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 November 2020:

UEC Chair: Ian Burgess, University of Saskatchewan


Michael Rogers, University of Guelph




Dr. Rogers is a Tier II Canada Chair in Food Nanotechnology at the University of Guelph, where he studies the underlying mechanisms that facilitate self-assembly of small molecules and degradation kinetics and mechanisms of foods.  His work appeared on the Covers of Chemical Society Reviews, Langmuir and Soft Matter, and includes 85 peer-reviewed publications, 18 book chapters, and more than 80 conference proceedings.  He has been awarded Young Scientist Awards through the International Union of Food Science and Technologists and the American Oil Chemists' Society.  By mimicking structures made by nature, he develops a fundamental understanding of how to control the assembly of small molecules into complex materials with applications ranging from foods to biomaterials Dr. Rogers has held faculty appointments at Rutgers University (Department of Food Science (2011-2015)) and the University of Saskatchewan (Department of Food and Bioproduct Science (2008-2011) before joining Guelph (2015 - ).  He currently serves as an Associate Editor with Food Biophysics (2014 - ).

Karen Tanino, University of Saskatchewan




Dr. Karen Tanino is a full professor at the University of Saskatchewan (USask).  She completed her B.Sc. (General Biology) in 1981 and M.Sc. (Crop Science) in 1983 at the University of Guelph, graduating with her Ph.D. (Horticulture Science) at Oregon State University in 1990.  Since 1989, she has been a faculty member of the Department of Plant Sciences, College of Agriculture and Bioresources, USask.  In 2006-2007 she was Acting Associate Dean (Academic).  Throughout her career, her area of research has focussed on plant abiotic stress physiology and she was one of the first plant scientists to have used the Canadian Light Source (CLS) synchrotron. She has written over 122 refereed publications and several books.  She has been active in promoting local food security through several conferences which she chaired.  She also initiated and founded the Prairie Horticulture Certificate Program, a home study based program across a consortium of four prairie universities and colleges with an enrolment of over 4500 students since its inception.  She was the second person to have been designated Global Fellow of Iwate University (Japan), was invited to be Adjunct Professor in the Dept. Crop Physiology, University of Agricultural Sciences (GKVK), Bangalore, India (currently ranked #1 in India), was President of the Canadian Society for Horticultural Science 2016-2018, and recently was honoured to receive the W.J. White Professorship 2021-2023.



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.

Matthew Lindsay, University of Saskatchewan




Dr. Lindsay is an Associate Professor in the Department of Geological Sciences at the University of Saskatchewan and the NSERC Industrial Research Chair in Mine Closure Geochemistry. His research examines mass-transfer and mass-transport processes with implications for water security and responsible resource development. His group uses synchrotron techniques (i.e., XAS, XRF, XRD) to study molecular-scale processes with larger-scale environmental implications.

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.



Janna Andronowski, Memorial University of Newfoundland




Janna Andronowski is an Assistant Professor of Clinical Anatomy in the Division of BioMedical Sciences, Faculty of Medicine, at Memorial University of Newfoundland. Her research focuses on the high-resolution 3D imaging of bone microarchitecture and the study of bone adaptation, quality, and fragility associated with substance abuse. She is a regular CLS user (BMIT-BM and BMIT-ID) and primarily makes use of computed tomography.

Mery Mendoza, University of Saskatchewan




Mery Mendoza is a graduate student in the Department of Geological Sciences at the University of Saskatchewan. Her research focuses on selenoproteins and their interactions with heavy metals. She worked with X-ray diffraction of macromolecules and currently uses X-ray absorption spectroscopy as the main technique for her research. She is a former president of the Graduate Students' Association and was member/chair of different committees and governing bodies of her university.


Advanced Materials

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.

Robert Green, University of Saskatchewan




Robert Green is an Assistant Professor in the Department of Physics and Engineering Physics at the University of Saskatchewan.  He is also an Affiliate Assistant Professor at the Stewart Blusson Quantum Matter Institute at the University of British Columbia.  He studies quantum materials using various x-ray spectroscopy and scattering techniques at the CLS.

Stefan Kycia, University of Guelph


Lijia Liu, University of Western Ontario.




Lijia Liu is an assistant professor at the Department of Chemistry, University of Western Ontario. Her research focuses on the study of advanced light-emitting materials, which are used in various fields such as optoelectronics, bioimaging, and sensing. The primary synchrotron techniques she uses are X-ray absorption fine structure (XAFS) and X-ray excited optical luminescence (XEOL).


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