Zobrazeno 1 - 10
of 127
pro vyhledávání: '"Schug, David"'
In PET a high percentage of gamma photons being detected undergo Compton scattering in the scintillator. Scintillator blocks are often built from optically isolated crystals. Depending on the angle of incidence and the scintillator geometry this migh
Externí odkaz:
http://arxiv.org/abs/2310.20542
Autor:
Kuhl, Yannick, Mueller, Florian, Naunheim, Stephan, Bovelett, Matthias, Lambertus, Janko, Schug, David, Weissler, Bjoern, Gegenmantel, Eike, Gebhardt, Pierre, Schulz, Volkmar
Preclinical research and organ-dedicated applications require high-resolution positron emission tomography (PET) detectors to visualize small structures and understand biological processes at a finer level of detail. Current commercial systems often
Externí odkaz:
http://arxiv.org/abs/2310.16728
Autor:
Hetzel, Ronja, Urbanevych, Vitalii, Bolke, Andreas, Kasper, Jonas, Kołodziej, Magdalena, Kercz, Monika, Magiera, Andrzej, Mueller, Florian, Müller, Sara, Rafecas, Magdalena, Rusiecka, Katarzyna, Schug, David, Schulz, Volkmar, Stahl, Achim, Weissler, Bjoern, Wong, Ming-Liang, Wrońska, Aleksandra
Objective. Prompt-gamma imaging encompasses several approaches for online monitoring of beam range or deposited dose distribution in proton therapy. We test one of the imaging techniques - a coded mask approach - both experimentally and via simulatio
Externí odkaz:
http://arxiv.org/abs/2307.01203
Artificial intelligence (AI) is entering medical imaging, mainly enhancing image reconstruction. Nevertheless, improvements throughout the entire processing, from signal detection to computation, potentially offer significant benefits. This work pres
Externí odkaz:
http://arxiv.org/abs/2302.01681
Autor:
Yin-Grossmann, Emilia Laiyin, Mueller, Florian, Kuhl, Yannick, Schrank, Franziska, Naunheim, Stephan, Schug, David, Schulz, Volkmar
The integration of PET into MRI to form a hybrid system requires often compromises for both subsystems. For example, the integration might come at the cost of a reduced PET detector height or a reduced MRI examination volume diameter. Here, we propos
Externí odkaz:
http://arxiv.org/abs/2208.10216
Autor:
Mueller, Florian, Naunheim, Stephan, Kuhl, Yannick, Schug, David, Solf, Torsten, Schulz, Volkmar
Publikováno v:
Med Phys. 2022; 1- 20
Current clinical PET systems utilize detectors where the scintillator typically contains single elements of 3 - 6 mm width and about 20 mm height. While providing good TOF performance, this design limits the spatial resolution and causes radial astig
Externí odkaz:
http://arxiv.org/abs/2203.02535
Aiming to measure the difference in arrival times of two coincident gamma-photons with an accuracy in the order of 200 ps, time-of-flight positron emission tomography systems commonly employ silicon photomultipliers (SiPMs) and high-resolution digiti
Externí odkaz:
http://arxiv.org/abs/1911.08156
Publikováno v:
EJNMMI Phys 7, 12 (2020)
The National Electrical Manufacturers Association's (NEMA) NU 4-2008 standard specifies methodology for evaluating the performance of small-animal PET scanners. The standard's goal is to enable comparison of different PET scanners over a wide range o
Externí odkaz:
http://arxiv.org/abs/1910.12070
Publikováno v:
IEEE Transactions on Radiation and Plasma Medical Sciences 2020
In state-of-the-art positron emission (PET) tomography systems, application-specific integrated circuits (ASICs)are commonly used to precisely digitize the signals of analog silicon photo-multipliers (SiPMs). However, when operating PET electronics i
Externí odkaz:
http://arxiv.org/abs/1908.05878
Publikováno v:
IEEE TRANSACTIONS ON RADIATION AND PLASMA MEDICAL SCIENCES, 2018
Monolithic crystals are examined as an alternative to segmented scintillator arrays in positron emission tomography (PET). Monoliths provide good energy, timing and spatial resolution including intrinsic depth of interaction (DOI) encoding. DOI allow
Externí odkaz:
http://arxiv.org/abs/1808.06385