Jan Kazimierz Danysz
Jan Kazimierz Danysz was a French physicist of Polish extraction. He was an assistant of Maria Skłodowska-Curie and notable in the development of beta spectrometry.
Danysz made considerable advances on the magnetic deflection techniques of, Otto Hahn and Lise Meitner, placing the source in a capillary tube under a slit, with a photographic plate in the same horizontal plane. By this means the known number of lines superimposed on the beta energy spectrum of radium B + radium C went from 9 to 27 lines. He finished his doctoral thesis in 1913, and by 1914 he was considered by Rutherford as a leading researcher into beta decay, but he did no further work. He enlisted in the French army in 1914 and was killed in action near Cormicy during World War I.
Family
- He was the son of biologist Jean Danysz.
- He was the father of physicist Marian Danysz.