Tracking of single particles accelerated by synchrotrons is a subject that crosses several physics fields. The high clinical intensities used in particle therapy that can exceed 10⁹ p/s make this task very challenging. The tracking of the arrival time of single particles in the ion beam is fundamental for the verification of the particle range and dose delivered to the patient. We present a prototype made of scintillating fibers which has been used to provide time-of-flight (TOF) information for three beam species currently accelerated at the Heidelberg Ion-Beam Therapy Center (HIT). We have demonstrated a time-tracker for a prompt-gamma spectroscopy system that allows for a background TOF rejection with a sub-nanosecond time resolution.

同步加速器加速单个粒子的跟踪是一个跨越多个物理领域的课题。粒子治疗中使用的高临床强度可能会超过10 ⁹ p / s，这使这项任务非常具有挑战性。跟踪离子束中单个粒子的到达时间对于验证粒子范围和输送给患者的剂量至关重要。我们提供了一种由闪烁纤维制成的原型，该原型已用于为海德堡离子束治疗中心（HIT）目前正在加速的三种束流提供飞行时间（TOF）信息。我们已经展示了一种用于瞬发伽马光谱系统的时间跟踪器，该系统可以以亚纳秒的时间分辨率实现背景TOF抑制。