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Title: A high frequency resonance gravity gradiometer

A new setup OGRAN—the large scale opto-acoustical gravitational detector is described. As distinguished from known gravitational bar detectors it uses the optical interferometrical readout for registering weak variations of gravity gradient at the kilohetz frequency region. At room temperature, its sensitivity is limited only by the bar Brownian noise at the bandwidth close to 100 Hz. It is destined for a search for rare events—gravitational pulses coincident with signals of neutrino scintillator (BUST) in the deep underground of Baksan Neutrino Observatory of INR RAS.
Authors:
; ;  [1] ; ;  [2] ; ; ; ; ;  [3] ;  [2] ;  [4]
  1. Laser Physics Institute SB RAS, Novosibirsc (Russian Federation)
  2. Institute of Nuclear Physics RAS, Moscow (Russian Federation)
  3. Lomonosov MSU, Sternberg Astronomical Institute, Moscow (Russian Federation)
  4. (Russian Federation)
Publication Date:
OSTI Identifier:
22308818
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BACKGROUND NOISE; COINCIDENCE METHODS; GRAVITATION; GRAVITATIONAL WAVE DETECTORS; INTERFEROMETRY; NEUTRINOS; PHOSPHORS; READOUT SYSTEMS; SENSITIVITY; SIGNALS; TEMPERATURE RANGE 0273-0400 K; UNDERGROUND FACILITIES