Users' Executive Committee

The Users’ Executive Committee (UEC) serves as an arm’s length advisory group to the Canadian Light Source Science Director and as an advocate for the CLS’s user community. The UEC represents the interests of all CLS users; it provides recommendations and feedback to the CLS on opportunities to improve the user experience and enhance scientific capabilities, and it provides a mechanism for users to suggest recommendations for research programs and upgrades in alignment with the CLS Strategic Plan.

Users are strongly encouraged to contact the UEC or the individual members, as appropriate, for any concerns or inquiries with regard to the above or any of the following: disputes involving allocation of beam time; Beam Teams and potential membership; concerns over CLS policies and procedures (including health and safety); suggestions for targeted workshops, user training, seminars, summer schools, and the CLS education program; nominations for recipients for UEC Awards; or any other concerns they may have with regard to user issues or experiences at the CLS.

Committee membership:

Members are elected for a three-year term, renewable for no more than one term. Membership is intended to represent the scientific spectrum with an effort to achieve a balanced representation from the user communities in alignment with the key strategic research sectors of the CLS. Committee members are assigned one or more special interest groups to represent (i.e. Graduate Students, Advanced Materials, Health, Agriculture, Environment, Industry, Simulations, and Instrumentation). Users that fall within one of these groups should contact the relevant UEC member directly with any concerns specific to their interest group. Members are appointed by the UEC with input from the Science Director, and nominations from the user community. 

The UEC Members, effective January 2019:

UEC Chair: Ian Burgess, University of Saskatchewan


Michael Rogers, University of Guelph






Daniel Alessi, University of Alberta


Daniel Alessi is an associate professor and the Encana Chair in Water Resources at the University of Alberta.  His research focuses are environmental geochemistry, geomicrobiology and contaminant hydrogeology.  He primarily uses X-ray absorption and diffraction facilities at CLS.
Jeff Warner, Canadian Light Source




Jeff Warner is the Industrial Science Manager at the CLS. Dr. Warner was previously an environmental geochemist at Cameco Corporation and the 2016 CLS User's Advisory Committee chair. He informs the committee on industrial activities at the CLS and acts as an information conduit between the committee and CLS management.


David Cooper, University of Saskatchewan




David Cooper holds a Tier II Canada Research Chair in Synchrotron Bone Imaging at the University of Saskatchewan.  His research focuses on bone aging, adaptation and disease. He primarily makes use of computed tomography and X-ray fluorescence imaging. He is the BMIT Beam Team Leader for the CLS. 


Ian Burgess, University of Saskatchewan




Ian Burgess is a member of the Department of Chemistry at the University of Saskatchewan. His research interests include spectroelectrochemistry using synchrotron radiation. He is the Beamteam Leader of the CLS Mid-IR beamline and was a member of the former User Advisory Committee.

Serge Desgreniers, University of Ottawa




Serge Desgreniers is a Professor of Physics at the University of Ottawa, specializing in experimental studies of phase transitions and physical properties of condensed matter at extreme conditions. He is a regular synchrotron radiation user (X-ray scattering and IR spectroscopy) and beam team member at the CLS. He formerly chaired the CLS UAC and is currently the Scientific Advisory Committee member on the UEC.

Stefan Kycia, University of Guelph






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