Low energy electrons in accelerators are known to interact with the circulating beam, giving
rise to the formation of a so-called e-cloud. Such e-cloud may induce detrimental effects on …

Since 2001, the Relativistic Heavy Ion Collider has experienced electron cloud effects, some
of which have limited the beam intensity. These include dynamic pressure rises (including …

Electron cloud effects are one of the main limitations of the performance of the LHC and its
injectors. Enormous progress has been made in the simulation of the electron cloud build-up …

During the beam commissioning of the Large Hadron Collider (LHC)[LHC Design Report
No. CERN-2004-003-V-1, 2004 [http://cds. cern. ch/record/782076? ln= en]; O. Brüning, H …

Laser treated material surface has highly regular curves and greatly reduces the secondary
electron yield of surface. As one of the most typically used materials in the vacuum system of …

Trapping of particles in nonlinear resonances in the presence of space charge and
synchrotron motion may be a source of beam halo generation and beam loss in high …

During the operation of the Large Hadron Collider in 2018, the majority of physics data was
collected with a beam energy of 6.5 TeV, a bunch spacing of 25 ns and with V-functions in …

Several indicators have pointed to the presence of an Electron Cloud (EC) in some of the
CERN accelerators, when operating with closely spaced bunched beams. In particular …

Design of an accelerator vacuum chamber requires an input from different scientific
disciplines such as surface science, material science, gas dynamics, particle beam …

Abstract Operation of the Large Hadron Collider (LHC) with protons has revealed that
different bunches evolve differently mostly due to the interaction between the two colliding …