Ian Chapman (physicist)

Sir Ian Trevelyan Chapman FREng FRS is a British physicist who is the chief executive of the United Kingdom Atomic Energy Authority (UKAEA).

[5] Chapman then joined UKAEA's Culham laboratory as a plasma physics PhD student with Imperial College London.

His research focused on understanding and controlling instabilities in the plasma fuel within tokamak fusion devices.

In October 2016 he became UKAEA's Chief Executive Officer, succeeding Sir Steven Cowley.

In April 2024, Chapman was appointed as non-executive director of the UK research funding agency, UKRI.