Speaker
Dr
Mika Masuzawa
(KEK)
Description
The KEKB B-Factory will be upgraded to SuperKEKB using the same tunnel
as KEKB. The SuperKEKB design peak luminosity is 40 times higher than
the world record luminosity which KEKB has achieved. The upgrade is
based on the “Nano-Beam” scheme, wherein the beam size is reduced to
less than 100 nanometers in the vertical direction at the interaction
point (IP). Vibration in the tunnel, especially at the IP, could be a
critical issue which may result in luminosity degradation. Vibration
measurements made at several locations including the present KEKB
tunnel, the BELLE detector, and the final focus quadruple magnets will
be reported.
Primary author
Dr
Mika Masuzawa
(KEK)
Co-authors
Hiroshi Yamaoka
(KEK)
Prof.
Ryuhei Sugahara
(KEK)
