News & Events
Nasim Fatemighomi (SNOLAB)
Event Details
McDonald Institute Seminar Series
Location: Queen's: STI 501 / YouTube
Date: March 19, 2026
Time: 12:30pm - 1:30pm
Dr. Nasim Fatemighomi is a research scientist at SNOLAB, collaborating on the SNO+, DEAP-3600, and nEXO experiments. Her work with SNO+ focuses on radon background mitigation — a critical challenge for neutrino less double-beta decay searches.
Radon Control and Measurement at SNOLAB for Rare-Event Experiments
Current and future underground physics experiments at SNOLAB are trying to answer two fundamental questions: why there is more matter than antimatter in the universe, and what is the nature of dark matter. Achieving these goals requires an extraordinary level of control over radioactive backgrounds, which can obscure or mimic the extremely rare signals being sought.
Among these, the decay products of radon-222 present one of the most persistent and challenging sources of background. In this talk, I will present a range of techniques and methods we have developed and applied to characterize and suppress radon backgrounds in SNOLAB experiments. I will also highlight ongoing research efforts at SNOLAB aimed at establishing ultra-low-radon systems—efforts that are crucial for enabling the next generation of rare-event searches.
The McDonald Institute seminar will be held in Stirling 501 and streamed live to the McDonald Institute YouTube channel.
A Zoom link is also available and shared via email by the organizers. Please reach out to admin@mcdonaldinstitute.ca for access.