The microdosimetric one-hit detector model for calculating the response of solid state detectors |
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| Institution: | 1. Department of Radiotherapy and Radiooncology, University Hospital Goettingen, Goettingen, Germany;2. Department of Radiotherapy and Radiooncology, Clinic Dr. Hancken Stade, Stade, Germany;1. Department of Radiation Oncology, Hospital of The University of Pennsylvania, Philadelphia, PA, USA;2. Department of Atomic, Molecular and Nuclear Physics, Universidad de Sevilla, Seville, Spain;1. INFN Laboratori Nazionali di Legnaro, viale dell’Università 2, 35020 Legnaro, Italy;2. Belgian Nuclear Research Centre, SCK·CEN, Boeretang 200, 2400 Mol, Belgium;3. UHasselt, Faculty of Engineering Technology, Centre for Environmental Sciences, Nuclear Technology Center, Agoralaan, 3590 Diepenbeek, Belgium;4. INFN Laboratori Nazionali del Sud, via S. Sofia 62, 95123 Catania, Italy;1. Dipartimento di Fisica e Chimica, Università di Palermo, Viale delle Scienze, Edificio 18, 90128 Palermo, Italy;2. Gruppo V Sezione INFN di Catania, Via Santa Sofia, 64, 95123 Catania, Italy;3. EBG MedAustron GmbH, Marie Curie-Straße 5, A-2700 Wiener Neustadt, Austria;4. Laboratorio PH3DRA, Dipartimento di Fisica e Astronomia, Università di Catania, Via Santa Sofia 64, 95123 Catania, Italy;5. Center for Proton Therapy, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland;1. Dipartimento di Fisica e Chimica, Università di Palermo, Viale delle Scienze, Edificio 18, 90128 Palermo, Italy;2. Istituto Nazionale di Fisica Nucleare, Gruppo V Sezione di Catania, Via Santa Sofia, 64, 95123 Catania, Italy;3. Istituto di Bioimmagini e Fisiologia Molecolare – Consiglio Nazionale delle Ricverche – Laboratorio di Tecnologie Oncologiche, Cefalù, Italy;4. Laboratorio PH3DRA, Dipartimento di Fisica e Astronomia, Università di Catania, Via Santa Sofia 64, 95123 Catania, Italy;5. EBG MedAustron GmbH, Marie Curie-Straße 5, A-2700 Wiener Neustadt, Austria |
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| Abstract: | The microdosimetric one-hit detector model has been developed and applied to calculate the dose response, energy response and relative efficiency of thermoluminescent LiF:Mg,Cu,P and CaF2:Tm detectors, and of the free-radical alanine dosimeter, after their exposure to radiation of different quality. The one-hit detector is described by two model parameters: the target diameter, d and the saturation parameter, α. Combining these parameters with microdosimetric distributions in nanometer-size targets calculated using Monte Carlo track structure codes TRION and MOCA-14, it was possible to describe and predict a great variety of experimental data for photon, X-ray, beta-electron, proton, alpha-particles and heavy ion irradiation. Within the framework of this biophysical model of radiation action, some mechanistic insight into the physics of radiation action in solid state detectors can be obtained. |
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