Novel rheology experiments require detectors that provide highest spatial resolution at highest frame rates. These requirements derive not only from the transitory nature of the investigated phenomena, but also from the uncommon experimental layouts which mandate compact detection systems without cumbersome supports. LAMBDA is ideally suited for this application due to its small form factor and limited supply lines in combination with its unique properties.
Below is an X-ray movie of a computer fan, taken at 1000 frames per second with a GaAs LAMBDA detector. To provide interesting contrast, letters were taped to the fan blades. Thanks to the high sensitivity and zero noise of the LAMBDA GaAs system, the high speed movie shows clear contrast between the fan blades, housing and lettering, despite the short shutter time.
By running a LAMBDA silicon module at 2000 frames per second in front of an X-ray tube, we made a movie of flakes of scrap Indium foil in free fall. In real time, the flakes take only 60 ms to cross the detector – the movie is slowed down by a factor of 67. This high-speed X-ray imaging can be used to study rapid changes in samples.