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Nuclear Science, IEEE Transactions on

Issue 3  Part 1 • Date June 2003

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Displaying Results 1 - 4 of 4
  • 2001 Nuclear Science Symposium, Room-temperature Semiconductor Detectors Workshop, And Symposium On Nuclear Power Systems

    Page(s): c1
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    Freely Available from IEEE
  • Measurement of the depth of interaction of an LSO scintillator using a planar process APD

    Page(s): 307 - 312
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (315 KB) |  | HTML iconHTML  

    The authors have evaluated the performance of an avalanche photodiodes (APD)/lutetium oxyorthosilicate (LSO) module for use in positron emission tomography systems. They have used a recently developed APD detector in combination with a 3 × 3 × 30 mm3 LSO scintillator to measure the depth of interaction of 511 keV photons from a 22Na source. The detectors were built using standard planar technology for silicon devices. Photodiodes with 3 mm diameter active area have been produced by deep boron diffusion, followed by shallow boron and phosphor diffusion. Because the structure has not been optimized yet, the authors only obtained a gain of 6 at 1300 V. A simple noise analysis of the detector characteristics indicate that they are still capable of measuring 511 keV photons with sufficient energy resolution for depth of interaction position measurement from a long LSO scintillator. View full abstract»

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  • A new X-ray scintillator for digital radiography

    Page(s): 297 - 300
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    The authors report a new scintillator based on a transparent ceramic of Lu2O3:Eu. The material has an extremely high density of 9.4 g/cm3 and a light output comparable to CsI:Tl. Its narrow-band emission at 610 nm perfectly matches the spectral response of charge coupled devices (CCDs). To enhance the spatial and contrast resolution, the authors have developed a special process to pixelate the scintillator and prevent the spread of light within the scintillator volume. The imaging performance of this pixelated device was evaluated using a thermoelectrically cooled CCD camera. The new scintillator is expected to play a major role in digital radiographic systems when readout technologies capable of taking advantage of the transparency are developed further. View full abstract»

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  • A self-triggering silicon-tracking telescope for spectator proton detection

    Page(s): 301 - 306
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (576 KB) |  | HTML iconHTML  

    With the ANKE spectrometer at the COoler SYnchrotron COSY Juelich the mesonic structure of the nucleon will be studied in polarized proton-proton and proton-deuteron collisions. The identification and tracking of low energy protons permits using deuterium as an effective neutron target. For this purpose, modular self-triggering tracking telescopes built up by double-sided silicon strip detectors inside the accelerator ultra-high vacuum have been developed. Their basic features are ΔE/E proton identification from 2.5 $40 MeV and particle tracking over a wide dynamic range, either 2.5 MeV spectator protons or minimum ionizing particles. By the use of self-triggering read-out chips, the telescopes identify a particle passage within 100 ns and therefore allow the possibility of a fast hit pattern recognition. In combination with a read-out pitch of ∼200 μm, they provide a high rate capability. The recent development of very thick (≥5 mm) double-sided microstructured Si(Li) and very thin (≤65 μm) double-sided Si-detectors provides the use of the telescopes over a wide range of particle energies. View full abstract»

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Aims & Scope

IEEE Transactions on Nuclear Science focuses on all aspects of the theory and applications of nuclear science and engineering, including instrumentation for the detection and measurement of ionizing radiation; particle accelerators and their controls; nuclear medicine and its application; effects of radiation on materials, components, and systems; reactor instrumentation and controls; and measurement of radiation in space.

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