
In the 1980s Paul's research interest turned to the processing of materials using RF plasmas and, in particular, to the diagnostics employed for monitoring the plasma environment. He help organize an IEE Summer School at Liverpool in 1986 on Plasma Processing. With colleagues from universities and industry he worked on Langmuir probe and mass-spectrometric studies of plasmas, and even in January 1991 he gave a seminar at an IOP meeting. His last publication, a textbook entitled "EMC: Electromagnetic Theory the Practical Design", co-authored by M. A. Houlden, was published in December 1991.
Throughout his carrier, Paul maintained a passionate involvement with physics in vacuum. His particular interest centered on the problem of how to insulate high voltages, and in this context he published many widely cited scientific papers dealing with the fundamental aspects of electron emission and microparticle phenomena. He was a contributor to the First ISDEIV in 1964 at MIT. He had been a member of the Permanent International Scientific Committee since 1970 and served as his Chairman for the period 1980-1986. Without doubt, the sustained energy and infectious enthusiasm of Paul chatterton played a very large part in the growing success of ISDEIV. This commitment was never more clearly demonstrated in his selfless support of the early Symposia held in Paris (1968), Waterloo (1970), and Swansea (1974).
Paul held strong views on the role of the professional scientist / engineer
in modern society. He was an active member of several professional
institutions. He was a Fellow of the Institute of Physics and served on
its Plasma Physics Committee. He was also a Fellow of the Institution of
the Institute of Electrical Engineers and served as a member, and later
as Chairman of its professional group S3 ("Ionized Gases and Vacuum").
He was also a Senior Member of IEEE.
The Chatterton Young Investigator Award is established by the
International Symposium on Discharges and Electrical Insulation in Vacuum
(ISDEIV) in honor of the late Paul Chatterton.