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 seaside resort city and municipality in Agder county, Norway. The city is the fifth-largest and the municipality the sixth-largest in Norway, with a population of around 112,000 as of January 2020, following the incorporation ...

. 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 accelerated electrons as a source of illumination. As the wavelength of an electron can be up to 100,000 times shorter than that of visible light photons, electron microscopes have a hi ...

. He has served as manager of the

Norwegian Radium Hospital Oslo University Hospital, Radiumhospitalet ( no, Oslo universitetssykehus, 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 specia ...

. He was decorated Commander of the Order of St. Olav in 1994. He is a fellow of the

Norwegian Academy of Technological Sciences The Norwegian Academy of Technological Sciences ( no, Norges Tekniske Vitenskapsakademi, 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 Aca ...

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-bio-stub