The Dunster Lecture Series was launched by the Society in 2011 to honour the memory of John Dunster.

2019 - Dr Claire Cousins: Forward Through the Rearview Mirror: Reflections on 10 years as ICRP Chair

Dr. Cousins studied medicine at the University of Nottingham, UK and graduated with a Bachelor of Medical Sciences, 1st Class in 1982 and Bachelor of Medicine and Bachelor of Surgery with Distinction in Paediatrics in 1984. She trained in radiology in Nottingham and at the Hammersmith Hospital, London, specialising in interventional radiology. After six years as a Consultant at the Hammersmith, she moved to Addenbrooke’s Hospital, Cambridge, in 1999. From 2008, she was the Lead Vascular and Interventional Radiologist of this very busy unit, retiring in March 2016.

Dr. Cousins joined ICRP in 2001. She was appointed Chairwoman of this Committee from 2006-2009, was elected Chair of the Main Commission in 2009 and re-elected Chair in both 2013 and 2017.

Dr. Cousins was a member of the British Institute of Radiology Radiation Protection Committee from 2006-2015, being Secretary of this Committee from 2011. She was the Programme Director for Radiology Training in Cambridge from 2001-2005. She was a member of the Clinical Senate for East of England, acting as an expert adviser, and also the lead interventional radiologist for Specialist Commissioning in the region. Dr. Cousins still acts as an expert for health service provision in different regions of the UK and remains a reviewer for radiology journals. 

2019 - Claire Cousins from Harris Associates on Vimeo.

2018 - Roger Clarke CBE: The Evolution of the Recommendations of ICRP since 1928


Roger Clarke began his research career in Reactor Physics in 1965 working for the Central Electricity Generating Board, transferring in 1969 to Health Physics where he worked for Bernard Wheatley (a former SRP President and first Editor of JRP).  He moved to the National Radiological Protection Board in 1978, succeeding John Dunster as its Director from 1987 until 2003.  Roger is an Emeritus member of the International Commission on Radiological Protection, having been its Chair from 1993 to 2005.  He has been the UK representative to UNSCEAR, a member of the Article 31 Group of Experts for the European Commission, Chair of the NEA Committee on Radiation Protection and Public Health (CRPPH) and a member of several UK Advisory Committees.

Dunster Lecture 2018 from Harris Associates on Vimeo.


2017 - Richard Wakeford: What do we know about low-level radiation risks?

Richard Wakeford has been Editor of the Journal of Radiological Protection since 1997 and is an SRP Honorary Fellow. He received BSc and PhD degrees from the University of Liverpool and then joined British Nuclear Fuels Ltd (BNFL).  Richard took early retirement from BNFL in 2006 and is now Professor in Epidemiology at the University of Manchester.  He is a member of a number of national and international expert committees, including Committee 1 of ICRP and the UK delegation to UNSCEAR.


2016 - Pete Burgess: 'RP in 50 Years - Very Fallible Predictions'

Pete Burgess started work in the Health Physics Instruments Group of NRPB in 1975. He moved from there to UKAEA in 2002, mostly because it was a great opportunity to broaden the area of work. He stayed there for 4 years, happily helping people at Dounreay, Harwell and Winfrith demolish the sites efficiently while staying within the legal obligations. He then moved to NPL, which was very different. His main influence at NPL was to encourage the staff to look at the point of application of the standards and to consider how best they could help those at the point of application. After 2 years, he moved to Nuvia, for the first time working for a genuinely commercial organisation. That in itself was a major challenge but it led to an involvement in the heavier engineering aspects of dealing with ionising radiation. It is interesting how different engineers and scientists views can be. Then he was tempted away by a very good offer into private consultancy, which has given tremendous freedom.

This breadth of work, and the range of organisations worked with – SRP, AURPO, IAEA, HSE, EA, NII, ONR, BNFL, AWE, universities and a whole host of commercial companies, particularly the wonderful Mini Instruments Ltd – has been great fun. But even more it’s been the people. 

