利用 Na-22 源数据和模拟对 DEAP-3600 探测器的能量校准进行研究

IF 1.3 4区工程技术 Q3 INSTRUMENTS & INSTRUMENTATION

Journal of Instrumentation Pub Date : 2024-05-01 DOI:10.1088/1748-0221/19/05/c05030

L. Luzzi

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引用次数: 0

摘要

DEAP-3600 是一个单相液态氩（LAr）直接探测暗物质实验，在 SNOLAB（加拿大萨德伯里）地下 2 公里处运行。探测器由 3.3 吨 LAr 组成，装在一个球形丙烯酸容器中。在 WIMP 质量为 100 GeV 时，DEAP-3600 对 WIMP 的自旋无关弹性散射截面的灵敏度预计为 10-46 平方厘米。放射性源被用于能量校准和探测器性能测试。其中一次最有效的校准运行是在 DEAP-3600 钢壳周围的一个管子中使用 22Na 源进行的。该源同时发射的三个 γ 为 22Na 衰变提供了极好的标记。本研究调查了探测器的能量响应结果以及 DEAP-3600 中数据与蒙特卡罗模拟之间的一致性。

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Study of the energy calibration of the DEAP-3600 detector using Na-22 source data and simulations

DEAP-3600 is a single-phase liquid argon (LAr) direct-detection dark matter experiment, operating 2 km underground at SNOLAB (Sudbury, Canada). The detector consists of 3.3 tons of LAr contained in a spherical acrylic vessel. At WIMP mass of 100 GeV, DEAP-3600 has a projected sensitivity of 10-46 cm2 for the spin independent elastic scattering cross section of WIMPs. Radioactive sources have been used for the energy calibration and to test the detector performance. One of the most effective calibration run has been taken with a 22Na source deployed in a tube located around the DEAP-3600 steel shell. The simultaneous emission of three γs by the source provides an excellent tagging for the 22Na decay. The results concerning the energy response of the detector and the agreement between data and Monte Carlo simulations in DEAP-3600 are investigated in this study.

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来源期刊

Journal of Instrumentation 工程技术-仪器仪表

CiteScore

2.40

自引率

15.40%

发文量

827

审稿时长

7.5 months

期刊介绍： Journal of Instrumentation (JINST) covers major areas related to concepts and instrumentation in detector physics, accelerator science and associated experimental methods and techniques, theory, modelling and simulations. The main subject areas include. -Accelerators: concepts, modelling, simulations and sources- Instrumentation and hardware for accelerators: particles, synchrotron radiation, neutrons- Detector physics: concepts, processes, methods, modelling and simulations- Detectors, apparatus and methods for particle, astroparticle, nuclear, atomic, and molecular physics- Instrumentation and methods for plasma research- Methods and apparatus for astronomy and astrophysics- Detectors, methods and apparatus for biomedical applications, life sciences and material research- Instrumentation and techniques for medical imaging, diagnostics and therapy- Instrumentation and techniques for dosimetry, monitoring and radiation damage- Detectors, instrumentation and methods for non-destructive tests (NDT)- Detector readout concepts, electronics and data acquisition methods- Algorithms, software and data reduction methods- Materials and associated technologies, etc.- Engineering and technical issues. JINST also includes a section dedicated to technical reports and instrumentation theses.