Foss Therapy Service's work in the fields of clinical oncology, medical
research laboratories, bloodbanks, industrial radiation applications, and calibration laboratories is extensive. Our
experience spans 5 continents and 5 decades. We have performed service on Teletherapy units and Irradiators at institutions
such as MD Anderson Cancer Center, Mass. General Hospital, UCLA, Univ. Texas Medical Center, City of Hope Cancer Center, University
of Wisconsin, Aukland University and The Salk Institute. We have provided equipment and upgraded systems at several
calibration laboratories including KRISS, King Faisal Specialist Hospital and Research Center, Arpansa, and ANSTO.
In addition to our extensive work with Cobalt 60 Teletherapy equipment, over the last four years our focus
has expanded to include sales, service, installation, and decomissioning of research irradiators, blood product irradiation
units, and source calibration facilities - open beam, self-contained, and well sysytems. Recently, we have developed
the capabilty for field reloading/unloading of GammaCell 220 and JL Shepherd & Associates Model 109 Cobalt 60 Irradiators.
Foss Therapy Services, Inc. has developed the Model 812 Research Irradiator to meet the needs of its
customers. This system delivers high dose rates to large samples with extremely
low radiation levels to operating personnel. Dose rates of over 4,000,000 R/hr are available.
This system is designed for field reloads with the FTS source exchange system. The Model
812 has a stainless steel sample chamber, multiple sample positions, and a variety of accessories including dewars, test tube
holders and heaters.
A single purpose Model 812 system is being developed for production facilities who need a system to
deliver a standard dose. This unit will be simplified with fewer parts for greater
The Eldorado 78 Beam Irradiation System provides a High Curie Cobalt 60 beam with a variable collimator.
The system utilizes a ‘repurposed’ teletherapy head mounted onto a vertical stand.
The system was designed to be ‘Fail Safe’ as the source moves to the BEAM OFF position
in case of loss of power or loss of air supply. Source Positioning / Dose Output has been confirmed
to be extremely reliable / reproducible over the last 40+ years as a patient treatment system.
Another innovation is the field reloading of various Irradiators. We
have developed the tooling required to perform this procedure in order to decommission surplus systems
or to renew the capability of existing units.
We will continue to develop products to meet the ever
evolving needs of our customers.
Joseph S. Shepherd, President, has over 28 yeas of experience in the radiation device arena.
He is licensed to perform the following tasks: Source transfer procedures for Cobalt 60 and Cesium 137 sources. Installation
and servicing of Radiation devices, self-contained and open beam, Cobalt 60 and Cesium 137 up to 15,000 Curies. Mr.
Shepherd has additional expertise in Hot Cell loading and calibration of Cobalt 60 and Cesium 137 devices and sources to United
States NIST Traceable standards. Mr. Shepherd also has designed "The Cobalt Scalpel" Whole Body Radiosurgery
System which has received its US FDA 510K clearance and has six US patents associated with its creation.