About SPR

1939

Dr. Schons Launches First Super-High Volt Radiation Facility
Starts the first super-high radiation facility in the United States at Miller Hospital in St. Paul, now United Hospital.

1940

First Cyclotron
The Rockefeller Foundation funded the first cyclotron dedicated for biomedical radiosotope production at Washington University in St. Louis, MO.

1940

Ultrasound Used for Diagnosis
Dr. Dussik a neurologist first uses ultrasound as a diagnostic tool.