نتایج جستجو برای: 39 solid state detector
تعداد نتایج: 1144358 فیلتر نتایج به سال:
introduction: male urethral stricture is a complicated urologic disease that could be successfully treated using internal urethrotomy. laser internal urethrotomy has been used in many cases with favorable outcome in many studies. holmium: yag laser with its incisional properties on tissue is one of the laser types applied for internal urethrotomy. methods: we present a 19 year-old male with his...
The radial distribution of track density on a solid-state nuclear track detector inside a diffusion chamber is a function of the fraction f of Po decay before deposition. In the present work, procedures are proposed to determine f experimentally by determining the track density distribution on an LR115 detector in a diffusion chamber. First, a relatively tall diffusion chamber, with a height of...
The Backward Silicon Tracker of the H1 experiment is being used in conjunction with a lead-fiber Calorimeter for detailed investigations of inclusive deeply inelastic scattering of leptons from protons, e±P → e±X, and of charm production at small values of the Bjorken variable x, x ≤ 10−3. In this thesis the development of a trigger for the Backward Silicon Tracker is described. The detector wa...
A recoil detector for the measurement of antiproton-proton elastic scattering at angles close to 90◦
The design and construction of a recoil detector for the measurement of recoil protons of antiproton-proton elastic scattering at scattering angles close to 90◦ are described. The performance of the recoil detector has been tested in the laboratory with radioactive sources and at COSY with proton beams by measuring proton-proton elastic scattering. The results of laboratory tests and commission...
The hybrid structure of solid-state pixel detector has a semiconductor sensor that converts the X-ray photons to electric pulses, and an electronics chip that processes and stores the signals. The signals are transferred from the sensor chip to the electronic chip through metallic bump bonds, one per pixel. Image quality parameters have to be assessed in order to estimate the imaging capabiliti...
The development of a large size gaseous detector of single photons, able to stably operate at high gain and high rate, and to provide good time resolution and insensitivity to magnetic field would be beneficial to future Cherenkov Imaging Counters. The detector could be based on the use of a multilayer architecture of THGEM electron multipliers coupled to a solid state CsI photocathode. A syste...
background bleaching of traumatized discolored teeth is considered an important issue in esthetic dentistry. various methods have been introduced for bleaching, some of which may have adverse effects on soft or hard tissues of the tooth. objectives the objective of the study was to evaluate the effects of ktp laser bleaching on enamel of traumatized teeth. materials and methods a square of 36 m...
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