نتایج جستجو برای: lso
تعداد نتایج: 647 فیلتر نتایج به سال:
We recently developed several versions of a multimodal adaptive optics (AO) retinal imager, which includes highresolution scanning laser ophthalmoscopy (SLO) and Fourier domain optical coherence tomography (FDOCT) imaging channels as well as an auxiliary wide-field line scanning ophthalmoscope (LSO). Some versions have also been equipped with a fluorescence channel and a retinal tracker. We des...
this article is intended to provide an overview of various aspects of clinical pet/ct. these include discussions of: (i) important areas of clinical application; (ii) opportunities in clinical research; (iii) scanner and operating-mode considerations (e.g. bgo vs. lso, lyso or gso scanners, 2d vs. 3d imaging). (iv) study-specific considerations (e.g. patient preparation and positioning issues, ...
In order to provide sufficient flexibility for patient positioning at the Heidelberg charged hadron tumour treatment facility, γ-ray detectors with large sensitive area and small volume are highly desirable for the positron camera to combine with a rotating beam delivery (gantry). Photon detector technology yields increasingly more compact PET-detectors consisting of inorganic scintillators, e....
Introduction: In this study, we utilized the MCNP4C Monte Carlo code to quantitatively evaluate the influence of crystal size and material on intercrystal scatter and parallax effects. Materials and Methods: For each of the 5 selected crystals (BGO, LSO, LYSO, LuAP, GSO), transport of 511 keV photons originating from a point source and incident on the central cry...
Lion swarm optimization (LSO) inspired by the natural division of labor among lion king, lionesses and cubs in a group, i.e., king guarding, hunting following, is relatively novel intelligent technique. Due to its remarkable performance, canonical LSO has been extensively researched. However, how balance contradictions between exploration exploitation alleviate premature convergence are two cri...
PURPOSE The authors' laboratory is developing a dual-panel, breast-dedicated PET system. The detector panels are built from dual-LSO-position-sensitive avalanche photodiode (PSAPD) modules-units holding two 8 x 8 arrays of 1 mm3 LSO crystals, where each array is coupled to a PSAPD. When stacked to form an imaging volume, these modules are capable of recording the 3-D coordinates of individual i...
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