Leslie McHenry
Leslie McHenry is Applications Supervisor at XOS. For over a decade, Leslie has been helping leading laboratories and petroleum refineries around the world meet their testing needs. Leslie is an active member of the ASTM International community and has co-authored several ASTM XRF test methods. Prior to joining XOS, Leslie worked as a Petroleum Chemist at a North American petroleum refinery.
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Chase Douglas
Chase Douglas is the Director of Sales of Petroleum at XOS, bringing more than a decade of firsthand experience as both a petroleum industry leader and longtime XOS customer. Having utilized XOS solutions throughout his career in refinery and midstream operations, Chase offers a unique customer-driven perspective on quality control, operational efficiency, and regulatory compliance. His background in petroleum quality, operations, and product management allows him to partner closely with customers to deliver strategic solutions that maximize value, improve performance, and strengthen profitability across the petroleum supply chain.
Dr. Ning Gao
Dr. Ning Gao is a globally recognized expert in X-ray optics and their applications and has over two decades of experience in advanced X-ray optics, particularly in polycapillary X-ray optics. He works closely with XOS customers, from leading OEMs (original equipment manufacturers) in material testing industry to end-users from universities and national labs in pioneering research fields, to find the optimal solutions for their application needs. Dr. Gao is active in analytical X-ray industry community and in collaboration with top scientists on many pioneering research and development projects, including the PIXL instrument on the recently launched Mars Perseverance Rover.
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Christian Leedle
Christian Leedle is the Vice President of Sales and Service at XOS, leveraging over a decade of global industry experience implementing benchtop and online analytical equipment to drive process improvements. He has significant experience addressing the processing and analytical challenges of the petroleum and petrochemical markets, as well as challenges in parallel industries related to the broader energy transition. Prior to XOS, he worked for a major global specialty chemical provider in technology development and system improvement implementation plans.
Satbir Nayar
Satbir Nayar is the Senior Product Manager at XOS, leading the U.S. applications team. With over 15 years of experience in sales and product management, he brings a wealth of knowledge and expertise to support customers' application needs. His diverse background spans industries such as SaaS, High-Performance Materials, and Automated Surface Finishing Systems. Satbir is certified in Pragmatic Product Marketing and Total Quality Management.
Julian D. Van Berkum
Julian D. van Berkum is the Technical Sales and Application Specialist at XOS, bringing over a decade of laboratory experience since 2011, including roles from chemical analyst to lab manager. He specializes in renewable fuel analysis, using MWD-XRF solutions to help customers achieve accurate results. Julian is an active member of ISO, CEN, and NEN committees, contributing to industry standards. With a practical understanding of lab techniques and a customer-focused approach, he is a valuable resource for clients aiming to improve their measurements.
Brendan Waffle
With over 5 years of experience designing X-ray optics and repairing X-ray equipment, Brendan Waffle brings a proven track record of surpassing customer expectations and pioneering innovative solutions. Acknowledged as a strategic partner by XOS customers, Brendan goes beyond being just a consultant, demonstrating a unique ability to tailor customized solutions for national labs, universities, and X-ray equipment manufacturers.