MICE概述
MICE Overview
摘要：
μ子电离冷却为中微子工厂或μ子对撞机提供了制备所需的高亮度光束的唯一实用解决方案。Muon Ionization Cooling Experiment（MICE）是在Rutherford Appleton Laboratory（UK）进行的。它包括一个专用的光束线，旨在产生一系列的输入发射度和动量与飞行时间和切伦科夫探测器选择一个纯μ子束。发射度的第一次测量是在上游磁谱仪中用一个闪烁的光纤跟踪器进行的。随后将有一个冷却单元，交替使用液氢中的能量损失和射频腔的加速。与第一和另一粒子识别系统相同的第二光谱仪提供出射发射度的测量。预计在2009年底，束流和许多粒子识别探测器将进入最后调试阶段，输入束流发射度的首次测量将在2010年进行。将描述调试、发射度测量和冷却的步骤。
英文摘要：
Muon ionization cooling provides the only practical solution for preparing high brightness beams necessary for a neutrino factory or muon collider. The Muon Ionization Cooling Experiment (MICE) is under development at the Rutherford Appleton Laboratory (UK). It comprises a dedicated beam line designed to generate a range of input emittances and momenta with time-of-flight and Cherenkov detectors to select a pure muon beam. A first measurement of emittance is performed in the upstream magnetic spectrometer with a scintillating fiber tracker. A cooling cell will then follow, alternating energy loss in liquid hydrogen and acceleration by RF cavities. A second spectrometer identical to the first and another particle identification system provide a measurement of the outgoing emittance. In late 2009, it is expected that the beam and many of the particle identification detectors will be in the final commissioning phase, and the first measurement of input beam emittance will take place in 2010. The steps of commissioning, emittance measurement and cooling will be described.
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