Observation of mechanical Nyquist noise in a cryogenic gravitational-wave antenna

Journal Article · Mon Feb 28 00:00:00 EST 1977 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.38.454· OSTI ID:7317308

Boughn, S P; Fairbank, W M; Giffard, R P; Hollenhorst, J N; McAshan, M S; Paik, H J; Taber, R C

A 680-kg, Weber-type, cylindrical, gravitational-wave detector has been operated at liquid helium temperature. The average vibrational energy in the lowest longitudinal mode at 1315.3 Hz was found to be consistent with the level of thermal noise at the antenna temperature. An effective noise temperature of 0.39 K for pulse excitation was measured. This is a factor of 20 below the lowest published values for room-temperature detectors.

• Research Organization: Department of Physics and W. W. Hansen Laboratories of Physics, Stanford University, Stanford, California 94305
• OSTI ID: 7317308
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 38:9
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
GRAVITATIONAL WAVE DETECTORS
NOISE
ANTENNAS
CALIBRATION
CORRELATION FUNCTIONS
CRYOGENICS
SENSITIVITY
ULTRALOW TEMPERATURE
ELECTRICAL EQUIPMENT
EQUIPMENT
FUNCTIONS
MEASURING INSTRUMENTS
RADIATION DETECTORS
440300* - Miscellaneous Instruments- (-1989)