Space Radiation
Element
The Space Radiation Element (SRE) of NASA’s Human Research Program (HRP) seeks to characterize human health outcomes associated with space radiation exposure, helping the space agency build strategies that protect astronaut health and ensure safe human spaceflight.
Meet the SRE Team
Element leaders integrate and coordinate science, as well as handle project costs, schedules, technical work, and resources. Across HRP, all leadership teams work hand-in-hand to ensure that research proposed by the other HRP elements is implemented using the best method possible while maintaining the health of crew members.
Meet the leadership team for HRP’s SRE. To contact them, email the group at jsc-hrp-space-radiation-element at mail.nasa.gov.
SRE Leadership
Jason Weeks, Element Manager
Weeks has more than 20 years of experience at NASA, including as a budget analyst for NASA’s chief financial officer.
Aaron Allcorn, Deputy Element Manager
Allcorn helps set the agenda for the Space Radiation element and manage its programs, informed by his more than 25 years in a variety of roles at NASA.
Janice Zawaski, Element Scientist
Zawaski has 15 years of radiation research experience. During graduate school, she studied the combined effects of radiotherapy and brain tumor presence on surrounding tissue.
Janapriya “JP” Saha, Deputy Element Scientist
Saha is a senior leader who helps oversee the Space Radiation element’s research activities, informed by more than 20 years of experience in the radiation research field.
Diana Cruz-Topete, Cardiovascular Discipline Lead
Cruz-Topete oversees research analyzing radiation-associated risks with the heart and blood vessels.
Gregory Nelson, Central Nervous System Discipline Lead
Nelson joined SRE on a part-time basis in his current role in 2014. His laboratory investigates dose rate effects on central nervous system responses to charged particles.
Marshleen Yadav, Cancer Discipline Lead
Yadav leads efforts to advance scientific knowledge about predicting and reducing the risk of space radiation-induced cancer.
