The first dual-phase xenon TPC equipped with silicon photomultipliers and characterisation with $$^{37}\hbox {Ar}$$ 37Ar

Autor: L. Baudis, Y. Biondi, M. Galloway, F. Girard, S. Hochrein, S. Reichard, P. Sanchez-Lucas, K. Thieme, J. Wulf
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: European Physical Journal C: Particles and Fields, Vol 80, Iss 5, Pp 1-13 (2020)
Druh dokumentu: article
ISSN: 1434-6044
1434-6052
DOI: 10.1140/epjc/s10052-020-8031-6
Popis: Abstract For the first time, a small dual-phase (liquid/gas) xenon time projection chamber was equipped with a top array of silicon photomultipliers for light and charge readout. Here we describe the instrument in detail, as well as the data processing and the event position reconstruction algorithms. We obtain a spatial resolution of $$\sim 1.5\,\text {mm}$$ ∼1.5mm in the horizontal plane. To characterise the detector performance, we show calibration data with internal $$^{83\text {m}}\hbox {Kr}$$ 83mKr and $$^{37}\hbox {Ar}$$ 37Ar sources, and we detail the production of the latter as well as its introduction into the system. We finally compare the observed light and charge yields down to electronic recoil energies of $$2.82\,\text {keV}$$ 2.82keV to predictions based on NEST v2.0.
Databáze: Directory of Open Access Journals
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