Commissioning EMMA, the first nonscaling FFAG, at the Daresbury Laboratory

Emma是正在达累斯伯里建造的nsFFAG原型(世界上第一个)。我们预计大约12个月后开始试运行。除此之外，还有一个运行加速器并了解其行为的长期计划。我们在环本身和引出线上有一套非常完整的诊断探测器(如束流位置监测器)，因此我们可以改变操作参数(如磁电流)，并获得大量关于电子束行为的信息。这将使人们充分了解这种新型机器的行为，这将成为未来机器设计的重要输入，我们希望并期待未来机器将在医学、凝聚态和粒子物理中得到广泛应用。这种理解的一部分将通过运行模拟来获得。我们现在有两个代码用于FFAG模拟(这是至关重要的，因为我们可以相互检查它们)。需要进行许多模拟研究，将模拟结果与诊断数据联系在一起。该项目和相关方案正在使达累斯伯里和英国成为FFAG发展的世界领先者。

EMMA is a nsFFAG prototype (the world's first) which is being built at Daresbury. We anticipate the start of commissioning in about 12 months time. Beyond that there is a long programme of running the accelerator and understanding its behaviour. We have a very full set of diagnostic detectors (such as Beam Position Monitors) in the ring itself and in the extraction line, and so we can vary the operational parameters (such as magnet currents) and obtain a great deal of information about the behaviour of the electron bunches. This will lead to a full understanding of the behaviour of this new type of machine, which will act as vital input to the design of the future machines which we hope and expect will find widespread applications in medicine, condensed matter and particle physics. Part of this understanding will be gained through the running of simulations. We now have two codes for FFAG simulation (which is vital as we can then check them against each other). There are many simulation studies which will need to be done, tying in the simulation results with the data from the diagnostics. This project, and the associated programme, is establishing Daresbury and the UK as world leaders in FFAG development.