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Figure 4
Benchmarking of the spectrometer chip. (a) THz spectra for different charges between 2.5 and 82 pC. Error bars determined from the noise band with absent signal are also given. The spectrometer chip is able to detect single THz pulses down to 2.5 pC with sufficient dynamic range. (b) Comparison of the THz spectra for a bunch charge of 82 pC as determined by the THz spectrometer chip (purple solid) and by THz TDS (dashed). (c) Charge dependence of the intensity as detected with the 0.2 and 0.3 THz element.

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