CheeTah T3

Ultrafast TEM instruments based on laser-driven stroboscopic sources or ultrafast beam blanker concepts allow to the study of effects in the femto- and atto-second range. These experiments require multiple repetitions to obtain statistical relevant data. The time resolution of CheeTah T3 detectors allow repetition rates in the megahertz range.

Electron diffraction has been extremely useful to determine structures and properties of nanomaterials. CheeTah T3 detectors have the capability to study time-dependent effects in materials such as phase transition in the nano to microsecond range.

The precise timing information of electron hits on the detector can be used to reconstruct the entry point of electrons on the detector, allowing to achieve super-resolution in TEM imaging mode. Cheetah T3 offers the best of both worlds: the resolution of a multi-megapixel camera combined with the speed and sensitivity of advanced hybrid pixel detectors.

Hybrid pixel detectors provide fundamental benefits for advanced 4D-STEM applications which can be used to study material properties and perform high-resolution electron ptychography. For several samples, conventional dose through dwell times in the millisecond range can damage the lead to sample damage.

With all CheeTah T3 detectors, the dwell time can be dramatically reduced down to nanoseconds, reducing beam damage and enabling the study of beam-induced effects with high time resolution.