Consultant for Electron Beam Sterilization

Technical Consultant #1700


  • Evaluate products for feasibility of electron beam sterilization, including materials compatibility, dose distribution and process efficiency.
  • Determine electron beam equipment requirements - power, energy and other.
  • Estimate dose distributions and perform detailed studies of max/min ratios.
  • Provide capital and operating cost estimates and prepare or review capital investment schedules and business plans.
  • Prepare and evaluate equipment tender documents with potential suppliers.
  • Provide facility design concepts supported by Monte Carlo based shielding analyses.
  • Prepare licensing applications and make presentations to licensing bodies including defense of applications.
  • Analyze staff requirements for operating a sterilization plant and provide radiation safety training.
  • Irradiation advisement for a wide variety of foods, grains, plastics, waste streams, cellulosics, gemstones and other materials.
  • Expert witness in U.S. trial related to medical accelerator injury claim.
  • Specific areas of electron beam expertise include the following:
  • Electron-beam sterilization.
  • Food irradiation.
  • Industrial sterilization.
  • Ionizing radiation.
  • Irradiation.
  • Irradiation sterilization.
  • Medical device irradiation sterilization.
  • Sterilization engineering.
  • Sterilization processing technology.
  • Terminal sterilization.


Undisclosed Company, Ottawa, Ontario, Canada, Principal Partner, 1998 - Present

  • Founding partner of an independent consulting firm.
  • Advised major medical device manufacturers on the specification and supplier list for suitable electron beam equipment.
  • Developed and patented a self shielded concept for production line electron beam sterilization.

Atomic Energy of Canada Ltd., Ottawa, Ontario, Canada, 1969 - 1998

General Manager Accelerator Business Unit, Electron Beam Accelerator Marketing

  • Made technical sales presentations to clients and potential clients for electron beam equipment.
  • Prepared information for clients to use with national and state regulatory bodies.
  • Prepared public relations literature and marketing brochures and presented talks to regional development organizations.
  • Prepared competitive analyses of the various electron beam accelerators and with Et-O and Cobalt -60 alternatives.
  • Prepared sales offers and detailed cost/ price analyses.
  • Analyzed market potentials and competitor activities.
  • Prepared a database of world industrial electron beam installations.
  • Prepared marketing documentation including application notes, brochures and organized trade show activities.

Accelerator Development

  • Established a user friendly specification for IMPELA 10 MeV 60 kW Electron Accelerator operator interface.

Business Development

  • Prepared detailed business models and proposals for multi-use radiation processing businesses in North America and U.K., the Irish Development Board and Welsh Development Authority.
  • Provided seminars on electron beam for: The Parenteral Drug Association, General Foods, The King Abdul Azzis Science Center - Saudi Arabia and he Malaysian Ministry of Agriculture.

Product Manager, 1982 - 1985

  • Directed the redesign and upgrade of the Theratron Cobalt Teletherapy product line and revised pricing and sales of Cobalt 60 teletherapy sources.

Manager Marketing Services, 1979 - 1982

  • Supervised a team of four specialists providing technical support to sales covering electron accelerator and cobalt teletherapy, X-ray simulation of radiation treatment and computerized calculation of dose distributions.
  • Represented the Company on ISO and AAMI standards committees.

Project Manager, 1972 - 1979

  • Directed the design, and development and established the basis for manufacturing of the Therac 6 electron accelerator cancer teletherapy unit and lead the prototype clinical installation.
  • This machine was the first to embody full computer monitoring and control of operation.
  • 40 units went into service and in 2000, almost all were still in clinical use.

Various Projects: Conducted in United Kingdom and Canada, 1969 - 1972

  • Developed small radioisotope powered electric power sources.

Honors & Publications

Academic and Professional Affiliations

  • Registered Professional Engineer, Province of Ontario


  • Peer reviewed articles and author of educational text
  • Patents filed in United States and Canada


  • MBA University of Ottawa, Canada
  • B.A. Physics (with honors), Oxford University, United Kingdom
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