Using multiple shots per pixel and a composite image technique to extend dynamic range of imaging with the Vitesse

Whilst it is generally acknowledged that time of flight ICP-MS is the fastest technique to obtain multi-element images using laser ablation, it is also thought that this must come at the cost of poor dynamic range for the concentrations that can be measured in the image. Modern laser ablation systems are capable of laser repetition rates between 200Hz and 1kHz for excimer lasers, and faster still for femtosecond lasers. The image’s optical resolution limit is, however, generally defined by the washout of a single shot from the laser which is typically matrix dependant and between <1ms to 5ms for the latest sample cell designs. This means that imaging is theoretically possible at up to 1000 pixels per second if one laser shot is mapped to each pixel.

Download this application note to learn how the Vitesse TOF-ICP-MS can extend its dynamic range for imaging by using multiple shots per pixel and a composite image technique.

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