Th. Haberer

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The Heavy Ion Cancer Therapy Facility HICAT [1] proposed for the clinic in Heidelberg will contain three treatment rooms one treatment room will be equipped with a fixed horizontal beam line and two treatment rooms will contain heavy ion gantries. In parallel to the design of the accelerator facility, the heavy ion gantries were subject of detailed studies(More)
These innovations have been the result of a long standing research and development in radiobiological and physical experiments, design and construction of a dedicated fast magnetic deflection system and its electronic control , treatment planning and accelerator developments. From the beginning of the pilot project all these innovations were available and(More)
In the heavy ion therapy project at GSI a C ion beam is used to apply extremely volume conformal dose distributions to cancer patients. Volume conformity means that the dose distribution is shaped precisely to the contours of the tumour taking into account all medical needs. This is achieved by dividing the target volume into small subvolumes (voxels) and(More)
The micro-structure of carbon ion beams was measured in the energy range of therapeutic interest after knock-out extraction, which will be established at the upcoming ion beam facility in Heidelberg. The measured widths of the beam bunches were compared with those obtained after the slow resonant extraction technique, which is currently used at GSI for ion(More)
By dividing the 3D extended target volume into several thousand small, consecutively irradiated volume elements (voxels), intensity modulated heavy ion therapy achieves an excellent conformity for immobilized tumors. But any motion of the target region during the treatment interferes with the scanning path of the beam, leading to significant distortions in(More)
During the last four years GSI has developed a procedure for cancer treatment by means of the intensity controlled rasterscan-method. This method includes active variations of beam parameters during the treatment session and the integration of ’on-line’ PET monitoring. Starting in 1997 several patients have been successfully treated within this GSI(More)
minor repositioning errors in connection with sharp density gradients in the beam path or changes in the physical condition of the patient. To quantify such deviations from PET data, improved attenuation, scatter [2] and random [3] correction methods for the measured data as well as refined models (positron range, photon scattering) for predicting the(More)
Target motion is a very big problem in conformal radiotherapy (CRT), especiallly for a charged particle beam because of its less lateral scattering and sharp Bragg peak. In the pilot project of the heavy-ion cancer therapy at GSI, patients with head and neck tumors are treated with a magnetic raster scanner[1]. However, if the raster scanner is used to(More)
Low-grade glioma (LGG) is a very common brain tumor in pediatric patients typically associated with a very good prognosis. This prognosis makes it imperative that the risk of long-term treatment-related side effects be kept at an absolute minimum. Proton therapy (PRT) provides a radiation technique that has the potential to further reduce the genesis of(More)