MRI: Acquisition of Cryogenic Coating Elastic Loss Measurement Apparatus to Enhance Gravitational-Wave Observatories

MRI：采购低温涂层弹性损失测量装置以增强引力波观测站

• 批准号: 1920023
• 负责人: Stefan Ballmer
• 金额: $ 11.7万
• 依托单位: Syracuse University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-08-15 至 2022-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1920023&HistoricalAwards=false
• 关键词: MRI; Acquisition; Cryogenic; Coating; Elastic

This award supports research in instrumentation for gravitational wave detectors and it addresses the priority areas of NSF's "Windows on the Universe" Big Idea. NSF's Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO) has firmly established a new era in astronomy - the observation of black hole and neutron star mergers is shedding new light on a broad set of questions in astrophysics, cosmology, fundamental physics, and nuclear physics. Yet the observational range of Advanced LIGO is still limited by thermal noise from the test mass optical coatings. This MRI award covers equipment for testing new, lower thermal noise mirror coatings for current and future gravitational-wave observatories. The equipment will be used by researchers in the LIGO Scientific Collaboration's Center of Coatings Research. The Center for Coatings Research, funded jointly by the NSF and the Gordon and Betty Moore Foundation, has the specific goal to develop better coatings for gravitational-wave detectors. The equipment is also available for minority graduate students supported through the NSF's PAARE program.The award specifically funds the purchase and construction of a multi-temperature, multi-frequency cryogenic elastic loss measurement apparatus, to be installed at Syracuse University. The apparatus consists of a PT 407 Cyrostat and attached sample chamber. It is specifically designed to revolutionize testing of optical coatings materials. The apparatus permits rapid-turnaround measurement of the elastic loss of the new coating samples, which drives the thermal noise in gravitational-wave detector mirror coatings.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该奖项支持引力探测器的仪器研究研究，并介绍了NSF“宇宙上的窗户”的优先领域。 NSF的高级激光干涉仪重力波天文台（LIGO）牢固地建立了一个新时代的天文学时代 - 对黑洞和中子星星合并的观察正在为天体物理学，宇宙学，基本物理学和核物理学方面的一系列问题提供新的启示。然而，晚期LIGO的观察范围仍然受到测试质量光学涂层的热噪声的限制。该MRI奖涵盖了用于测试新的，较低的热噪声镜涂层的设备，用于当前和未来的重力波观测站。 Ligo Scientific合作研究中心研究中心研究人员将使用该设备。由NSF和Gordon和Betty Moore基金会共同资助的涂料研究中心的具体目标是为重力波检测器开发更好的涂料。该设备还可以为通过NSF的PAARE计划提供支持的少数族裔研究生。该奖项专门为要在锡拉库塞斯大学安装的多型，多频性低频弹性损失测量设备提供了购买和建设。该设备由PT 407的墨染色器和附着的样品室组成。它是专门设计的，用于彻底改变光学涂料材料的测试。该设备允许对新涂料样品的弹性损失进行快速转移测量，该涂层损失驱动了引力波检测器镜面涂层中的热噪声。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛影响的审查标准来通过评估来支持的。