2015 - Roger Coates: 'A Journey Towards Radiation Protection Culture.'


Roger Coates is an Honorary Fellow and former President of the Society. He worked for 30 years in the nuclear industry with BNFL, with responsibilities encompassing radiation protection, nuclear safety, conventional safety and environmental issues, retiring as Director of Environment, Health and Safety. He then spent 18 months with IAEA in Vienna.

Roger has extensive radiological protection experience across the whole field of operations, environment and the underpinning standards and science. He was a Member of the ICRP Task Group on Occupational Exposure and a co-author of the resulting ICRP Publication 75.  He was the Founder Chairman of the World Nuclear Association’s Radiological Protection Working Group.

Roger is spending a very active semi-retirement. He is President of the International Radiation Protection Association and was Congress President for the IRPA13 Glasgow Congress in 2012. He is also a Non-Executive Director of LLW Repository Ltd, as well as being adviser to several UK nuclear organisations He is involved with IAEA as a consultant on the Iraq Decommissioning Project and the Nuclear Law Institute.

2014 - John Croft: 'ALARA, RP Culutre and More: Joining-up the Dots and the People'

John Croft is an Honorary Fellow and a former president of SRP. For his entire career he worked for the National Radiological Protection Board (NRPB); its predecessor, the Radiological Protection Service and its successor, the Health Protection Agency (HPA). He has experience of many aspects of radiation protection, including RPA work, the development of national and international standards, the safety and security of radioactive sources, together with emergency preparedness and response. Of particular relevance to his presentation he was heavily involved over several decades with the development, understanding and practical implementation of ALARA.

He has acted as consultant to a number of international organisations including, the European Commission, the World Health Organisation (WHO), the International Atomic Energy Agency (IAEA) and the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR). He has led a number of IAEA missions to investigate major radiation accidents in Brazil, El Salvador, Belarus, Israel and Bolivia.

When, in 2003, NRPB became part of the newly formed HPA, he became the Head of Emergency Response, with the responsibility to develop coherent emergency response arrangements that covered not just radiological incidents, but all public health emergencies; including CBRN attacks, chemical incidents and infectious diseases outbreaks. He was heavily involved in the response to the London Polonium Incident in 2006. He retired from HPA in 2007, but continues to be active in work for SRP.

2013 - Roger Cox: 'Scientific Support to the Central Estimates of Low Dose Radiation Risk: Notable Developments 1990-2010'

Roger Cox is a former Director of PHE’s Centre for Radiation, Chemical and Environmental Hazards and a member of the Board where his responsibilities included dealing with emergencies such as the fire at the Buncefield Oil Refinery and the aftermath of the death of Alexander Litvinenko in London from Polonium-210 poisoning.  He has also been Vice Chair of the ICRP Main Commission (2005-2009) and Chairman of ICRP Committee 1 on Radiation Effects.  He is a former Head of the UK Delegation to the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) and an Honorary Fellow of SRP.

2012 - Peter Marsden: 'The Importance of Radiation to the Medical Profession.'

Peter Marsden is a Medical Physicist with many years experience working in the NHS in the field of Radiation Protection. He is currently Head of Medical Physics at University College Hospital in London. Peter represents the South East of England on the Small Users Liaison Group and is also a member of COMARE, the DH advisory Committee on Medical Aspects of Radiation in the Environment, and the National Dose Assessment Working Group.

2011 (Recorded in 2013) - Jack Valentin

Jack Valentin obtained his PhD in genetics from the University of Stockholm. In 1983, he joined the Swedish Radiation Protection Authority, rising to Deputy Director supervising nuclear installations. From 1997 until his retirement at the end of 2008, he was the Scientific Secretary of ICRP. A former IRPA Executive Council member, Jack has had assignments for UNSCEAR, IAEA and OECD/NEA and was Chairman of the Programme Committee for the IRPA14 World Congress in South Africa.  He is extremely proud to be an Honorary Fellow of SRP and to have been the Society’s inaugural John Dunster lecturer in 2011.

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