DR. AHMED BADRUZZAMAN holds a PhD in Nuclear Engineering and Science from Renssekaer Polytechnic Institute, Troy, NY, and has spent 35 years in the energy field leading research, application, and instructing cased and open-hole nuclear techniques. With Pacific Consultants and Engineers, based in California, Ahmed consults for the USDOE on assessing alternatives to radionuclide logging sources. He is also, presently, a Visiting Scholar at University of California in Berkeley, CA, where he advises the university of educational curriculums on nuclear logging and studies related to advanced techniques. As a scientist for Chevron (1991-2012), Ahmed excelled in his role of Internal Consultant on Nuclear Logging by developing the industry-standard three-phase algorithm to compute oil-saturation in steam floods, led R&D to assess nuclear tool response in complex environments using modeling, patented a non-chemical sources pseudo-density concept, pioneered the multiple-detector pulsed neutron tool idea for cased-hole applications, and developed the corporation's nuclear logging source safety guide. Ahmed's work experience also includes leading R&D for Sandia National Laboratories, Schlumberger-Doll Research, and Babcock & Wilcox, instructing a Graduate course at Berkeley (2001-2009), and consulting for International Atomic Energy Agency (IAEA) on their draft Well Logging Source Safety Guide (2011-2012). Dr. Badruzzaman is the author of over 40 papers, holds two patents, is the recipient of several SPE/SPWLA awards, and is currently writing a textbook on nuclear logging. He is also holds prestigious titles within the industry including Fellow of the American Nuclear Society, former SPE Distinguished Lecturer, SPWLA Distinguished Speaker, chairman of the SPWLA Nuclear Logging SIG, former chairman of the SPE DL Committee, former VP of Publication of SPWLA, and former editor of Petrophysics.