Qualla: Windscale Fire

Windscale Fire: Introduction

Thu, 28 May 2026 00:00:00 GMT

Tom Tuohy climbed an eighty-foot ladder in full breathing apparatus, opened the inspection hatch and looked down into the reactor's discharge face. Red-hot fuel cartridges were glowing in the channels. By 20:00 on 10 October 1957, yellow flames were visible at the back of Pile No. 1; by 20:30 the flames had turned blue, which meant graphite was burning. He went back to the top of that reactor several times during the next two days. Each visit exposed him to radiation no one fully measured. Tuohy was the deputy general manager at Windscale. He died in 2008, never publicly recognised for what he did. The board of inquiry called the response "prompt and efficient" and noted the "considerable devotion to duty" of the men involved.

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Windscale Fire: Why It Was Burning

Thu, 28 May 2026 00:00:00 GMT

The Windscale Piles produced weapons-grade plutonium for Britain's atomic bomb programme. Pile No. 1 went critical in October 1950; Pile No. 2 followed in June 1951. They were air-cooled, graphite-moderated reactors built fast under the pressure of the Cold War. The British had l...

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Windscale Fire: The Three Days

Thu, 28 May 2026 00:00:00 GMT

Channel 20/53 began behaving oddly during that ninth anneal. The temperature there rose while others fell. On 8 October, a second nuclear heating was applied to coax the release across the core - too soon and too rapidly, the inquiry later concluded. By the early morning of 10 Oc...

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Windscale Fire: Cockcroft's Folly

Thu, 28 May 2026 00:00:00 GMT

When the Pile chimneys were being built in the late 1940s, physicist Terence Price had warned that burst fuel cartridges could release uranium oxide dust up the chimneys and into the air. He suggested filters. His concerns were dismissed and not even recorded in the meeting minut...

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Windscale Fire: Milk and Silence

Thu, 28 May 2026 00:00:00 GMT

The reactor released approximately 740 terabecquerels of iodine-131, 22 TBq of caesium-137, 12,000 TBq of xenon-133, and about 8.8 TBq of polonium-210 - the polonium being a particularly dangerous, highly radioactive alpha-emitter whose release was covered up at the time. The rad...

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