标题： 使用高频碳化硅读出系统表征MedAustron医疗质子和碳离子束的输送溢流结构 显示英文标题

标题： Characterizing the Delivered Spill Structure of Medical Proton and Carbon-Ion Beams at MedAustron using a High Frequency Silicon Carbide Readout

摘要： 医用同步加速器常用于高能物理中的仪器测试或医学物理中的非临床研究。 在医用同步加速器的许多应用中，如微剂量测量和离子成像，精确了解束流结构和瞬时粒子速率至关重要。 虽然传统的电离室在临床环境中广泛使用，但它们在电荷分辨率和积分时间方面存在局限性，使得在高剂量率下进行单粒子检测不可行。 为解决这些限制，我们提出了一种基于碳化硅（SiC）传感器和单片微波集成电路（MMIC）的束流检测装置，能够以500皮秒的半高全宽（FWHM）脉冲持续时间检测单个粒子。 在MedAustron离子治疗中心，我们对输送到照射室的质子和碳离子束的束流结构进行了表征，其时间尺度超过了同步加速器中最大离子旋转频率的时间尺度。 所得数据为小时间尺度上的束流强度提供了有价值的见解，并展示了基于SiC的系统在高通量束流监测方面的能力。 显示英文摘要

摘要： Medical synchrotrons are often used for testing instrumentation in high-energy physics or non-clinical research in medical physics. In many applications of medical synchrotrons, such as microdosimetry and ion imaging, precise knowledge of the spill structure and instantaneous particle rate is crucial. Conventional ionization chambers, while omnipresent in clinical settings, suffer from limitations in charge resolution and integration time, making single-particle detection at high dose rates unfeasible. To address these limitations, we present a beam detection setup based on a silicon carbide (SiC) sensor and a monolithic microwave integrated circuit (MMIC), capable of detecting single particles with a full width at half maximum (FWHM) pulse duration of 500 ps. At the MedAustron ion therapy center, we characterized the spill structure of proton and carbon-ion beams delivered to the irradiation room beyond the timescale of the maximum ion revolution frequency in the synchrotron. The resulting data offer valuable insights into the beam intensity at small time scales and demonstrate the capabilities of SiC-based systems for high-flux beam monitoring.