• Operational status of the vacu...

Treffer: Operational status of the vacuum system of the 300 m gravitational wave laser interferometer, TAMA300

Title:
Operational status of the vacuum system of the 300 m gravitational wave laser interferometer, TAMA300
Authors:
SAITO, Y, HORIKOSHI, G, TAKAHASHI, R, FUKUSHIMA, M
Source:
The Sixth European Vacuum Conference, 7-10 December 1999, Villeurbanne, FranceVacuum. 60(1-2):3-8
Publisher Information:
Oxford: Elsevier, 2001.
Publication Year:
2001
Physical Description:
print, 11 ref
Original Material:
INIST-CNRS
Subject Terms:
Metallurgy, welding, Métallurgie, soudage, Physics, Physique, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Generalites, General, Relativité générale et gravitation, General relativity and gravitation, Etudes expérimentales de la gravitation, Experimental studies of gravity, Détecteurs d'ondes gravitationnelles et expériences, Gravitational wave detectors and experiments, Instruments, appareillage, composants et techniques communs à plusieurs branches de la physique et de l'astronomie, Instruments, apparatus, components and techniques common to several branches of physics and astronomy, Technique du vide, Vacuum apparatus and techniques, Chambres à vide, appareillage auxiliaire et matériaux, Vacuum chambers, auxiliary apparatus and materials, Instrumentation, équipement et techniques optiques, Optical instruments, equipment and techniques, Interféromètres, Interferometers, Terre, ocean, espace, Earth, ocean, space, Astronomie, Astronomy, Astronomie fondamentale et astrophysique. Instrumentation, techniques, et observations astronomiques, Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations, Instruments d'astronomie et de recherche spatiale, Astronomical and space-research instrumentation, Détecteurs de rayonnement gravitationnel; spectromètres de masse; et autres instruments et techniques, Gravitational radiation detectors; mass spectrometers; and other instrumentation and techniques, Vacuum chambers, auxiliary apparatus, and materials, Appareillage, Instrumentation, Chambre à vide, Vacuum chamber, Cámara de vacío, Détecteur onde gravitationnelle, Gravitational wave detectors, Interféromètre laser, Laser interferometer, Interferómetro laser, Miroir suspendu, Projet TAMA300
Document Type:
Konferenz Conference Paper
File Description:
text
Language:
English
Author Affiliations:
KEK-High Energy Accelerator Research Organization, Tsukuba, Ibaraki, 305, Japan
NAO-National Astronomical Observatory, Ohsawa, Mitaka, Tokyo, 181, Japan
ISSN:
0042-207X
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=1032528
Rights:
Copyright 2001 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Astronomy

Metrology

Theoretical physics
Accession Number:
edscal.1032528
Database:
PASCAL Archive

Weitere Informationen

TAMA300, a laser interferometric detector for gravitational waves, involves two vacuum ducts (300 m long, 400 mm in diameter) and eight vacuum chambers (2 m high, 1.2 m in diameter). All surfaces of the ducts and chambers were finished by electrochemical buffing so as to reduce the outgassing rate. The vacuum system was completed at the beginning of 1998. After 2000 h of pumping, the vacuum pressures in the ducts were 2.5 × 10-6 Pa without baking, eventually reaching to 3 × 10- Pa after 13000 h of pumping when the ducts were separated from the chamber. By February of 1999, the mirror suspension system was fully installed in the chambers. During the summer of 1999, a test-run of the entire system of TAMA300 was successfully made. The pressures in the ducts and chambers, during interferometer operation, are in the range of 2-3 × 10-6 Pa, while the pressures in the chambers are kept at 1 × 10-5 Pa.