Sudbury Neutrino Observatory

萨德伯里中微子天文台

• 批准号: 329064-2006
• 负责人: Law, Jimmy
• 金额: $ 0.69万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Subatomic Physics Envelope - Project
• 财政年份: 2008
• 资助国家: 加拿大
• 起止时间: 2008-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=398095
• 关键词: Sudbury; Neutrino; Observatory

The Sudbury Neutrino Observatory (SNO) is a facility, located 2km underground at INCO's Creighton Mine, in Sudbury, Ontario.  The main objectives were to detect the fundamental particles called neutrinos which are copiously emitted in nuclear fusion in the centre of the Sun.  Their detection reveals information both about the conditions of the solar core and the particles themselves.  The collaboration of scientists working at SNO have announced the results for two out of three phases of the experiment, and have verified the solar core temperature is very close to the value predicted by solar models, as well as that neutrinos have mass and can morph from one type into another, whimsically called 'flavour change'.  Results from phase 3, will provide an independent check of the results from the previous 2 phases and tighten the bounds on various parameters.  This will help us understand more about the Universe.  The SNO project is possible is due to Canada being in a unique position of possessing heavy water which is used in the CANDU nuclear reactors, as a moderator.  The heavy water allows us to detect all flavours of neutrinos.

萨德伯里中微子观测站(SNO)是一个设施，位于安大略省萨德伯里Inco克雷顿矿地下2公里处。它的主要目标是探测被称为中微子的基本粒子，这些粒子在太阳中心的核聚变中大量发射。它们的探测揭示了关于太阳核状况和粒子本身的信息。SNO的科学家合作已经宣布了实验三个阶段中的两个阶段的结果，并验证了太阳核心温度非常接近太阳模型的预测值，以及中微子具有质量并可以从一种类型转变为另一种类型，这个奇怪的名字叫“味道变化”。第三阶段的结果将提供对前两个阶段结果的独立检查，并收紧对各种参数的限制。这将帮助我们更多地了解宇宙。SNO项目之所以可能，是因为加拿大处于一个独特的位置，拥有用于CANDU核反应堆的重水，作为慢化剂。因为重水允许我们检测到所有味道的中微子。