The technology behind the linear collider

The world HEP community has reached a consensus that a 500-1000 GeV linear collider should be the next large accelerator built. The technology needed to build both the accelerator and detector is far more advanced than anything we have done before. Some desired detector resolutions are a factor of two better than ever before achieved. Accelerator gradients will be as high as the ongoing R&D programs can achieve. The design luminosity is 10,000 times that achieved by the first and only linear collider. Ongoing R&D programs around the world are aimed at achieving the few nanometer spot size and stability and the reliability needed to achieve this luminosity.