A study of transient noise sources in LIGO

LIGO瞬态噪声源研究

• 批准号: 0071316
• 负责人: Joseph Giaime
• 金额: $ 61.8万
• 依托单位: Louisiana State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-08-01 至 2005-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0071316&HistoricalAwards=false
• 关键词: study; transient; noise; sources; LIGO

A recently appointed Assistant Professor at Louisiana University (LSU) and Principal Investigator of this award, together with two senior faculty members, is leading a new research effort with the Laser Interferometer Gravitational-Wave Observatory (LIGO). LIGO is designed to be the world's most sensitive detector for gravitational radiation and is just coming into operation. LIGO is located at two widely separated sites, one in Livingston Louisiana, the other in Hanford Washington. The Livingston site is located about 35 miles from the LSU campus. This group intends to use the close proximity of the Livingston site to the LSU campus to develop diagnostic tools necessary to improve and sustain of the sensitivity of LIGO.The project will be directed along three lines of investigation:The on-line diagnostics of the LIGO interferometers at Livingston. This group will use LIGO's global diagnostic system as LIGO is brought into operation in order to gain an intimate knowledge of the LIGO detector components. The goal of the group is to gain the information about the behavior of LIGO that will enable LIGO to be used as a reliable instrument.Transient noise identification. LIGO' performance is limited by stray signals, or noise, that either hide or mimic a gravitational wave signal from astrophysical sources. The investigators will build a facility to measure the transient noise originating from various of the mechanical components of LIGO.Advanced LIGO seismic isolation system. The group will test prototypes of the seismic isolation systems being developed for the next generation of LIGO detectors. The group will involve undergraduates and graduate students in the research, both at Louisiana State University campus and at the LIGO site.

路易斯安那大学（LSU）最近任命的助理教授和该奖项的首席研究员，以及两名高级教师，正在领导一项新的研究工作与激光干涉仪引力波天文台（LIGO）。 LIGO被设计成世界上最灵敏的引力辐射探测器，刚刚投入运行。 LIGO位于两个相距甚远的地点，一个在路易斯安那州的利文斯顿，另一个在汉福德华盛顿。 该利文斯顿网站位于约35英里的路易斯安那州立大学校园。 该小组打算利用利文斯顿站点与LSU校园的紧密联系来开发必要的诊断工具，以提高和维持LIGO的灵敏度。该项目将沿着三条调查路线进行：利文斯顿的LIGO干涉仪的在线诊断。 该小组将在LIGO投入运行时使用LIGO的全球诊断系统，以获得LIGO探测器组件的详细知识。 该小组的目标是获得有关LIGO行为的信息，使LIGO能够作为一种可靠的仪器使用。瞬态噪声识别。 LIGO的性能受到杂散信号或噪声的限制，这些杂散信号或噪声隐藏或模仿来自天体物理源的引力波信号。 研究人员将建立一个设施来测量LIGO各种机械部件产生的瞬态噪声。先进的LIGO地震隔离系统。 该小组将测试为下一代LIGO探测器开发的地震隔离系统的原型。该小组将在路易斯安那州立大学校园和LIGO站点让本科生和研究生参与研究。