نتایج جستجو برای: bgo
تعداد نتایج: 257 فیلتر نتایج به سال:
Bremsstrahlung was measured as a function of stored beam current using the BGO scintillation spectrometer at the compact superconducting storage ring of Ritsumeikan University. Bremsstrahlung is emitted for collision of stored electrons and residual gas on the beam orbit. Yield of bremsstrahlung depend on stored beam current and residual gas density. We tried to determine gas density on the bea...
In time-of-flight positron emission tomography (TOF-PET), the timing capabilities of scintillation-based detector play an important role. An approach for fast is using so-called metascintillators, which combine two materials leading to synergistic blending their favorable characteristics. added effect BGO-based metascintillators taking advantage better transportation Cherenkov photons through U...
A space-variant optical correlator is proposed on the basis of the fractional Fourier transform. The optical device uses as a recording medium for the holographic filter a photorefractive Bi(12)GeO(2) (BGO) crystal. The experimental results confirm the shift-variance properties. Some limitations that arise from the volume diffraction are also considered.
We report on ABB’s fiber-optic current and voltage transducers and their applications in high-voltage substations. We consider bulk-optics and all-fiber current sensors and voltage sensors that exploit the electro-optic effect in BGO and the piezo-electric effect in quartz.
Emerging applications for positron emission tomography (PET) may require the ability to image very low activity source distributions in the body. The performance of clinical PET scanners in the regime where activity in the field of view is <1 MBq has not previously been explored. In this study, we compared the counting rate performance of two clinical PET/CT scanners, the Siemens Biograph Revea...
A very high resolution positron emission tomography (PET) scanner for small animal imaging based on the idea of inserting a ring of high-granularity solid-state detectors into a conventional PET scanner is under investigation. A particularly interesting configuration of this concept, which takes the form of a degenerate Compton camera, is shown capable of providing sub-millimeter resolution wit...
Bio-reduction of composite materials is the modern approach to facilitate researchers avoid toxic chemical exposure during reduction process. In this study, green graphene oxide using Abutilon indicum (Tamil name: Thuthi) plant leaves extracted from various solvents were used as filler material (0.3, 0.6 and 1 wt.%) in glass fibre epoxy composite. Compression moulding process was adopted fabric...
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