In:
Journal of Instrumentation, IOP Publishing, Vol. 16, No. 11 ( 2021-11-01), p. P11040-
Abstract:
Dual-phase noble-gas time projection chambers (TPCs) have
improved the sensitivities for dark matter direct search in past decades. The capability of TPCs to reconstruct 3-D vertexes of keV
scale recoilings is one of the most advantageous features. In this work, we develop two horizontal position reconstruction algorithms
for the PandaX-II dark matter search experiment using the dual-phase liquid xenon TPC. Both algorithms are optimized by the 83 mKr
calibration events and use photon distribution of ionization signals among photomultiplier tubes to infer the positions. According to the
events coming from the gate electrode, the uncertainties in the horizontal positions are 3.4 mm (3.9 mm) in the analytical
(simulation-based) algorithm for an ionization signal with several thousand photon electrons in the center of the TPC.
Type of Medium:
Online Resource
ISSN:
1748-0221
DOI:
10.1088/1748-0221/16/11/P11040
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2021
detail.hit.zdb_id:
2235672-1
