is a certified health physicist with over 31 y of experience in dosimetry and a former lead U.S. Department of Energy Laboratory Accreditation Program (DOELAP) assessor. He provides training and consultation for dosimetry services and radiological protection programs.

Prior to consulting, Mr. Passmore worked 21 y at Landauer and 10 y in the DOE nuclear weapons complex managing external and internal dosimetry programs at Rocky Flats and Pantex. Mr. Passmore is an internationally known expert in dosimetry, radiation monitoring, radiation field characterization, regulatory compliance, and accreditation programs. In addition, he has >10 y of experience in serving as a Head of the Approved Dosimetry Services in Canada, United Kingdom, and Ireland. He also is a former DOELAP assessor with over 8 y of experience in this role.

Mr. Passmore serves as a U.S. delegate and technical expert to the International Electrotechnical Commission (IEC) TC45 and International Organization for Standardization (ISO) TC85, where he has been involved in influencing and developing several critical dosimetry standards (IEC 62387, ISO 21099, ISO 15690, ISO 15382, and ISO 14146). In addition to international standard committees, he also serves as a member of the Health Physics Society Standard Committee and is a member of NCRP.

Mr. Passmore holds an MS degree in Health Physics from National Technological University, a BS in Nuclear Engineering from Arizona State University, and a BS degree in both Physics and Engineering from Illinois College. He is also certified in Comprehensive Health Physics by the American Board of Health Physics.