Ranjan Roy Daniel (also referred to as R. R. Daniel or Rajan Roy) (11 August 1923 – 27 March 2005) was an Indian Nagercoil born physicist who worked in the fields of cosmic rays and space physics,[1] and remained Director Chairman of Tata Institute of Fundamental Research.
[2] Under the influence of the Indian Nobel laureate Chandrasekhara Venkata Raman he was advised to pursue the next phase of his education at Banaras Hindu University, from which he received MSc (Physics) degree in 1946.
[6] From there he was sponsored by the Indian government to carry out research studies in the UK at the University of Bristol in 1951.
He carried out research in the H. H. Wills Physics Laboratory, headed by the Nobel laureate C. F. Powell, using nuclear emulsions exposed to cosmic rays at high altitudes.
He is survived by 4 children (Lalitha, Ravindran, Amudha and Renjitha) and several grandchildren, all of whom live in the USA and India.