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Electron transport measurements in liquid xenon with Xenoscope, a large-scale DARWIN demonstrator

Baudis, L.; Biondi, Y. 1; Bismark, A.; Cimental Chávez, A. P.; Cuenca-García, J. J.; Franchi, J.; Galloway, M.; Girard, F.; Peres, R.; Ramírez García, D.; Sanchez-Lucas, P.; Thieme, K.; Wittweg, C.
1 Institut für Astroteilchenphysik (IAP), Karlsruher Institut für Technologie (KIT)

Abstract:

The DARWIN observatory is a proposed next-generation experiment with 40 tonnes of liquid xenon as an active target in a time projection chamber. To study challenges related to the construction and operation of a multi-tonne scale detector, we have designed and constructed a vertical, full-scale demonstrator for the DARWIN experiment at the University of Zurich. Here, we present the first results from a several-months run with 343kg of xenon and electron drift lifetime and transport measurements with a 53cm tall purity monitor immersed in the cryogenic liquid. After 88days of continuous purification, the electron lifetime reached a value of (664±23)μs. We measured the drift velocity of electrons for electric fields in the range (25–75) V/cm, and found values consistent with previous measurements. We also calculated the longitudinal diffusion constant of the electron cloud in the same field range, and compared with previous data, as well as with predictions from an empirical model.


Verlagsausgabe §
DOI: 10.5445/IR/1000161748
Veröffentlicht am 30.08.2023
Originalveröffentlichung
DOI: 10.1140/epjc/s10052-023-11823-1
Scopus
Zitationen: 3
Web of Science
Zitationen: 3
Dimensions
Zitationen: 3
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 10.08.2023
Sprache Englisch
Identifikator ISSN: 1434-6044, 1434-6052
KITopen-ID: 1000161748
HGF-Programm 51.13.01 (POF IV, LK 01) Neutrinophysik und Dunkle Materie
Erschienen in The European Physical Journal C
Verlag Springer-Verlag
Band 83
Heft 8
Seiten Art.-Nr.: 717
Nachgewiesen in Web of Science
Dimensions
Scopus
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