Berlin 2024 – wissenschaftliches Programm
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ST: Fachverband Strahlen- und Medizinphysik
ST 9: Radiation Monitoring and Dosimetry
ST 9.4: Vortrag
Donnerstag, 21. März 2024, 15:45–16:00, PC 203
A Two Plane Proton Imaging System Using ATLAS IBL Pixel Detectors — •Hendrik Speiser1, Claus Maximilian Bäcker2, Christian Bäumer2, Jana Hohmann3, Kevin Kröninger1, Isabelle Schilling3, Helen Thews1, and Jens Weingarten1 — 1TU Dortmund — 2West German Proton Therapy Center Essen — 3Formerly TU Dortmund
For years, proton therapy is increasingly being used to treat cancer because of its well-known advantages, such as the high dose precision of protons. However, exploiting this precision requires improved imaging techniques to ensure accurate patient positioning and dose delivery. One such technique is proton radiography, where the residual energy distribution of protons after going through the patient is measured.
Former studies showed the feasibility of proton radiography using a single radiation hard ATLAS IBL pixel detector. In order to improve the energy resolution of the resulting images, a second pixel detector of the same kind and a water equivalent absorber between both detectors are used. Proof-of-concept simulation studies of a so-called Two-Plane-System showed promising results. Thus, the aim of the project is to realize such a system and investigate the yielded energy resolution. To this purpose, first measurements were conducted at the West German Proton Therapy Centre in Essen.
This talk will briefly introduce the Two-Plane-System. Subsequently, first results concerning its realization with the ATLAS IBL pixel detector and future steps of the project are presented.
Keywords: Proton Radiography; Pixel detector; Proton Therapy; Proton Imaging; Imaging