Canada's National Laboratory for Particle and Nuclear Physics Laboratoire national canadien pour la recherche en physique nucléaire et en physique des particules


From TRIUMF, BC Cancer Agency, Centre for Probe Development and Commercialization, Lawson Health Research Institute, and Advanced Applied Physics Solutions, Inc., the CycloTech99    team brings together:

  • Physicists;
  • Nuclear chemists;
  • Radiochemists;
  • Pharmacologists;
  • Biologists;
  • Technicians; and
  • Clinicians.

The overall CycloTech99 team is headed by Paul Schaffer.  The key TRIUMF members are:


Dr. Paul Schaffer


Principal Investigator; Technical Lead: Tc-99m Purification/Isolation


Dr. Schaffer is Head of the Nuclear-Medicine Division at TRIUMF. 

He comes to TRIUMF from GE’s Global Research Centre where he was responsible for the research and development of novel radiotracers for GE Healthcare’s radiopharmaceutical pipeline. His expertise is in radiochemistry and he has over a decade of experience working on technetium-based radiopharmaceuticals. He recently obtained funding from WD Canada to bolster TRIUMF’s GMP compliance through the construction of a clean facility for tracer production.



Dr. Thomas J. Ruth

TRIUMF and the BC Cancer Agency

Special Advisor, Emeritus


Dr. Ruth is a nuclear chemist by training with more than four decades of experience.

He is an expert in isotope production, extraction, and purification; radiochemical synthesis and formulation; and molecular imaging using PET-based compounds.

He oversaw operation of the TRIUMF medical-isotope cyclotron for routine production of clinical research isotopes for the Pacific Parkinson’s Research Centre and the BC Cancer Agency. He has also pioneered the design and implementation of target technologies.

Ruth is an internationally recognized expert in nuclear medicine and regularly serves on IAEA and U.S. National Academies committees.


Mr. Ken Buckley


Project Manager; Technical Support: Targetry

Mr. Buckley has over 20 years of experience in target research and design.

Mr. Buckley maintains a deep understanding of the business of making medical isotopes and has played a major role in the implementation of TRIUMF’s Quality Mananagement System and has also served as project manager for a number of team-based projects at TRIUMF.


Dr. Stefan Zeisler


Co-investigator; Project Manager; Technical Support: Targetry

Dr. Zeisler is former head of TRIUMF’s Accelerator Technology Group (ATG) which is responsible for the ongoing operations, maintenance, and repair of the three Nordion cyclotrons in Vancouver. Dr. Zeisler is trained as a radiochemist and maintains a deep understanding of the business of making medical isotopes for commercial distribution.


Victoire Hanemaayer


Radiochemist, Targetry

Ms. Hanemaayer has 8 years experience in designing and fabricating high power, solid-targets for the ISAC facility at TRIUMF, as well as bringing knowledge in refractory-metals chemistry.


Julius Klug


Mr. Klug is a Mechanical Engineer with years of experience in TRIUMF's Advanced Technology Group. He brings experience in high-powered target design and fabrication. This experience will allow TRIUMF to build reliable high-current targets for commercial-scale Tc-99m production. 

Maurice Dodd


Mr. Dodd is an Electromechanical Engineer with decades of experience in designing automated systems for the remote manipulation of large quantities of radioactivity. Mr. Dodd's experience will allow the TRIUMF team to build and distribute automated purification units to our partners in order to separate Tc-99m from the Mo-100 target material. Prior to his time at TRIUMF, Mr. Dodd spent 10 years managing the PET cyclotron in Aberdeen, Scotland. 



About the BC Cancer Agency
The BC Cancer Agency, an agency of the Provincial Health Services Authority, is committed to reducing the incidence of cancer, reducing the mortality from cancer, and improving the quality of life of those living with cancer. It provides a comprehensive cancer control program for the people of British Columbia by working with community partners to deliver a range of oncology services, including prevention, early detection, diagnosis and treatment, research, education, supportive care, rehabilitation and palliative care. The BC Cancer Foundation raises funds to support research and enhancements to patient care at the BC Cancer Agency. To learn more, visit

About the Centre for Probe Development and Commercialization (CPDC)
CPDC discovers, develops and distributes molecular imaging probes for the early diagnosis of diseases and to assess the effectiveness of treatments. An important part of Ontario's health system, CPDC provides a reliable, daily supply of imaging probes to hospitals across the province. CPDC also works collaboratively with industry and academic partners, offering the research, manufacturing and regulatory expertise needed to move innovative probe technology and new therapeutic drugs from R&D labs to clinical use. CPDC, located on the McMaster University Campus, is a Centre of Excellence for Commercialization and Research, part of the Networks of Centres of Excellence Program. It is supported by the Ontario Institute for Cancer Research, GE Healthcare, Cancer Care Ontario, and McMaster University. To learn more, visit and

About Lawson
Lawson Health Research Institute, located in London, Ontario, is one of Canada's largest and most respected hospital-based research institutes. As the research arm of London Health Sciences Centre and St. Joseph's Health Care, London, and working in partnership with The University of Western Ontario, Lawson is committed to furthering scientific knowledge to advance health care around the world. Its state-of-the-art, 6,000 sq. ft. Nordal Cyclotron & PET Radiochemistry Facility opened on March 31, 2010 and includes a GE PETtrace 8 cyclotron with proton and deuteron acceleration capability, class 100 shielded hot cells, and automated chemistry units for producing F-18 and C-11 radiopharmaceuticals – all to GMP specifications. To learn more, visit and

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