In spite of that, a few years before his death Twiss visited Australia and fell in love with it. In 2004 he applied for permanent residence. He died on 20 May 2005. He is mentioned in the book "Boffin : A Personal Story of the Early Days of Radar, Radio Astronomy and Quantum Optics" , by Hanbury Brown He was awarded the Albert A. Michelson Medal of the Franklin Institute in 1982, jointly with Robert Hanbury Brown. Twiss Parameters In accelerator physics, a method of describing the properties of a beam has become known as Twiss Parameters. While this is a reference to Richard Twiss, it is unclear (including to Twiss himself) how his name became associated with the formulation, as the parameters were developed by Ernest Courant and Hartland Snyder, and are more accurately referred to as the Courant–Snyder parameters. Notes References 20th-century British astronomers Optical physicists 1920 births 2005 deaths British people in colonial India British expatriates in the United States Alumni of the University of Cambridge Massachusetts Institute of Technology alumni