标题： 未来电子-离子对撞机前向探测器的GEM探测器研发 显示英文标题

标题： R&D on GEM Detectors for Forward Tracking at a Future Electron-Ion Collider

摘要： 我们报告了为未来电子离子对撞机（EIC）的前向探测器（FT）开发大型三GEM探测器的研发现状，这将有助于我们更好地理解QCD。 我们设计了一个专门针对EIC-FT的探测器原型，其形状为梯形，开口角度为30.1度。 我们正在研究不同的探测器组装技术和信号读出技术，但已设计了一种通用的GEM箔片，以最大限度地降低箔片生产的NRE成本。 组装技术包括一种纯粹的机械方法，包括如CMS所首创的箔片拉伸，但进行了某些修改，或者将箔片粘接到框架上，然后进行机械组装，或者将箔片粘接到框架上，然后将框架粘合在一起。 前两种组装技术允许重新打开腔室，以便在GEM箔片损坏时进行更换。 对于读出技术，我们正在追求一种成本效益高的二维读出技术，采用宽锯齿状条带，保持合理的空间分辨率，以及两种二维读出技术——一种是带有立体角（u-v）条带，另一种是带有r-phi条带。 此外，我们旨在实现整体低质量的探测器设计，以促进电子在低动量下散射时的良好能量分辨率。 我们提出了GEM箔片和其他探测器部件的设计，我们计划从美国公司完全获取这些部件。 显示英文摘要

摘要： We report the status of R&D on large triple-GEM detectors for a forward tracker (FT) in an experiment at a future Electron Ion Collider (EIC) that will improve our understanding of QCD. We have designed a detector prototype specifically targeted for the EIC-FT, which has a trapezoidal shape with 30.1 degrees opening angle. We are investigating different detector assembly techniques and signal readout technologies, but have designed a common GEM foil to minimize NRE cost for foil production. The assembly techniques comprise either a purely mechanical method including foil stretching as pioneered by CMS but with certain modifications, or gluing foils to frames that are then assembled mechanically, or gluing foils to frames that are then glued together. The first two assembly techniques allow for re-opening chambers so that a GEM foil can be replaced if it is damaged. For readout technologies, we are pursuing a cost-effective one-dimensional readout with wide zigzag strips that maintains reasonable spatial resolution, as well two-dimensional readouts - one with stereo-angle (u-v) strips and another with r-phi strips. In addition, we aim at an overall low-mass detector design to facilitate good energy resolution for electrons scattered at low momenta. We present design for GEM foils and other detector parts, which we plan to entirely acquire from U.S. companies.