Angela Helen Clayton MBE (1959 – 8 January 2014[1]) was an internationally known physicist working in the fields of Nuclear Criticality Safety and Health Physics.

She was interested in the subjects of criticality safety and Radiological Protection - Health Physics.

Clayton was also active in national and local Prospect trade union activities, including serving on the pension National Executive Committee (NEC) Advisory Sub Committee[4] and was an elected trustee of the AWE Pension Scheme from 1 February 2009 - 1 February 2011.

[5][6][7] After her early retirement in March 2011 on medical grounds due to complications from an old automobile accident in 1996, she pursued various artistic and intellectual activities including acquiring a large telescope with which she could engage in a lifelong love of astronomy.

[8] She was appointed a Member of the Order of the British Empire (MBE) in June 2005 "for services to gender issues".