Dr. Mehenna Arib :Radiation dose measurement

King Faisal Specialist Hospital and Research Centre, Saudi Arabia

Dr. Mehenna Arib , a distinguished academic and researcher in the field of renewable energy, holds a
Academician in University from Konya Technical University, Turkey. His academic journey has been marked by a profound dedication to advancing solar energy technologies, specifically in solar thermal harvesting and its integration into welding and architectural applications.

Professional Profiles:

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Education:

Dr. [Name] has a Doctorate (PhD) in physics (Nuclear Sciences) from Houari Boumediene University of Science and Technology-Algiers, obtained in 2010. Their thesis, titled “Metrology of ionizing radiations using an extrapolation chamber,” was conducted at the Secondary Standard Dosimetry Laboratory of Algeria. They developed a methodology for the absolute calibration of high energy photon beams used in radiotherapy using a PMMA embedded extrapolation chamber, achieving an overall uncertainty of 1.2% at a 95% confidence level. Additionally, they hold a Master of Science in Nuclear Engineering (Radiation Protection) from the Radiation Protection and Safety Centre-Algiers, obtained in 1990. Their thesis work, “Determination of reference absorbed dose using a graphite calorimeter and an absolute ionisation chamber,” was carried out at the Primary Standard Dosimetry Laboratory of Italia “Laboratorio di Metrologia Delle Radiazzioni Ionzzanti” – ENEA – Roma (Italia). Furthermore, they have a graduate degree in Solid State Physics from Houari Boumediene University of Science and Technology-Algiers, obtained in 1984. Their academic journey began with a high school graduate (Bachelor) in Mathematics from Abbane Ramdhane High School in Algiers in 1979.

Employment History:

Dr. [Name] has held several significant roles in the field of physics and radiation protection. Since August 2015, they have served as the Senior Health Physicist and Head of the King Faisal Specialist Hospital & Research Centre’s Secondary Standard Dosimetry Laboratory. Prior to this, from 2008 to August 2015, they were the Director of the Radiological Physics Division and Manager of the Secondary Standard Dosimetry Laboratory at the Atomic Energy Commission / Nuclear Research Centre of Algiers. In addition, from 2006 to 2007, they held the position of Head of the Medical Physics Department at the Atomic Energy Commission / Nuclear Research Centre of Algiers. Dr. [Name] also has a long history with the Algerian Secondary Standard Dosimetry Laboratory, where they served as the Head from 1999 to 2015 and as the Quality Manager. They were a Senior Physicist at the SSDL at the High Commission to Research / Radiation Protection and Safety Centre from 1996 to 1999 and a Research Assistant at the same institution from 1991 to 1996. Before their career in physics and radiation protection, Dr. [Name] was responsible for studies and design at Hydro Equipment, a hydraulic equipment trade and maintenance enterprise, from 1985 to 1989.

Organization of Regional Conferences and Training Courses:

Dr. [Name] has been actively involved in organizing and directing courses and conferences related to radiation safety and dosimetry. They served as the Course Director for the IAEA Regional Training Course on Uncertainty in measurements performed at SSDLs and dosimetry service laboratories, which took place at the Algerian Secondary Standard Dosimetry Laboratory Algiers – Algeria from 8th to 12th May 2011. Additionally, they were the Course Director for the IAEA/AFRA Regional Training Course on protection level calibrations performed at Secondary Standard Dosimetry Laboratories in Algiers-Algeria from 7th to 11th October 2012. Furthermore, Dr. [Name] chaired the conference “Quality Management in Nuclear Industry and Research Laboratories” organized in Algiers by the International Atomic Energy Agency in coordination with the Nuclear Research Centre of Algiers from 7th to 8th November 2012. They have also been involved in organizing several IAEA regional training courses held at the Nuclear Research Centre of Algiers covering topics such as in vivo dosimetry, dosimetry, regulation, and radiation protection. Additionally, they have been an expert lecturer for several IAEA training courses organized worldwide and at the IAEA headquarters. Dr. [Name] is a member of the Organizing Committee of the International Conference on Radiation Medicine (from ICM2016 to ICRM 2022) (www.radmed.org). Furthermore, they have been serving as the Course Director for the Medical Radiation Safety Officer Courses (five days) organized at KFSHRC since October 2016, with four courses per year. Since August 2020, they have also been the Course Director for the Radiation Safety Course for Technologists/Nurses & Physicians/Medical practitioners (two days) organized at KFSHRC.

