A Single-Particle Trigger for Time-of-Flight Measurements in Prompt-Gamma Imaging

被引：8

作者：

Martins, Paulo Magalhaes ^{[1
,2
]}

Dal Bello, Riccardo ^{[1
,3
]}

Seimetz, Michael ^{[4
]}

Hermann, German ^{[5
]}

Kihm, Thomas ^{[5
]}

Seco, Joao ^{[1
,3
]}

机构：

[1] German Canc Res Ctr, Heidelberg, Germany

[2] Univ Lisbon, Inst Biofis & Engn Biomed, Fac Ciencias, Lisbon, Portugal

[3] Heidelberg Univ, Dept Phys & Astron, Heidelberg, Germany

[4] Univ Politecn Valencia, Inst Instrumentac Imagen Mol I3M, CSIC, Valencia, Spain

[5] Max Planck Inst Nucl Phys, Heidelberg, Germany

来源：

FRONTIERS IN PHYSICS | 2020年 / 8卷

关键词：

prompt-gamma; particle tracking; scintillating fibers; ion-beam therapy; synchrotrons; PROTON RANGE VERIFICATION; PLASTIC SCINTILLATION DETECTORS; ENERGY BEAM DOSIMETRY; RANDOM COINCIDENCES; PET MEASUREMENTS; SLIT CAMERA; PHOTON; SYSTEM; RAYS;

D O I：

10.3389/fphy.2020.00169

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 10(9)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.

引用

页数：13

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