Optical readout for a Dual-Readout calorimeter

对撞机实验中的粒子探测器就像一台大型数码相机，通过它们在敏感材料中产生的信号来显示碰撞后粒子的“照片”。就像在数码相机中一样，需要最终的探测器分辨率才能看到这些粒子相互作用的细节。事实上，我们的粒子物理学主要理论是如此精细地发展，我们将需要高分辨率来发现与理论预测的微小偏差，提高我们的知识。一种新概念的粒子探测器，一种双读出量热计，有望为一个非常广泛的粒子类别的能量测量提供前所未有的分辨率，称为强子。这种能量分辨率将使我们能够区分不同的表现形式，例如，希格斯玻色子，大大增加了我们对它的知识，从而提高了我们研究它的能力。这个项目的重点是开发一个实验室基础设施，以便能够为这种创新的粒子探测器的关键研发做出贡献。特别是，它将研究量热计的光学元件可以捕获多少光，以及如何确定能量沉积的时间。

A particle detector at a collider experiment works fairly like a big digital camera, developing "pictures" of the particles coming out of the collision through the signals that they generate in the sensitive material. Like in a digital camera, an ultimate detector resolution is needed to be able to look at the fine details of these particle interactions. Indeed, our particle physics main theory is so finely developed, that we will need high resolution to spot tiny deviations from what the theory predicts, improving our knowledge.A new concept of particle detector, a dual-readout calorimeter, promises to yield unprecedented resolution for the energy measurement of a very broad class of particles, known as hadrons. This energy resolution will allow us to distinguish different manifestations of, e.g., the Higgs boson, greatly increasing the knowledge we have about it, thus our ability to study it.This project focuses on the development of a lab infrastructure to be able to contribute to key R&D for this innovative particle detector. In particular, it will study how much light the optical elements of the calorimeter can trap, and how well the timing of the energy deposits can be determined.