Jan Vincents Johannessen (born 25 May 1941) is a Norwegian physician, cancer researcher, hospital director, painter, text writer and composer. He was born in

Kristiansand Kristiansand is a city and Municipalities of Norway, municipality in Agder county, Norway. The city is the fifth-largest and the municipality is the sixth-largest in Norway, with a population of around 116,000 as of January 2020, following th ...

. He is known for his research on cancer, and has published books on diagnostics by the use of

electron microscopy An electron microscope is a microscope that uses a beam of electrons as a source of illumination. It uses electron optics that are analogous to the glass lenses of an optical light microscope to control the electron beam, for instance focusing i ...

. He has served as manager of the

Norwegian Radium Hospital Oslo University Hospital, Radiumhospitalet () is one of the four campuses of Oslo University Hospital in Oslo, Norway, and is dedicated to cancer treatment. This part of the hospital is the most specialized hospital in Norway for cancer therapy and ...

. He was decorated Commander of the

Order of St. Olav The Royal Norwegian Order of Saint Olav (; or ''Sanct Olafs Orden'', the old Norwegian name) is a Norwegian order of chivalry instituted by King Oscar I on 21 August 1847. It is named after King Olav II, known to posterity as St. Olav. Just be ...

in 1994. He is a fellow of the

Norwegian Academy of Technological Sciences The Norwegian Academy of Technological Sciences (, NTVA) is a learned society based in Trondheim, Norway. Founded in 1955, the academy has about 500 members. It is a member of the International Council of Academies of Engineering and Technologica ...

References

1941 births Living people People from Kristiansand Directors of hospitals of Norway Members of the Norwegian Academy of Technological Sciences Commanders Crosses of the Order of Merit of the Federal Republic of Germany Norwegian oncologists {{Norway-med-bio-stub