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An ATLAS ITK sensor module

The Cambridge group is playing an important role in the upgrade of the ATLAS semiconductor tracker, due for installation between 2022 and 2023. We aim to test around 3,000 sensors for the project, as well as producing and testing around 1,000 of the 6,000 required modules in our facilities at the Cavendish.

The silicon tracker is capable of measuring the tracks from around 700 million collisions every second and is instrumental in disentangling the few interesting collisions from the enormous amount of uninteresting 'background' collisions. In fact, fewer than one in a million collisions are actually recorded to disc.