Best Theratronics Ltd. is a Canadian component of TeamBest®.  Formerly part of MDS Nordion, we became a member of the Best family in March 2008.  We manufacture external beam therapy units and self-contained blood irradiators.

The TeamBest® group of companies brings with it a diverse range of knowledge from around the world that ensures customers will always have a clear and accurate answer.  TeamBest® is driven by one primary goal – to provide the best products and services to customers.

Please take some time to navigate our web site and learn more about what we have to offer.


Best Theratronics manufactures two distinct product lines – Self-Contained Irradiators and External Beam Teletherapy Machines.  There are several models of self-contained irradiators, each used for different applications and available in a variety of source configurations based on product throughput requirements.  These include the Gammacell® 1000 & 3000, Gammacell® 40, Gammabeam™ X200 and Raycell® Mk2 devices.

The external beam teletherapy machines are designed to provide advanced therapies to cancer patients worldwide.  There are two types of machines produced.  The Theratron® Equinox® is available in an 80 cm and 100 cm configuration and the GammaBeam™ 100 is available in only an 80 cm version.  Also available are the Avanza patient positioning table and the Multileaf Collimator, both common accessories for external beam teletherapy.

For more information on any of these products, please click the appropriate link above.