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: $ 5.54万
• 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: 2006
• 资助国家: 加拿大
• 起止时间: 2006-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=340774
• 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（Sudbury Neutrino Observatory，SNO）是位于萨德伯里的INCO Creighton矿地下2公里处的一个设施，安大略。主要目的是探测太阳中心核聚变时大量释放的基本粒子中微子。中微子的探测揭示了太阳核心状况和粒子本身的信息。在SNO工作的科学家们合作，宣布了实验三个阶段中两个阶段的结果，并证实了太阳核心温度非常接近太阳模型预测的值，以及中微子具有质量，可以从一种类型转变为另一种类型，异想天开地称为“变味”。第三阶段的结果，将提供对前两个阶段结果的独立检查，并收紧各种参数的界限。这将有助于我们更多地了解宇宙。SNO项目是这可能是由于加拿大拥有重水的独特地位，重水用于CANDU核反应堆，作为减速剂。重水使我们能够探测到中微子的所有味道。