Device for Energy Determination and Determination of a Depth Dose Distribution of Particle Radiation

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This invention concerns a device designed to determine the energy and depth dose distribution of particle beam radiation (such as protons or ions). The system includes a wedge-shaped phantom (made of tissue-equivalent material like PMMA), a luminescent interaction layer on one face of the wedge, and an optical radiation detector (such as a CMOS camera) positioned to capture light emitted by the interaction layer when struck by particle beams. This arrangement provides a fast, spatially-resolved profile of energy deposition (the depth dose) in the phantom, mimicking biological tissue.

Use CasesContent extracted from patent full text and abstract with AI.

• Dosimetry and quality assurance in proton or ion beam cancer therapy (e.g., for tumor treatments)
• Calibration and monitoring of therapeutic particle beams in hospitals or clinics
• Research and development of particle radiation systems
• Academic studies of particle beam interactions with tissue-equivalent materials
• Verification of radiation delivery in preclinical or clinical trials
• Non-clinical applications for radiation measurement in material science

BenefitsContent extracted from patent full text and abstract with AI.

• Rapid measurement of energy and depth-dose profiles (under 1 second), enabling efficient workflow in clinical settings
• Cost-effective and simple construction compared to traditional multi-leaf Faraday cups or ionization chamber systems
• Easily adaptable to different particle beam energies and sizes by adjusting phantom size/material
• Provides detailed spatial resolution of dose deposition (Bragg peak and full depth profile)
• Minimal setup and calibration required, enhancing usability
• Enables real-time or near-real-time feedback for therapy planning and quality control
• Compact and robust design for practical integration into medical or research equipment

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Patent Abstract

The invention relates to a device for energy determination and determination of a depth dose distribution of particle radiation, at least comprising a radiation detector (3) having an objective lens for the spatially resolved detection of photons, and a phantom (1) which is in the form of a wedge and has a first and a second face (1F, 2F) arranged at a 90° angle relative to one another, a third face 3F opposite the angle formed by the first and second face (1F, 2F), as well as an interaction layer (2) at least made of a luminescent material. According to the invention, the interaction layer (2) is arranged on the phantom (1) on the third face (3F), and the second face (2F) is parallel to a plane of the radiation detector (3).