Development of a Time Projection Chamber Readout with Hybrid Pixel Sensors for Beam Monitoring
Yingdong Song, Haibo Yang, Yuezhao Zhang, Jianwei Liao, Yanhao Jia, Peng Ma, Yufeng Hou, Xiangming Sun, Hulin Wang, Haisheng Song, Chengxin Zhao
TL;DR
This paper introduces HiBeam-T, a system using pixel sensors to monitor carbon beams in real-time with high precision.
Contribution
The novel contribution is the development of HiBeam-T, a TPC readout system with hybrid pixel sensors for beam monitoring.
Findings
HiBeam-T uses forty Topmetal-II-CMOS pixel sensors for beam monitoring.
The system achieved a beam center measurement resolution of 6.45 μm.
The detector has a sensitive area of 20 × 20 cm and includes charge drift and collection regions.
Abstract
To monitor the position and profile of therapeutic carbon beams in real-time, in this paper, we proposed a system called HiBeam-T. The HiBeam-T is a time projection chamber (TPC) with forty Topmetal-II- CMOS pixel sensors as its readout. Each Topmetal-II- has 72 × 72 pixels with the size of 83 μm × 83 μm. The detector consists of the charge drift region and the charge collection area. The readout electronics comprise three Readout Control Modules and one Clock Synchronization Module. This Hibeam-T has a sensitive area of 20 × 20 cm and can acquire the center of the incident beams. The test with a continuous 80.55 MeV/u 12C6+ beam shows that the measurement resolution to the beam center could reach 6.45 μm for unsaturated beam projections.
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Taxonomy
TopicsRadiation Detection and Scintillator Technologies · Particle Detector Development and Performance · CCD and CMOS Imaging Sensors