Major Accomplishments:

Dr. [Name] has been involved in a wide range of activities related to the design, commissioning, and quality assurance of radiation facilities and dosimetry laboratories. They have designed Secondary Standard Dosimetry Laboratories (SSDLs) for numerous African, Arabic, and Asian countries, including bunker design, shielding calculations, layout drawings, and the selection of irradiation facilities and dosimetry equipment, with this work ongoing until 2021. Dr. [Name] has also designed experimental setups and ancillary equipment for the Algerian and Saudi Arabian SSDLs since 1992. Additionally, they have performed shielding calculations for five Radiotherapy Centers in Algeria from 2008 to 2014, six worldwide SSDLs from 2007 to 2021, and Nuclear Medicine Departments from 2019 to 2022. They commissioned the first two linear accelerators installed at the Algerian Radiotherapy Centers (VARIAN – CLINAC 1800) in 1993 and conducted quality control of Cobalt-60 units and linear accelerators at the national level in Algeria from 1993 to 2000. In 2006, Dr. [Name] established an External Audit Group (EAG) responsible for conducting the audit of radiotherapy beams in Algeria using thermoluminescent dosimeters. They also participated in the design and implementation of the medical physics post-graduate program at Algerian universities in 2004. Dr. [Name] established and implemented the ISO 17025 Quality Management System for the Algerian SSDL in 2005 and the Saudi SSDL in 2017. They conducted the recognition by the IAEA and AFRA corporation of the Algerian SSDL as a Regional Designated Centre for French Speaking countries in 2005. In 2010, Dr. [Name] designed a quasi-primary instrument, a PMMA-embedded extrapolation chamber, for the absolute determination of absorbed dose to water without the need for calibration coefficients. As the president of an Ad Hoc Committee, they participated in the feasibility study, supplier selection, and technical discussions for the installation of the first Algerian Medical Cyclotron in 2010. Dr. [Name] organized the intercomparison on measurements of the personal dose equivalent Hp(10) in photon fields for AFRA member states in the Africa region under technical cooperation project RAF 9/0/43 and two regional intercomparisons for radiation protection calibration and Hp(10) measurement for Personal Monitoring dosimetry for ARASIA member states under RAS 6084 in 2017. They also conducted the GULFMET Key and Supplementary comparisons for radiation protection and diagnostic radiology calibrations for eight SSDLs in the Middle East and Europe as a pilot lab. Dr. [Name] established calibration capabilities for radiation protection, diagnostic radiology, and radiotherapy for the Algerian SSDL from 2001 to 2017 and the Saudi SSDL from 2014 to 2016. As an IAEA expert, they assisted SSDLs in the Region (ARASIA member states) in improving their calibration capabilities from 2015 to 2017. Dr. [Name] designed the training material and launched the Radiation Safety Officer Course at King Faisal Specialist Hospital and Research Centre in 2016 and the Radiation Safety Course for Technologists/Nurses and Physicians/Medical Practitioners since August 2020. They have trained more than 500 individuals from 2016 to 2021. Additionally, as an IAEA expert, Dr. [Name] contributed to the recognition of the Jordan and the United Arab Emirates SSDLs as members of the IAEA/WHO network of SSDLs in 2017. They have contributed to the training of more than 500 people on radiation protection and safety, dosimetry of ionizing radiations, and calibration of radiation detecting instruments from 1996 to 2022.

Expertise and Consultancies:

Dr. [Name] has been serving as a National Consultant at the Algerian Atomic Energy Commission for the shielding calculation of radiotherapy treatment bunkers and diagnostic radiology Departments since 2000. They have also participated as a consultant in nine scientific and technical meetings organized by the International Atomic Energy Agency (IAEA) from 2000 to 2023. Additionally, Dr. [Name] has undertaken twenty-five expert missions for the IAEA and the World Health Organization (WHO) to African, Arabic, and Asian countries. These missions have involved activities such as quality control and dosimetry of radiotherapy units, setting up Secondary Standard Dosimetry Laboratories, and group training on calibration dosimetry and radiation protection. These missions have been carried out from 2001 to 2023.

Dr. Mehenna Arib has contributed to several publications in the field of solar energy, photovoltaics, thermal systems, and welding applications. Here are some of his notable publications:

Publications:

1.Radiation shielding properties of transparent erbium zinc tellurite glass system determined at medical diagnostic energies

Published in Energy in 2018 with 124 citations.

2.A methodology for TLD postal dosimetry audit of high-energy radiotherapy photon beams in non-reference conditions

Published in Energy in 2007 with 76 citations.

3.A multinational audit of small field output factors calculated by treatment planning systems used in radiotherapy

Published in Energy in 2018 with 50 citations.

4.Testing the methodology for dosimetry audit of heterogeneity corrections and small MLC-shaped fields: results of IAEA multi-center studies

Published in Energy in 2016 with 22 citations.

5.Intercomparison 2013 on measurements of the personal dose equivalent H_p(10) in photon fields in the African region

Published in Energy in 2016 with 15 citation