AEL AMS Webinar Series

Introducing the AEL AMS Laboratory Webinar Series


As a means to reach a broader research community and disseminate information about our laboratory, its technical capabilities, and the wide range of applications in AMS, the A. E. Lalonde AMS Laboratory will be hosting a series of webinars starting in February 2021.

The series will feature our specialized analytical facilities, expert staff, and guest speakers from a variety of fields. The webinars will offer users the opportunity to learn about new AMS techniques, explore applications in their field of interest, and connect with other users in the Canadian research community. We hope that these webinars will inspire new research initiatives that can take advantage of our world class facility.

Our first webinar will take place on Tuesday February 23, 2021, 12:00 - 13:30 EST and feature Dr. John Smith and Dr. Matthew Herod discussing applications of radioiodine, check out their abstracts below.

Abstracts & Recordings:



Applications of Radioiodine

February 23, 2021, 12:00-13:30 EST

The interpretation in a climate context of synoptic tracer 129I sections across the Arctic Ocean

Guest speaker: Dr. John Smith, Bedford Institute of Oceanography

During the 1990s, discharges of 129I from European nuclear fuel reprocessing plants increased by an order of magnitude resulting in a large, well resolved, tracer spike whose passage through the Arctic and North Atlantic Oceans via the “Arctic Loop Current” has been followed by time series measurements over the past 25 years. This robust and rapidly changing tracer signal has been used in conjunction with other gas (e.g. CFC-11, SF6) and radionuclide tracers (e.g. 137Cs, 236U) to calculate transit time distributions (TTDs), provide time scales for biogeochmical processes and constrain water circulation and mixing time scales for a wide range of high latitude water masses.
Webinar recording and transcript will be available following the event.

Radioactive Waste Regulation, Safety Case, and the Role of Iodine-129

Guest speaker: Dr. Matthew Herod, Canadian Nuclear Safety Commission

The Canadian Nuclear Safety Commission (CNSC) is Canada’s nuclear regulator, responsible for licensing and compliance of all nuclear facilities in Canada. This includes radioactive waste storage and disposal facilities. In the future, the CNSC will evaluate the safety of a potential deep geological repository (DGR) for Canada’s used nuclear fuel when a licence application is submitted. Natural analogues for DGR’s enable investigation of the key safety features of DGR’s in the natural world and assess their performance over geologic time. This experience is then applicable to assessing the ability of similar natural and engineered barriers in a proposed DGR. One of these projects is investigating the production and transport of iodine-129 in the world famous Cigar Lake natural analogue as 129I is the key isotope of concern in DGR safety assessments as it is a mobile fission product found in used nuclear fuel.
Webinar recording and transcript will be available following the event.