A laserball calibration device for the SNO+ scintillator phase

A laserball calibration device for the SNO+ scintillator phase
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SNO闪烁体相位激光球校准装置

DOI:
10.1088/1748-0221/19/01/t01005
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发表时间:
2024
影响因子:
1.3
通讯作者:
Valder S
Valder S
中科院分区:
工程技术4区
文献类型:
--
作者:
Valder S

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相似文献

SNO+位于加拿大萨德伯里SNOLAB地下2公里处,是一个大型液体闪烁体实验,主要目的是寻找无中微子双β衰变。虽然SNO+在内部体积外部具有光和放射性校准源,但内部部署的光源对于探测器模型的完整表征是必要的。为SNO开发的激光扩散球先前已被证明是SNO和SNO+水相的有效光学校准装置。自引入SNO+液体闪烁体以来,与内部介质接触的任何材料的材料相容性、清洁度和放射性纯度要求都有所提高。改进的原始SNO激光球设计,一个新的激光球校准装置已开发的SNO+闪烁体阶段的目标是测量探测器的光学特性和执行常规PMT增益和定时校准。已经编写了模拟来对扩散特性进行建模,以优化用于校准的光学和时间性能。原型激光球已建成和特点,演示亚纳秒的时间分辨率和准各向同性的光分布。
Located 2 km underground in SNOLAB, Sudbury, Canada, SNO+ is a large scale liquid scintillator experiment that primarily aims to search for neutrinoless double beta decay. Whilst SNO+ has light and radioactive calibration sources external to the inner volume, an internally deployed optical source is necessary for the full characterization of the detector model. A laser diffuser ball developed for SNO has previously demonstrated to be an effective optical calibration device for both SNO and SNO+ water phase. Since the introduction of liquid scintillator for SNO+, the material compatibility, cleanliness, and radiopurity requirements of any materials in contact with the internal medium have increased. Improving on the original SNO laserball design, a new laserball calibration device has been developed for the SNO+ scintillator phase with the goal of measuring the optical properties of the detector and performing routine PMT gain and timing calibrations. Simulations have been written to model the diffusion properties to optimise optical and temporal performance for calibration. Prototype laserballs have been built and characterised, demonstrating sub-ns timing resolution and a quasi-isotropic light distribution.
萨德伯里中微子天文台的光学校准
DOI: --
发表时间: 2001
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具有 SNO 的无中微子双贝塔衰变
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J. Hartnell
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DOI: 10.1088/1748-0221/16/05/p05009
发表时间: 2021-05-01
影响因子: 1.3
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Anderson, M. R.;Andringa, S.;Zummo, A.
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Alves R
通讯作者: Alves R
SNO 实验的质量保证测试和敏感性研究
DOI: --
发表时间: 2018
期刊:
影响因子: --
作者:
D. J. Bartlett
通讯作者: D. J. Bartlett