Science Focus
original post »Scientists working on an experiment at the SLAC National Accelerator Laboratory in the US have taken a step forward in developing a technology which could significantly reduce the size of particle accelerators and, consequently, their cost. The technology is able to accelerate particles in a far shorter space than conventional accelerators.
One of the most impressive aspects of particle accelerators used for research, notably the Large Hadron Collider (LHC) at CERN, are their physical size. Yet even with a circumference of 27km, the LHC would be smaller than most of the next generation of proposed colliders. For example, the International Linear Collider (ILC), a possible future collider of electrons and positrons (anti-electrons) could be 31km long, and there is even a proposal for a circular accelerator with an 80km circumference that could be built at CERN as part of the Future Circular Colliders (FCC) project.
The size of all of these machines is determined by our ability to build structures that can transfer energy to particles, allowing us to accelerate them to greater speeds. The higher the speed, the greater the energy when these particle beams collide, giving scientists a better chance of answering fundamental questions about the Universe. This is because higher energy collisions can create conditions that are similar to those that existed closer to when the Universe was born.
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» see original post http://feeds.arstechnica.com/~r/arstechnica/science/~3/18ax8Hsl8gk/
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