67 Results for : scintillation

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    Engineering of Scintillation Materials and Radiation Technologies ab 138.99 € als pdf eBook: Proceedings of ISMART 2016. Aus dem Bereich: eBooks, Sachthemen & Ratgeber, Technik,
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    Engineering of Scintillation Materials and Radiation Technologies ab 117.49 € als pdf eBook: Selected Articles of ISMART2018. Aus dem Bereich: eBooks, Sachthemen & Ratgeber, Technik,
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    • Price: 117.49 EUR excl. shipping
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    Liquid Scintillation Counting Recent Applications and Development ab 54.99 € als pdf eBook: Sample Preparation And Applications. Aus dem Bereich: eBooks, Fachthemen & Wissenschaft, Wissenschaften allgemein,
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    The Theory and Practice of Scintillation Counting ab 70.99 € als pdf eBook: International Series of Monographs in Electronics and Instrumentation. Aus dem Bereich: eBooks, Sachthemen & Ratgeber, Technik,
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    The Theory of Scintillation with Applications in Remote Sensing ab 97.99 € als epub eBook: . Aus dem Bereich: eBooks, Sachthemen & Ratgeber, Technik,
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    Techniques of Sample Preraration for Liquid Scintillation Counting+Isoelectric Focusing ab 59.49 € als pdf eBook: . Aus dem Bereich: eBooks, Fachthemen & Wissenschaft, Wissenschaften allgemein,
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    • Price: 59.49 EUR excl. shipping
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    High throughput screening modeling ab 61.99 € als Taschenbuch: A scintillation proximity assay example. Aus dem Bereich: Bücher, Wissenschaft, Biologie,
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    Positron Emission Tomography (PET) is a key technique in the medical imaging area, which allows to diagnose the organism functions and to track the tumor changes. In PET measurement the patient is injected with radiotracer, containing a large number of metastable atoms of radionuclide, that emmits positrons. As the result of positron annihilation, the two photons travelling off with nearly opposite directions are produced and registered by detection system positioned so that it surrounds the patient body. State-of-the-art PET scanners use scintillation crystals which are characterized by high detection efficiency of annihilation photons. In this context, it is worth to mention that the Jagiellonian PET (J-PET) Collaboration developed a novel whole-body PET scanner based on plastic scintillators. They are much cheaper than crystal scintillators, which gives the opportunity to reduce the high cost of PET scanners and make them more affordable. However, plastic scintillators have much lower detection efficiency of gamma quanta compared to inorganic scintillation crystals. This can be compensated by increasing the scanner field of view and improving the time resolution in the measurement of the time of flight of gamma quanta. The J-PET scanner consists of plastic scintillator strips read out at both ends by a pair of photomultipliers and arranged axially around a cylindrical tomograph tunnel. The axial coordinate of the annihilation photon interaction point in the scintillator strip is derived from the difference of the light propagation time measured with the pair of photomultipliers. The operational principles of the J-PET scanner are similar to conventional tomographs, except that the highly accurate time information is of paramount importance. Therefore, the J-PET scanner demands a preparation of novel methods on each step of the data processing. The goal of the work presented in this dissertation is a development of the signal and image processing algorithms taking into account uniqueness of the J-PET detector. The proposed methods include: signal recovery based on samples of a waveform registered on photomultiplier output, reconstruction of position and time of interaction of annihilation photon in the scintillator strip, classification of PET events types and image reconstruction that operates exclusively in the image space. Due to the dissimilarity from the conventional PET scanners, majority of the methods presented in this dissertation are innovative solutions in digital signal and image processing in tomography.
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    Coronal Mass Ejections and Interplanetary Disturbances ab 54.99 € als Taschenbuch: A study using Interplanetary Scintillation Array at Rajkot India. Aus dem Bereich: Bücher, Wissenschaft, Physik,
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    Scintillators for Mixed Beam Dosimetry ab 48.99 € als Taschenbuch: Evaluation of Scintillation Detectors for Radiation Dose Measurements in Accelerator-based Boron Neutron Capture Therapy. Aus dem Bereich: Bücher, Wissenschaft, Physik,
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