Tomoko Muranaka

Abstract: The CLIC/CTF3 collaboration is studying the feasibility of a multi-TeV electron-positron collider, the so-called CLIC: Compact LInear Collider. The idea is to use a two-beam acceleration scheme at an RF frequency around 12 GHz. In this scheme, the RF power to accelerate the main beam is produced by a high current drive beam. To demonstrate the feasibility of this scheme, the CTF3 facility (CLIC Test Facility 3) has been constructed at CERN. Recently, the complex to generate the drive beam has been successfully commissioned producing a beam with a current 28 A. This beam is now being used to test the power production and main beam acceleration according to the two-beam scheme. The results of the test facility provide vital input for the CLIC conceptual design report that is presently being prepared.

TL;DR: In this article, the authors used a Scanning Electron Microscope (SEM) at Uppsala university to investigate localized breakdown phenomena and achieved the resolution of the electron probe in the fewnm range, which is of great advantage as the surface roughness of the polished accelerating structures is in the same scale.

TL;DR: The performance of future high energy accelerators such as the Compact Linear Collider (CLIC) has been investigated in this article. But the performance of the CLIC has not yet been evaluated.

TL;DR: In this article, the authors report various experiments conducted in the TBTS making use of the versatility of the probe beam and of dedicated diagnostics, which is used to assess the performances of these structures.