Conveners
Poster Mini Talks V
- Valeria Rosso (Physics Department and INFN, Pisa, Italy)
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Dr Jan Jakubek (IEAP, CTU in Prague)05/07/2011, 12:45ApplicationsPoster presentationIon beam therapy is a rapidly developing method for treatment of certain types of cancer. A main advantage of ions is that they deposit most of the energy at the end of their range according to the Bragg curve. Unfortunately, the ion beam often generates (by various mechanisms such as fragmentation) a substantial amount of secondary particles with longer range (protons and other light...Go to contribution page
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Ms silvia cipiccia (strathclyde university)05/07/2011, 12:46ApplicationsPoster presentationBetatron radiation emitted by electrons accelerated in a laser plasma wakefield accelerator is a promising bright ultra-compact light source. The presence of the electromagnetic field of the laser in the accelerator can dramatically change the electron motion with an emission from soft-x-rays to gamma-rays. We studied the radiation properties in single-shot experiment using two different...Go to contribution page
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Mr Filipe Castro (Universidade de Aveiro)05/07/2011, 12:47ApplicationsPoster presentationWe are studying and developing a gamma camera based on optical fibers coupled to both sides of inorganic scintillation crystals and using for the light readout highly sensitive photodetectors, namely silicon photomultipliers (SiPMs) and high efficiency multi-anode photomultiplier tubes (MaPMTs). The coupling of the fibers in orthogonal directions allows obtaining 2D position information, while...Go to contribution page
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Mr Jiri Dammer (IEAP CTU in Prague)05/07/2011, 12:48ApplicationsPoster presentationMicro-radiography is an imaging technique using X-rays in the studies of internal structures of objects. This fast and easy imaging tool is based on differential X-ray attenuation by various tissues and structures within the biological sample. The non-absorbed radiation is detected with a suitable detector and creates a radiographic image. In order to detect the differential properties of...Go to contribution page
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Dr Bo Kyung Cha (KERI(Korea Electrotechnology Research Institute))05/07/2011, 12:49ApplicationsPoster presentationA variety of digital mammography detectors are currently used in the early diagnosis of a breast tumor and cancer. Direct conversion method with amorphous selenium and indirect detection type such as amorphous silicon (a-Si) flat panel arrays (TFT), CCDs with scintillation materials have been widely employed as an X-ray image sensor in clinical use for several years. More recently, CMOS...Go to contribution page
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Mr Franz Michael Epple (TU Munich, Biomedical Physics E17)05/07/2011, 12:50ApplicationsPoster presentationPhase contrast imaging shows promising improvements over absorption contrast imaging, especially when it comes to the discrimination of soft tissues. Grating interferometer based phase contrast imaging (GIBP) in particular allows the recording of the classical absorption signal as well as the complementary phase and dark field signals, making it a powerful diagnostic tool in medical...Go to contribution page
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Mr Cheol Ha Baek (Yonsei university)05/07/2011, 12:51ApplicationsPoster presentationThe new method to correct a parallax error and the loss of coincidence counts caused by the gap between modules was developed for a small animal PET. We proposed the TraPET scanner composed of 6 dual-layer phoswich detector modules. Each detector module consists of a 5.0 mm-thick trapezoidal-shaped monolithic LSO with a front face of 44.0 x 44.0 mm2 and a back face of 50.0 x 50.0 mm2 and a 25...Go to contribution page
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Mr Cheol-Ha Baek (Department of Radiological Science, College of Health Science, Yonsei University)05/07/2011, 12:52ApplicationsPoster presentationThe large-angle gamma camera was developed for imaging small animal models used in medical and biological research. In the simulation study, a large field of view (FOV) of this system provides higher sensitivity than typical pinhole gamma cameras by reducing the distance between the pinhole and the object. However, this gamma camera suffers from the degradation of the spatial resolution at the...Go to contribution page
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Dr Ondrej Jirousek (Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic)05/07/2011, 12:53ApplicationsPoster presentationX-ray microradiography was employed to quantify the strains in loaded human trabecula. Samples of isolated trabeculae (n=6) from human proximal femur were extracted and glued in a loading machine specially designed and manufactured for the purpose. The samples were then tested in tension (n=3) and three-point bending test (n=3) until complete fracture of the specimen. To assess the deformation...Go to contribution page
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Dr Carlos Granja (Institute of Experimental and Applied Physics, Czech Technical University in Prague, Horska 3a/22, 12800 Prague 2, Czech Republic)05/07/2011, 12:54ApplicationsPoster presentationLaser driven accelerated (LDA) particle beams have due to the unique acceleration process very special properties. In particular they are created in ultra-short bunches of high intensity typically up to 10^9 particles/cm²/ns. Characterization of these beams is very limited with conventional particle detectors especially with non-electronic detectors like radiochromic films, imaging plates or...Go to contribution page
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Ms Bernadette Hartmann (German Cancer Research Center (DKFZ))05/07/2011, 12:55ApplicationsPoster presentationIn radiation therapy with ions heavier than protons nuclear fragmentation processes occur. Interactions of the projectile ions with tissue result in a spectrum of lighter ions which have a linear energy transfer and thus a radiobiological effectiveness different from the primary particle type. In order to correctly calculate the biological effect of ion beams it is important to know the...Go to contribution page
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Mr Ali Abboud (Student)05/07/2011, 12:56ApplicationsPoster presentationDevelopments in synchrotron radiation facilities have provided photon fluxes in the order of 1014 photons/sec and higher. To utilize such high fluxes in particular experiments it is important to provide detectors that handle such fluxes, operate with fast frame rates and resolve at the same time events in the spatial coordinates with reasonable energy resolution. This study characterizes a...Go to contribution page
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Prof. Tzung-Chi Huang (China Medical University)05/07/2011, 12:57ApplicationsPoster presentationThe aim of this study is to evaluate the feasibility of using MAGAT as a near real-time 3-dimensional dose measurement device for tomotherapy. MAGAT is a new type of normoxic polymer gel dosimeter, which responses well to absorbed dose and can be easily made in the presence of normal oxygen surroundings. Its dose response was measured by irradiating MAGAT-gel-filled testing vials with...Go to contribution page