Polarized 129Xe optical pumping/spin exchange and delivery system for magnetic resonance spectroscopy and imaging studies
We describe the design and construction of a laser-polarized 129Xe production and delivery system that is used in our in vitro and in vivo magnetic resonance imaging (MRI) experiments. The entire appa...
We describe the design and construction of a laser-polarized 129Xe production and delivery system that is used in our in vitro and in vivo magnetic resonance imaging (MRI) experiments. The entire appa...
Two-dimensional low-frequency vibration attenuator using X pendulums
We have designed and constructed an improved two-dimensional X pendulum vibration–isolation table. It achieved a lower resonant frequency (7 s) than previous prototypes, and the effects of many p...
We have designed and constructed an improved two-dimensional X pendulum vibration–isolation table. It achieved a lower resonant frequency (7 s) than previous prototypes, and the effects of many p...
Final isolation stage for a spherical gravitational wave antenna
Rev. Sci. Instrum. 70, 1553 (1999); doi:10.1063/1.1149623
Issue Date: February 1999
You are not logged in to this journal. Log in
In order to measure the very weak interaction between a gravitational wave and a resonant-mass detector the antenna must be vibrationally isolated from all external excitations. In this article we describe an analytical and experimental study of the final support to a spherical antenna. We derive an analytical procedure for optimizing the dimensions of the support for maximum attenuation. The results of a finite element analysis are also presented that takes into account the elasticity of the sphere. The described techniques were used for designing the final support of a room-temperature prototype antenna. We found the measurements on this system to be in good agreement with the expected transfer functions. ©1999 American Institute of Physics.
| History: | Received 13 March 1998; accepted 10 November 1998 |
| Permalink: |
http://link.aip.org/link/?RSINAK/70/1553/1 |
| BUY THIS ARTICLE | (US$28) |
|
|
Connotea
CiteULike
del.icio.us
BibSonomy
KEYWORDS and PACS
vibration isolation,
gravitational wave detectors,
finite element analysis,
physical instrumentation control,
transfer functions,
astronomical instruments,
antenna accessories
- 95.55.Ym
Fundamental astronomy and astrophysics; instrumentation, techniques, and astronomical observations Astronomical and space-research instrumentation Gravitational radiation detectors; mass spectrometers; and other instrumentation and techniques - 04.80.Nn
General relativity and gravitation Experimental studies of gravity Gravitational wave detectors and experiments - 45.80.+r
Classical mechanics of discrete systems Control of mechanical systems - 84.40.Ba
Electronics; radiowave and microwave technology; direct energy conversion and storage Radiowave and microwave (including millimeter wave) technology Antennas: theory, components and accessories - 07.10.Fq
Instruments, apparatus, components, and techniques common to several branches of physics and astronomy Mechanical instruments, equipment, and techniques Vibration isolation - YEAR: 1999
RELATED DATABASES
PUBLICATION DATA
0034-6748 (print)
1089-7623 (online)
AIP
REFERENCES (8)
For access to fully linked references, you need to log in.
For access to fully linked references, you need to Log in.
- S. M. Merkowitz, Phys. Rev. D 58, 062002 (1998).
- J. A. Lobo, Phys. Rev. D 52, 591 (1995).
- C. Zhou and P. F. Michelson, Phys. Rev. D 51, 2517 (1995).
- A. E. H. Love, A Treatise on the Mathematical Theory of Elasticity, fourth ed. (Cambridge University Press, Cambridge, 1927).
- E. Coccia, Rev. Sci. Instrum. 53, 148 (1982).
- P. J. Veitch, Rev. Sci. Instrum. 62, 140 (1991).
- S. M. Merkowitz and W. W. Johnson, Phys. Rev. D 56, 7513 (1997).
- S. M. Merkowitz, INFN-Laboratori Nazionali di Frascati Technical report LNF-98/036 (1998).
