Capacitive sensor setup for Creep rate measurement on hydroxide-catalysis bonded silica ears

ORAL

Abstract

Analysis of the GEO600 detector data has not shown any evidence of the existence of creep caused by hydroxide catalysis bonds in the mirror suspensions above the measurement sensitivity. Measuring directly the bond creep noise on samples of advanced detectors such as aLigo is a prudent research step. A system for direct detection of creep at a higher sensitivity is being design and mounted close to a set of aLIGO prototype test masses. Such system is based on capacitive sensors, which are used to measure any displacement either linear or rotational. This capacitive sensors are based on the electrical capacitance dependence of a conductor due to the distance from a dielectric body. A set of thermistors able to measure changes in temperature also form part of this setup. The goal is to be able to prove the presence of creep on the bonding used in the aLigo suspension test masses, and if such creep noise is presented find what produce it.

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Authors

  • Karla Ramirez

    University of Texas at Brownsville

  • Hanu Arava

    University of Houston, University of Texas at Brownsville, None, Univ of Texas, San Antonio, University of Texas at El Paso, Univ of Arizona, Department of Physics and Astronomy and Center for Gravitational Wave Astronomy, University of Texas at Brownsville, Laboratoire des Mat\'eriaux Avanc\'es, Universit\'e Claude Bernard Lyon 1, UTEP, University of Texas, Austin, University of Texas at Austin, Institute for Astronomy, Russian Academy of Sciences, University of Texas at Arlington, The University of Texas at Arlington, MIT, U. Mass. Dartmouth, Texas A{\&}M University, Texas Christian University, Laboratoire des Mat\'erieux Avanc\'es B\^atiment Virgo, Ion Beam Materials Laboratory, Los Alamos National Laboratory, Texas A\&M University, Accelerator Research Laboratory, University of Florida, The Ohio State University, Yale University, University of Guelph, Canada, Armagh Observatory, NASA-Ames, NASA-Goddard, Texas A\&M University-Commerce, Texas A\&M University, Hanyang University, Texas A\&M Univ, Department of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran, Physics Department, Texas State University at San Marcos

  • Hanu Arava

    University of Houston, University of Texas at Brownsville, None, Univ of Texas, San Antonio, University of Texas at El Paso, Univ of Arizona, Department of Physics and Astronomy and Center for Gravitational Wave Astronomy, University of Texas at Brownsville, Laboratoire des Mat\'eriaux Avanc\'es, Universit\'e Claude Bernard Lyon 1, UTEP, University of Texas, Austin, University of Texas at Austin, Institute for Astronomy, Russian Academy of Sciences, University of Texas at Arlington, The University of Texas at Arlington, MIT, U. Mass. Dartmouth, Texas A{\&}M University, Texas Christian University, Laboratoire des Mat\'erieux Avanc\'es B\^atiment Virgo, Ion Beam Materials Laboratory, Los Alamos National Laboratory, Texas A\&M University, Accelerator Research Laboratory, University of Florida, The Ohio State University, Yale University, University of Guelph, Canada, Armagh Observatory, NASA-Ames, NASA-Goddard, Texas A\&M University-Commerce, Texas A\&M University, Hanyang University, Texas A\&M Univ, Department of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran, Physics Department, Texas State University at San Marcos

  • Hanu Arava

    University of Houston, University of Texas at Brownsville, None, Univ of Texas, San Antonio, University of Texas at El Paso, Univ of Arizona, Department of Physics and Astronomy and Center for Gravitational Wave Astronomy, University of Texas at Brownsville, Laboratoire des Mat\'eriaux Avanc\'es, Universit\'e Claude Bernard Lyon 1, UTEP, University of Texas, Austin, University of Texas at Austin, Institute for Astronomy, Russian Academy of Sciences, University of Texas at Arlington, The University of Texas at Arlington, MIT, U. Mass. Dartmouth, Texas A{\&}M University, Texas Christian University, Laboratoire des Mat\'erieux Avanc\'es B\^atiment Virgo, Ion Beam Materials Laboratory, Los Alamos National Laboratory, Texas A\&M University, Accelerator Research Laboratory, University of Florida, The Ohio State University, Yale University, University of Guelph, Canada, Armagh Observatory, NASA-Ames, NASA-Goddard, Texas A\&M University-Commerce, Texas A\&M University, Hanyang University, Texas A\&M Univ, Department of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran, Physics Department, Texas State University at San Marcos

  • Hanu Arava

    University of Houston, University of Texas at Brownsville, None, Univ of Texas, San Antonio, University of Texas at El Paso, Univ of Arizona, Department of Physics and Astronomy and Center for Gravitational Wave Astronomy, University of Texas at Brownsville, Laboratoire des Mat\'eriaux Avanc\'es, Universit\'e Claude Bernard Lyon 1, UTEP, University of Texas, Austin, University of Texas at Austin, Institute for Astronomy, Russian Academy of Sciences, University of Texas at Arlington, The University of Texas at Arlington, MIT, U. Mass. Dartmouth, Texas A{\&}M University, Texas Christian University, Laboratoire des Mat\'erieux Avanc\'es B\^atiment Virgo, Ion Beam Materials Laboratory, Los Alamos National Laboratory, Texas A\&M University, Accelerator Research Laboratory, University of Florida, The Ohio State University, Yale University, University of Guelph, Canada, Armagh Observatory, NASA-Ames, NASA-Goddard, Texas A\&M University-Commerce, Texas A\&M University, Hanyang University, Texas A\&M Univ, Department of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran, Physics Department, Texas State University at San Marcos