2017
DOI: 10.1088/1748-0221/12/12/t12004
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CALIS—A CALibration Insertion System for the DarkSide-50 dark matter search experiment

Abstract: This paper describes the design, fabrication, commissioning and use of a CALibration source Insertion System (CALIS) in the DarkSide-50 direct dark matter search experiment. CALIS deploys radioactive sources into the liquid scintillator veto to characterize the detector response and detection efficiency of the DarkSide-50 Liquid Argon Time Projection Chamber, and the surrounding 30 t organic liquid scintillator neutron veto. It was commissioned in September 2014 and has been used successfully in several gamm… Show more

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Cited by 20 publications
(24 citation statements)
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“…Radioactive calibration sources for the characterization of the TPC and LSV are deployed through the WCV and LSV to the side of the cryostat using an articulated arm described in Ref. [8].…”
Section: The Darkside-50 Detectorsmentioning
confidence: 99%
“…Radioactive calibration sources for the characterization of the TPC and LSV are deployed through the WCV and LSV to the side of the cryostat using an articulated arm described in Ref. [8].…”
Section: The Darkside-50 Detectorsmentioning
confidence: 99%
“…A calibration campaign, following the first dark matter search, was started with the aim to perform a characterization of the detector response, a detection efficiency and an energy calibration for both TPC and LSV. To this purpose, a dedicated calibration hardware was installed in the DS-50 detector, allowing for the placement of several gamma ( 57 Co, 133 Ba, 137 Cs, 22 Na) and neutron sources (AmBe, AmC) in the LSV next to the TPC cryostat [18]. Data acquisition showed an impressive stability reaching a trigger efficiency of ∼90% during the atmospheric argon campaign and up to 95% with the TPC filled with the UAr.…”
Section: Darkside-50 Stability and Performancesmentioning
confidence: 99%
“…In addition to modeling energy deposits and optics, the DarkSide-50 electronics may also be simulated, allowing for analysis of the full reconstruction chain [48]. Comparison between the S1 spectrum in the TPC from calibration with 57 Co and that produced by g4ds simulation [49]. Excellent agreement has been achieved for both single and multiple pulse events.…”
Section: Outer Detector Event Reconstructionmentioning
confidence: 99%
“…The goal of this calibration was to obtain a high statistics set of β + Figure 4.10: The 39m Kr peak, along with the 39 Ar background spectrum. Noted are the locations of the full absorption peaks of 57 Co, 133 Ba and 137 Co. [49] events for studying pulse shape discrimination in the TPC.…”
Section: August 2015mentioning
confidence: 99%
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