We report on the results of a radiation campaign with neutrons and protons of Low Gain Avalanche Detectors (LGAD) produced by Hamamatsu (HPK) as prototypes for the High-Granularity Timing Detector (HGTD) in ATLAS. Sensors with an active thickness of $50\mathrm{\mu }\mathrm{m}$ were irradiated in steps of roughly 2$\times$ up to a fluence of 3$\times 10^{15}{\mathrm{n}}_{\mathrm{eq}}{\mathrm{cm}}^{-2}$. As a function of the fluence, the collected charge and time resolution of the irradiated sensors will be reported for operation at $-30$ °C.

中文翻译：

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HPK原型LGAD传感器的辐射运动，用于高粒度定时检测器（HGTD）

我们报告了由Hamamatsu（HPK）生产的低增益雪崩探测器（LGAD）的中子和质子作为ATLAS高粒度定时探测器（HGTD）原型的辐射运动的结果。有效厚度为$50\mathrm{\mu }\mathrm{米}$ 大约以2的步长进行辐照$\times$ 最高可达3$\times \mathrm{1个}{0}^{15}{\mathrm{ñ}}_{\mathrm{当量}}{\mathrm{厘米}}^{-2}$。作为能量密度的函数，将报告所收集的辐照传感器的电荷和时间分辨率，以便在$-30$ ℃。