A. Hirtl
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Double multiturn injection scheme for generating mixed helium and carbon ion beams at medical synchrotron facilities Open
The low relative charge-to-mass ratio offset of 0.065% between fully ionized helium-4 and carbon-12 ions enables simultaneous acceleration in hadron therapy synchrotrons. At the same energy per mass, helium ions exhibit a stopping range ap…
View article: LGAD technology for heavy ion detection and radiation damage diagnostics in diamond
LGAD technology for heavy ion detection and radiation damage diagnostics in diamond Open
We present the application of LGAD technology for time-of-flight measurements of heavy ions and for precise diagnostics of radiation damage in diamond sensors. The polycrystalline CVD (pcCVD) diamond sensor used in this work was irradiated…
View article: Exploring offline pileup correction to improve the accuracy of microdosimetric characterization in clinical ion beams
Exploring offline pileup correction to improve the accuracy of microdosimetric characterization in clinical ion beams Open
Objective . Microdosimetry investigates the energy deposition of ionizing radiation at microscopic scales, beyond the assessment capabilities of macroscopic dosimetry. This contributes to an understanding of the biological response in radi…
Exploring Offline Pileup Correction to Improve the Accuracy of Microdosimetric Characterization in Clinical Ion Beams Open
Microdosimetry investigates the energy deposition of ionizing radiation at microscopic scales, beyond the assessment capabilities of macroscopic dosimetry. This contributes to an understanding of the biological response in radiobiology, ra…
First experimental time-of-flight-based proton radiography using low gain avalanche diodes Open
Objective. Ion computed tomography (iCT) is an imaging modality for the direct determination of the relative stopping power (RSP) distribution within a patient’s body. Usually, this is done by estimating the path and energy loss of ions tr…
First experimental time-of-flight-based proton radiography using low gain avalanche diodes Open
Ion computed tomography (iCT) is an imaging modality for the direct determination of the relative stopping power (RSP) distribution within a patient's body. Usually, this is done by estimating the path and energy loss of ions traversing th…
Novel ion imaging concept based on time-of-flight measurements with low gain avalanche detectors Open
Treatment planning in ion beam therapy requires accurate knowledge of the relative stopping power (RSP) distribution within the patient. Currently, RSP maps are obtained via conventional x-ray computed tomography (CT) by converting the mea…
A Proton Computed Tomography Demonstrator for Stopping Power Measurements Open
Particle therapy is an established method to treat deep-seated tumours using accelerator-produced ion beams. For treatment planning, the precise knowledge of the relative stopping power (RSP) within the patient is vital. Conversion errors …
Novel ion imaging concept based on time-of-flight measurements with low gain avalanche detectors Open
Treatment planning in ion beam therapy requires accurate knowledge of the relative stopping power (RSP) distribution within the patient. Currently, RSP maps are obtained via conventional x-ray computed tomography (CT) by converting the mea…
LGAD technology for HADES, accelerator and medical applications Open
Low Gain Avalanche Diode (LGAD) technology has been used to design and construct prototype and full-size beam detector systems for applications requiring simultaneous time and spatial precision. For these purposes, a dedicated LGAD strip s…
Feasibility study of a proton CT system based on 4D-tracking and residual energy determination via time-of-flight Open
Objective. For dose calculations in ion beam therapy, it is vital to accurately determine the relative stopping power (RSP) distribution within the treatment volume. A suitable imaging modality to achieve the required RSP accuracy is proto…
View article: Pionic hydrogen and deuterium
Pionic hydrogen and deuterium Open
The strong-interaction effects both in pionic hydrogen and deuterium atoms have been re-determined with improved precision. The hadronic shift and width in pionic hydrogen together with the hadronic shift in pionic deuterium constitute a o…
Feasibility study of a proton CT system based on 4D-tracking and residual energy determination via time-of-flight Open
For dose calculations in ion beam therapy, it is vital to accurately determine the relative stopping power (RSP) distribution within the treated volume. Currently, RSP values are extrapolated from Hounsfield units (HU), measured with x-ray…
A Proton Computed Tomography Demonstrator for Stopping Power Measurements Open
Particle therapy is an established method to treat deep-seated tumours using accelerator-produced ion beams. For treatment planning, the precise knowledge of the relative stopping power (RSP) within the patient is vital. Conversion errors …
Single particle tracking uncertainties in ion imaging Open
An extensive comparison of the path uncertainty in single particle tracking systems for ion imaging was carried out based on Monte Carlo simulations. The spatial resolution as function of system parameters such as geometry, detector proper…
Demonstrator for a Proton CT System at MedAustron Open
Ion beam therapy has become a frequently applied form of cancer therapy over the last years. The advantage of ion beam therapy over conventional radiotherapy using photons is the strongly localized dose deposition, leading to a reduction o…
A comprehensive characterization of the time resolution of the Philips Digital Photon Counter Open
Photodetectors with excellent time resolution are becoming increasingly important in many applications in medicine, high energy- and nuclear physics applications, biology, and material science. Silicon photomultipliers (SiPM) are a novel c…