBio facilities. This work was enabled by custom diamond anvil cells with large opening angles for simultaneous SAXS / WAXS measurements, and by in-situ spectroscopy techniques deployed at CHESS
![Sol Gruner](/sites/default/files/styles/person_thumbnail/public/2018-01/sol_gruner_graphic.png?itok=TdUByg8e)
X-ray detector for studying characteristics of materials
Modern synchrotron x-ray sources, such as the Cornell High Energy Synchrotron (CHESS), produce x-ray beams with unprecedented capabilities.
![cooling the bunch](/sites/default/files/styles/person_thumbnail/public/2017-10/cooling_the_bunchtn.png?itok=sHQCQQWN)
Cool, calm and collected
CESR team aims to lower beam emittance with Optical Stochastic Cooling
![compound refractive lens](/sites/default/files/styles/person_thumbnail/public/2017-11/compound-refractive-lens.jpg?itok=dYjNIUo4)
Focusing on microbeam: Initial installment of CRLs at CHESS
A great challenge at many x-ray beamlines is to direct x-rays into in a very small, very clean footprint while maintaining high photon flux.
![""](/sites/default/files/styles/person_thumbnail/public/2018-02/wristwatch_graphic.jpg?itok=nIDNGqM-)
Development of charge integrating detectors for x-ray science at high energies
X-ray detectors are an essential part of every x-ray experiment. The most common sensor material for cutting-edge x-ray detection is presently silicon.