Skip to main content
University of Wisconsin–Madison

NEW NAME Small Animal Imaging and Radiotherapy Facility (SAIRF)

Small Animal Imaging Facility now manages three X-ray irradiators

The Small Animal Imaging Facility has officially changed its name to Small Animal Imaging and Radiotherapy Facility (SAIRF) as it assumes management of three new X-ray producing irradiators (SARRP, XRAD320, and RS225) and for the facility’s capability to execute targeted radionuclide therapy (TRT) experiments. Please contact Justin Jeffery ( for more information and all training inquiries for these new services.

The SAIRF’s newest irradiator, the Small Animal Radiation Research Platform (SARRP) from Xstrahl, delivers targeted external beam radiation to pre-clinical animal models with great accuracy, conforming to a tissue of interest as is done in clinical radiotherapy. The system is equipped with a computed tomography (CT), allowing the user to contour a tissue of interest (ie. tumor) to evaluate the dose and to allow for animalized (akin to “personalized”) therapy.