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Updated: Feb 23, 2026
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Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident
Published on: December 14, 2017
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Report on the accident at Windscale No. 1 Pile on 10 October 1957
William Penney1, Basil F J Schonland, J M Kay
1Director, Atomic Weapons Research Establishment, Aldermaston, United Kingdom. Member of the Committee of Inquiry.
Summary
A 1957 nuclear reactor fire at Windscale Works released radioactive material. A Committee of Inquiry investigated the serious nuclear accident, with its report forming the basis for a government White Paper.
Area of Science:
- Nuclear Engineering
- Environmental Science
- Accident Investigation
Background:
- The Windscale Works nuclear reactor in northwest England experienced a severe fire.
- This incident occurred on October 10-11, 1957, leading to significant radioactive material release.
Observation:
- A Committee of Inquiry, chaired by Sir William Penney, was established by the United Kingdom Atomic Energy Authority (UKAEA).
- The committee conducted its investigation at Windscale Works from October 17-25, interviewing 37 individuals and examining 73 technical exhibits.
Findings:
- The committee's report was submitted on October 26, 1957, providing a technical basis for a UK Government White Paper (Cmnd. 302).
- The Penney Report itself remained unpublished until January 1988, when it was made public.
Implications:
- The investigation aimed to understand the causes and consequences of the Windscale nuclear accident.
- The findings informed government policy and contributed to the understanding of nuclear safety protocols.
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