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Physik-Institut Group of Laura Baudis

Results with Xurich II and SiPM arrays published in EPJ-C

We have built the first dual-phase xenon TPC (Xurich II) with a SiPM top array.

It provides a good spatial resolution of ~1.5 mm for the horizontal event position reconstruction. This novel detector concept was characterised down to energies of 2.82 keV with internal 37Ar and 83mKr sources. The figure on the right shows the anti-correlation of the obtained charge and light yields at varying drift fields which we also compared with predictions from NEST. Read the full story in Eur. Phys. J. C 80, 477 (2020).