Dr. Duhaini currently is working with Varian Medical System as a Sr. Medical Physicist as of September 2021. Before that he was the Chief Medical Physicist (Radiation Oncology Department) and the Radiation Safety Officer from June 2004 till September 2021 at Rafik Hariri University Hospital (RHUH) in Beirut, Lebanon. In 2000, He earned a Master Degree in Medical Physics from Wayne State University Medical School in Detroit, Michigan, USA. Then he worked at several hospitals in Michigan: Detroit Medical Center, St. Mary Mercy hospital, and Oakwood Hospital. He also served as the Secretary General of the Great Lakes, Michigan Chapter of the AAPM from 2003 till 2004.

In 2006, he helped setting up the Lebanese Association of Medical Physics (LAMP). In 2008 he represented Lebanon as the Charter Member for establishing of the IMBCB (International Medical Physics Certification Board) and served in many committees since then. He was also the founding member of the Middle East Federation of Organizations of Medical Physics (MEFOMP) and served two terms as the President from 2009 till 2015. During that period, he helped establishing many societies in the region to form their own organization.

Dr. Duhaini served in many committees of the International Organization of Medical Physics (IOMP) namely: Education and Training, Professional Relations, Awards & Honors, and Calendar Editor for e-MPW. He is an Editor at Physica Medica Journal in Europe and Associate Editor at Health and Technology. He is currently the Treasurer of IOMP (2018-2025) and the Treasurer at IMPCB (2021-2023). He also volunteered as the TLD and DIRAC country coordinator with the IAEA for Lebanon since 2014.

Dr. Duhaini is also a member in the Pan American Health Care Exchange Organization and the Chemical, Biological, Radiological and Nuclear Experts Organization. He participated in more than 140 International Conferences and Medical Physics International meetings as either director, organizer, invited speaker, and/or participant. He is a consultant medical physics expert in the Middle East region with more than 23 years of experience in the field. He worked in Qatar as a Consultant Medical Physicist at Sidra Hospital and Turkish Hospital and as a Director of Radiation Safety at Hamad Medical Corporation.

He received many awards some of them are:

• International Day of Medical Physics Award IDMP in 2015
• the International Organization of Medical Physics Presidential Award in 2016
• the International Organization of Medical Physics Fellow Award (FIOMP) 2017
• the Lebanese University Pioneer Award 2018
• the International Organization of Medical Physics Recognition Award in 2022

Finally, Dr. Duhaini’s objective is to deliver the knowledge and expertise he has gained throughout the years and to serve his fellow colleagues in the profession to the best of his knowledge and capacity.