Severin Andreas Heyerdahl (1870 - 1940) was a Norwegian physician.

He was hired as the manager of the x-ray

X-ray

X-radiation is a form of electromagnetic radiation. X-rays have a wavelength in the range of 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz and energies in the range 120 eV to 120 keV. They are shorter in wavelength than UV rays and longer than gamma...

 department at Rikshospitalet

Rikshospitalet

Rikshospitalet is located in Oslo, Norway. From January 1, 2009, the hospital is part of Oslo University Hospital....

 in 1899, took the dr.med. degree in 1910 and worked as a lecturer in radiology

Radiology

Radiology is a medical specialty that employs the use of imaging to both diagnose and treat disease visualized within the human body. Radiologists use an array of imaging technologies to diagnose or treat diseases...

 from 1919. He was then instrumental in the establishment of the Norwegian Radium Hospital

Radiumhospitalet

The Norwegian Radium Hospital is a hospital in Oslo, Norway dedicated to cancer treatment. It is the largest cancer centre in Northern Europe, with 400 beds and around 2,000 employees. It was founded in 1932, with Severin Andreas Heyerdahl as chief physician and director, and Hans L. C...

in 1932. Heyerdahl served as chief physician from 1932 to 1938, and director from 1932 to 1939.