Advanced Cyclotron Systems, Inc. (ACSI) is a company based in Richmond, British Columbia,

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

that supplies and services cyclotrons predominantly used for the production of medical isotopes by hospitals for nuclear medicine. The company was a spin-off of the research program at

TRIUMF TRIUMF is Canada's national particle accelerator centre. It is considered Canada's premier physics laboratory, and consistently regarded as one of the world's leading subatomic physics research centers. Owned and operated by a consortium of uni ...

. The machines are used for the production of isotopes used in Positron emission tomography (PET), Single-photon emission computed tomography (SPECT) or production of

technetium-99 Technetium-99 (99Tc) is an isotope of technetium which decays with a half-life of 211,000 years to stable ruthenium-99, emitting beta particles, but no gamma rays. It is the most significant long-lived fission product of uranium fission, produc ...

for molecular imaging. ACSI controls approximately half the world market for such machines, Four models of cyclotrons are offered: * ''TR-19'' (14 MeV to 19 MeV) variable energy negative ion cyclotrons * ''TR-24'' (15 to 24 MeV) high current cyclotron used for the production of PET and SPECT isotopes; including one machine installed at the Université de Sherbrooke, * ''TR-FLEX'' (18 MeV up to 30 MeV) high current cyclotron used for PET and SPECT isotopes. * ''TR-30'' (15 MeV to 30 MeV) high current cyclotron used for SPECT isotopes.

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Advanced Cyclotron Systems
{{Vancouver Corporations Medical technology companies of Canada Companies based in Richmond, British Columbia Particle accelerators