The complexity of designing, developing and operating a Proton Therapy cancer center.

This TV production by BBC highlights the complexity of designing, developing and operating a Proton Therapy cancer center.

Proton beam therapy is the one of the most technologically advanced though expensive cancer treatments in the world – but it has the potential to save the lives of children with otherwise incurable cancers.

Over two years, Horizon follows the engineers, scientists and medics as they race to build two new centres.

At the cutting edge of particle physics, proton beam therapy involves splitting hydrogen atoms to create a beam of protons travelling at two-thirds the speed of light, which target tumours with millimetre precision. But doing this in the heart of two of our biggest cities is no easy feat. The process generates so much radiation it needs to be housed in a maze-like nuclear bunker, with walls four metres thick. 2,000 tonnes of precision instruments are installed – more than four jumbo jets worth – and it all has to work perfectly.

This special BBC Two programme goes behind the scenes on the £250 million cancer cure – from digging the big and wide hole to the treatment of the first patients.

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