Given the importance of accelerator devices, major developed and emerging countries
around the world have invested substantial human and material resources into the …

A control survey technique using a laser tracker and a digital level was introduced to the
KEK e−/e+ injector linac in 2020. Control surveys are continuously demonstrated during the …

A multi-slit (MS) Very Small Angle Scattering (VSANS) instrument is now under construction
on Beam Line 14 in China Spallation Neutron Source (CSNS). It is an upgrade of traditional …

As a fourth-generation light source based on a diffraction-limited storage ring, Hefei
Advanced Light Facility (HALF) has higher requirements for the alignment of magnets in …

Starting in 1996, the coordinates of the accelerator components on the SPring-8 storage ring
were continuously surveyed for over two decades. The dispersion of the elevation changes …

Background Currently, laser tracker is the primary instrument used to carry out three-
dimensional position measurement in accelerator alignment. Theoretically, three …

A conventional control survey technique using a laser tracker and a digital level has been
finally introduced in the KEK e−/e+ injector linac in 2020. The control survey are …

The spatiotemporal diffusive evolution and fractal structure of ground motion have been
investigated at the in-ground tunnel of the KEK B-Factory (KEKB) injector linear accelerator …

In rotating machines, misaligned shafts increase vibrations and friction, which can increase
the energy consumption considerably and cause premature bearing and seal damage …

• Accelerators built in a tangential plane (slightly tilted to accommodate geological
deformations)• All points around an untilted circular machine lie at the same height.• Linear …