It is with deep sorrow we have heard that Philip Coppens passed away on 21-Jun-2017 (age 86).
Philip Coppens was born in Amersfoort and did his PhD at the University of Amsterdam. After appointments at the Weizmann Institute and the Brookhaven National Laboratory he spend most of his career in Buffalo. In 2005 he received the Ewald prize of the IUCr.
The following links give more info on Philip Coppens and his work: