Solar Neutrinos

太阳中微子

• 批准号: 0802114
• 负责人: ROBERT VOGELAAR
• 金额: $ 97.2万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-08-01 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0802114&HistoricalAwards=false
• 关键词: Solar; Neutrinos

PROPOSAL NUMBER: 0802114INSTITUTION: VA Polytechnic Inst & St U NSF PROGRAM: PHY - NUCLEAR ASTROPHYSICSPRINCIPAL INVESTIGATOR: Vogelaar, Robert B.TITLE: Solar Neutrinos ABSTRACTThis award provides funding for the Virginia Tech group to continue their participation in the Borexino experiment at the Gran Sasso underground lab in Italy. Experiments with solar neutrinos gave the first evidence for neutrino mass and mixing. The Borexino experiment has recently made the first real-time measurement of the flux of low energy solar neutrinos from 7Be. The result is consistent with predictions of Standard Solar Models and neutrino oscillations. The group plans to address the full utilization of the calibration system, participation in data acquisition and analysis, and the implications of anticipated Borexino results. With better purity and calibration now achieved, the potential for measuring the CNO and pep solar neutrino fluxes in Borexino is now realistic. The broader impact on science, technology and outreach that is expected from the program includes deployment and utilization of ultra-clean calibration techniques and creating the possibility that, for the first time, one might directly measure the Sun?s energy generation today, versus what is currently seen in the photosphere after a delay of about 50,000 years. The outreach is to astrophysicists, cosmologists, geophysicists and geochemists, chemists and chemical engineers, teachers and students in universities in Virginia and neighboring states and the international scientific community.

提案编号：0802114机构：VA Polytechnic Inst St U NSF研究所：物理-核天体物理学研究员：Vogelaar，Robert B.标题：太阳中微子 这个奖项为弗吉尼亚理工大学的研究小组提供资金，使他们能够继续参与意大利格兰萨索地下实验室的Borexino实验。太阳中微子实验首次给出了中微子质量和混合的证据。Borexino实验最近首次实时测量了来自7 Be的低能太阳中微子通量。这一结果与标准太阳模型和中微子振荡的预测相一致。该小组计划解决校准系统的充分利用，参与数据采集和分析，以及预期Borexino结果的影响。随着更好的纯度和校准，现在实现了测量Borexino中的CNO和PEP太阳中微子通量的可能性。预计该计划对科学、技术和推广的更广泛影响包括部署和利用超净校准技术，并创造了第一次直接测量太阳的可能性。与目前在光球层中看到的延迟约50，000年后的能量产生相比。这项活动的对象是天体物理学家、宇宙学家、地球物理学家和地球化学家、化学家和化学工程师、弗吉尼亚州和邻近各州大学的教师和学生以及国际科学界。