Suffolk Reporter

When a facility like the National Synchrotron Light Source II (NSLS-II) operates, it is easy to overlook the complexity and coordination required. This U.S. Department of Energy (DOE) Office of Science user facility at Brookhaven National Laboratory provides ultra-bright X-ray light for researchers worldwide. Technicians and engineers maintain systems crucial for producing this light.

Robert Todd leads the NSLS-II Vacuum Group, a team essential for maintaining a high-tech vacuum system necessary for research at the facility. "Vacuum can easily be taken for granted until you don’t have it," says Todd. The vacuum system removes gases that could interfere with electron beams and X-ray photons used in experiments, achieving pressures far lower than atmospheric levels.

The NSLS-II's vacuum system differs significantly from household vacuums, reducing pressure to an ultra-high vacuum level akin to outer space conditions. "We reduce the pressure down to an ultra-high vacuum, about one hundred-billionth of a torr," explains Todd. The process involves various pumps and specialized equipment to maintain low-pressure environments critical for research operations.

Todd notes few operational challenges due to sound design and a skilled team of 11 engineers and technicians. This allows focus on new beamline designs and potential accelerator upgrades. The group collaborates with other national laboratories on projects such as the Advanced Photon Source and Advanced Light Source, enhancing their expertise across different facilities.

Todd's career began at Brookhaven Lab in 1987 after studying mechanical engineering at SUNY Binghamton and internal combustion engines at SUNY Alfred. His interest in vacuum science was piqued by its application across industries beyond particle accelerators. He played a role in designing systems during the Relativistic Heavy Ion Collider project before joining NSLS-II.

Reflecting on his career, Todd encourages newcomers: "Don’t be afraid to explore the things that interest you." He values Brookhaven as a supportive community offering growth opportunities without needing to leave.

Outside work, Todd enjoys cars, athletic hobbies like triathlons, and spending time with family who share connections with NSLS-II through internships or education paths.

Looking ahead, NSLS-II aims to upgrade its accelerator technology towards more advanced generations of light sources: "Moving towards a fourth-generation machine...is exciting," states Todd as they explore new technologies for future developments.