1999- Member, Institute of Electrical and Electronics Engineers (IEEE)
2005 Technical committee, ICCCAS, Neural Networks and Computational Intelligence Track
2008-14 Technical committee, ICMLA, Applications of Machine Learning in Radiotherapy
2009-10 Organizer, ICMLA, Data Mining Methods for Modeling Treatment Outcomes in Cancer
2010 Technical committee, SSIAI, Image Analysis and Interpretation
2002- Member, American Association of Physicists in Medicine (AAPM)
2005- Member, Biological Effects Subcommittee
2011- Member, WG on Biological Effects of Hypofractionated Radiotherapy/SBRT
2011- Member, TG-211, Auto-Segmentation Approaches for PET
2011- Middle East Affairs Subcommittee
2003- Member, American Society for Radiology Oncology (ASTRO)
2014- Pediatric Normal Tissue Effects in the Clinic (PENTEC).
2007- Member, European Society for Therapeutic Radiology and Oncology (ESTRO)
2010 Member, Quantitative Analyses of Normal Tissue Effects in the Clinic (QUANTEC)
2011- Organizing committee for International Workshop on Monte Carlo for Radiation Therapy
2012-2015 Review committee, Canadian Institutes of Health Research (CIHR), Fellowship program
2013-2015 Member, Canadian Organization of Medical Physicists (COMP)
2013- Associate Editor, Medical Physics
2013- Associate Editor, International Journal of Radiation Oncology*Biology*Physics (red journal)
2014 Consultant, ICRU, report-100 (radiobiology)
2014- Review committee, Natural Sciences and Engineering Research Council (NSERC), Physics