Tikvah Alper

Tikvah Alper (22 January 1909 – 2 February 1995) trained as a physicist and became a distinguished radiobiologist. Among many other initiatives and discoveries, she was among the first to find evidence indicating that the infectious agent in scrapie does not contain nucleic acid: a finding that was instrumental in understanding the development of the prion theory. She was director of the MRC Experimental Radiopathology Unit, Hammersmith Hospital, London, UK, 1962–1974. Provided by Wikipedia