Within the framework of the world-wide collaboration on Linear Colliders, the Compact Linear Collider (CLIC) study explores the technical feasibility of beam acceleration by travelling wave structures at room temperature and high frequency (30 GHz) powered from a drive beam, the so-called Two Beam Acceleration scheme. CLIC covers a center-of-mass energy range for electron-positron collisions of 0.5 to 5 TeV.

The CLIC study team is based in AB Department .

The status, at the beginning of 2003, of the four Linear Collider (LC) studies (CLIC included), carried out around the world, were summarized in a presentation given on 10 July, 2003. The technical characteristics of these design studies (CLIC included), as well as the view of the International LC Technical Review Committee on the R&D issues yet to be covered, were presented.

The design study has been optimised for a nominal center-of-mass energy of 3 TeV (3 TeV CLIC), the description of which follows, together with access to the corresponding report files. In addition, the chapters of the ILC-TRC (ICFA-Linear Collider Technical Review Committee) report describing the 500 GeV CLIC, the CLIC path to higher energies, and the CLIC test facility and other R&D programs are also made available below.

Linear Collider Schemes - Technical Characteristics and View of the International LC Technical Review Committee (pdf) - talk given on 10 July 2003.

ILC-TRC Report Chapter 3 (pdf and ps versions), Description of the 500 GeV CLIC, 17 December 2001, revised 26 April 2002 and 15 August 2002.

ILC-TRC Report Chapter 4 (pdf and ps versions), CLIC Upgrade Path to Higher Energies, 14 August 2002.

CERN 2000-008 (pdf and ps versions), A 3 TeV e⁺e^- Linear Collider based on CLIC Technology, 28 July 2000

Direct access to Sections, Figures, Tables and References of the report about the nominal energy CLIC :

A 3 TeV e+e- Linear Collider based on CLIC Technology

1 General Introduction

1.1 Prospects for physics

1.2 Overview of the linear collider

2 Main-Beam Generation, Acceleration and Delivery

2.1 Introduction

2.2 Injection system

2.2.1 Basic parameters
2.2.2 Overall injection complex
2.2.3 Positron production
2.2.4 Damping rings
2.2.5 Bunch compressors and transfer lines

2.3 Main linac

2.3.1 The main linac lattice
2.3.2 Static trajectory correction
2.3.3 Time-dependent effects
2.3.4 Emittance balance
2.3.5 The main linac accelerating structure

2.4 Main-beam delivery

2.4.1 Function and length of the beam delivery
2.4.2 Baseline design
2.4.3 Machine-detector interface - beam-beam interaction

2.5 Micro-alignment system

3 Drive Beam and RF Power Source

3.1 Introduction

3.2 Drive-beam injector

3.2.1 Overview of the system
3.2.2 Beam characteristics required at injector exit
3.2.3 Beam dynamics simulations
3.2.4 A photo-injector option

3.3 Drive-beam accelerating linac

3.3.1 The accelerator beam dynamics
3.3.2 Description of the accelerator cavities
3.3.3 Drive-beam power systems

3.4 Frequency multiplication and pulse compression

3.4.1 Design of the delay line and combiner rings
3.4.2 Transfer lines, compressors, path-length chicanes and loops

3.5 Drive-beam decelerator

3.5.1 Lattice and beam stability
3.5.2 The Power Extraction and Transfer Structure

3.6 Power transfer efficiency

4 Auxiliary Systems

4.1 Machine protection system

4.2 Beam dumps

5 CLIC Test Facilities and the Route to CLIC

5.1 The various stages and a possible schedule

5.2 CLIC Test Facilities

5.2.1 CTF1 overview and results
5.2.2 CTF2 overview and results
5.2.3 CTF3 description

5.3 CLIC1 - A single-drive-beam unit

References

Appendix- Parameter summary and general layout of the CLIC complex

Tables

Figures

Parameters

CLIC Publications