One of the country's leading centres of cancer treatment, Mount Vernon Hospital in Northwood, is about to introduce two new machines which fight the disease.
They're called "linear accelerators" and they allow more patients to be treated with precise doses of radiotherapy.
Liz Wickham reports.
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A lamp in the tower which houses Big Ben is to be switched off for the first time in more than 70 years.
Sir Bruce entertained audiences for more than seven decades.
Work in the tower will also pause over the bank holiday weekend.