Engineering the Cold: Meet Jennifer Maceiko of Brookhaven’s Electron-Ion Collider

Photo by Brookhaven National LaboratoryJennifer Maceiko, a mechanical engineer at Brookhaven National Laboratory, designs cryogenic piping systems that will deliver liquid helium and liquid nitrogen to key components of the Electron-Ion Collider.
Brookhaven National Laboratory mechanical engineer Jennifer Maceiko plays a key role in the development of the laboratory’s next-generation accelerator as part of the Electron-Ion Collider Directorate.
Maceiko designs complex piping systems that will deliver critical coolants—such as liquid helium and liquid nitrogen—throughout the Electron-Ion Collider (EIC). Using specialized engineering software, she creates detailed models that ensure these cryogenic fluids reach accelerator components safely, efficiently, and reliably.
These cooling systems are essential to maintaining the precise operating conditions required for high-performance accelerator operations. Maceiko’s work helps bridge advanced mechanical engineering with cutting-edge nuclear physics, supporting the EIC’s mission to expand our understanding of the fundamental structure of matter.