CMI team members

December 2023

Andrey Yachmenev, Amit Samanta, Ivo Vinklárek, Jingxuan He, Mukhtar Singh, Nidin Vadassery, Hubertus Bromberger, Wuwei Jin, Barbora Vagovič, Matthew Robinson, Kevin Janson, Lukas Haas, Emil Vogt, Álvaro Fernández-Corral, Sofiane Hannachi, Karol Długołęcki, Sebastian Trippel, Andrey Samartsev, Nayab Majid Chaudhry
(taking the photo) Jochen Küpper
(not present) Luisa Blum, Armando Estillore, Onne Grabbert, Stefanie Lenzen, Sumukh Venkatesh Makam, Pedram Mazhar, Surya Peravali, Hossein Saberiansani, Yahya Saleh, Saran Sai Kiran Vanapalli

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Timepix3: single-pixel multi-hit energy-measurement behaviour

13 November 2024

The event-driven hybrid-pixel detector readout chip, Timepix3, has the ability to simultaneously measure the time of an event on the nanosecond timescale and the energy deposited in the sensor. However, the behaviour of the system when two events are recorded in quick succession of each other on the same pixel was not studied in detail previously. We present experimental measurements, circuit simulations, and an empirical model for the impact of a preceding event on this energy measurements, which can result in a loss as high as 70%. Accounting for this effect enables more precise compensation, particularly for phenomena like timewalk. This results in significant improvements in time resolution — in the best case, multiple tens of nanoseconds — when two events happen in rapid succession.

Keynote lecture at Sino-German Physics Conference

20 October 2024

Jochen presented a keynote lecture on CMI research at the 33rd Annual Meeting of the Chinese Society of Physicists in Germany (GCPD) in Jinan, Shadong, China. The lecture was well attained locally and, according to the organizers, followed by more than 10,000 people in the koushare online stream.

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Prof. Dr. Jochen Küpper FRSC

Barbora Vagovič

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