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The Center for Bright Beams, A National Science Foundation Science and Technology Center

Research

Vision: Transforming the brightness of beams available to science, medicine, and industry.

Each of these relies on beams of particles, and better beams lead to new capabilities.  CBB addresses three areas of beam science and technology:  beam production, beam acceleration, and beam dynamics and control. These all fit together in a research ecosystem.

Beam Production:

Bright, high-intensity electron beams are produced using the photoelectric effect, a phenomenon first explained by Einstein, in which laser light excites electrons out of a material called a photocathode.  CBB is gaining new insights into the photoemission process and is putting them to use to produce beams with unprecedented brightness. Find more information on the Beam Production page.

Beam Acceleration:

The gold standard for accelerating intense charged particle beams is the superconducting RF cavity, in which the beam “surfs” a powerful electric field to gain energy. CBB is developing next-generation SRF cavities that will vastly reduce their cost, increase energy sustainability, and simplify operation.  For the first time, the brightest beams will be available to industry and university research. Find more information on the Beam Acceleration Page.

Beam Dynamics and Control: 

Bright beams have complex behavior, so manipulating them can be an art.  CBB is conserving the brightness of beams from high-performance sources.  It is also inventing new techniques to increase the brightness of stored, by feeding information from the beam back on itself and using techniques such as machine learning to optimize beam transport. Find more information on the Beam Dynamics and Control page.

Partner

Project Leaders

Indispensable Expertise

Arizona State

Karkare

Photocathode materials

BYU

Transtrum

Theoretical condensed matter physics

UCLA

Musumeci, Rosenzweig

Laser applications for particle beams, beam self-interaction

U Chicago

Kim, Sibener

Particle physics, surface chemistry

Cornell

Arias, Bazarov, Hines, Liepe, Maxson, Muller, Sethna, Shen

Electronic structure calculation, photoemission & transport, surface characterization, accelerating cavities, photoemission & transport, electron microscopy, condensed matter theory, ARPES

U Florida

Hennig

Materials design

FNAL

Posen

Accelerating cavities

LBNL

Padmore

Photoemission & transport

Northern Illinois U Piot Beam physics
U New Mexico Biedron AI/Machine Learning, Accelerator and Laser Physics and Engineering, Systems Engineering

What is a bright beam? In bright particle beams, the particles are tightly packed and highly aligned. For particle beam applications ranging from X-ray sources to ultrafast materials imaging to colliders, brighter beams increase performance and open new opportunities.