Published 2012 | Version v1
Miscellaneous

Variation of the circumference of the KEKB ring after the Great East Japan Earthquake

  • 1. High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki (Japan)

Description

At the time of The Great East Japan Earthquake, which took place on March 11, 2011, the alignment of magnets in the KEKB ring was deformed in the order of some millimeters. In the construction of the KEKB ring, the tolerance for the ring circumference was as tight as ±10 mm, 3 ppm of the KEKB circumference. So the circumference of the ring was measured after the earthquake with a laser tracker and a mekometer. Results of this measurement are reported. (author)

Part of:
Proceedings of the 9th annual meeting of Particle Accelerator Society of Japan

Additional details

Publishing Information

Imprint Title
Proceedings of the 9th annual meeting of Particle Accelerator Society of Japan
Imprint Pagination
[1359 p.]
Journal Page Range
[4 p.]

Conference

Title
9. annual meeting of Particle Accelerator Society of Japan
Dates
8-11 Aug 2012
Place
Toyonaka, Osaka (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
45043417
Subject category
S43: PARTICLE ACCELERATORS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
B MESONS; COLLIDING BEAMS; EARTHQUAKES; ELECTRONS; EXCEPTIONAL NATURAL DISASTER; GROUND MOTION; JAPANESE ORGANIZATIONS; POSITRONS; SEISMIC EFFECTS; STORAGE RINGS
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BEAMS; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; ELEMENTARY PARTICLES; FERMIONS; HADRONS; LEPTONS; MATTER; MESONS; MOTION; NATIONAL ORGANIZATIONS; NATURAL DISASTERS; PSEUDOSCALAR MESONS; SEISMIC EVENTS

Optional Information

Notes
4 refs., 3 figs., 1 tab.