Conversation so far:
What was Joseph Rotblat's take on nuclear bombs?
Rotblat felt betrayed by the use of atomic weapons against Japan, and gave a series of public lectures in which he called for a three-year moratorium on all atomic research.
Why did he feel that way?
Rotblat was determined that his research should have only peaceful ends, and so became interested in the medical and biological uses of radiation.
Did he teach his views?
In 1949, he became Professor of Physics at St Bartholomew's Hospital ("Barts"), London.
How long did he teach?
He remained there for the rest of his career, becoming a professor emeritus in 1976.
Did he study anything on nuclear fall out?
Rotblat worked on the effects of radiation on living organisms, especially on ageing and fertility.
This led him to an interest in nuclear fallout.
Did his research help aid in additional research?
His paper was taken up by the media and contributed to the public debate that resulted in the ending of atmospheric tests by the Partial Nuclear Test Ban Treaty.

Question: was there any controversy about his research?
Self-contained rewrite: was there any controversy about Joseph Rotblat's research on nuclear fallout?