نتایج جستجو برای: air detector
تعداد نتایج: 262577 فیلتر نتایج به سال:
A simple model is developed which predicts the average number of multi-TeV muons produced in cosmic ray air showers. The model also give the approximate rates at which different numbers of muons reach a detector's depth. The dependences of the rates on zenith angle, detector depth, primary spectrum and composition, and interaction properties are given. The results are briefly discussed in terms...
The high resolution Fly’s Eye (HiRes) detector in Dugway, Utah, is an air fluorescence detector designed for the measurement of the energy and arrival direction of cosmic ray particles with energy E > 10 eV. HiRes monitors the night sky for fluorescence light from air shower cascades induced by cosmic ray primaries. The light is collected by mirrors and projected onto arrays of photomultiplier ...
Due to their small collecting volume, diodes are commonly used in small field dosimetry. However, the relative sensitivity of a diode increases with decreasing small field size. Conversely, small air gaps have been shown to cause a significant decrease in the sensitivity of a detector as the field size is decreased. Therefore, this study uses Monte Carlo simulations to look at introducing air u...
Galactic cosmic rays are investigated with complementary techniques above the atmosphere and on ground. Recent results of two experiments, the TRACER balloon experiment and the KASCADE air-shower detector are discussed. 2006 COSPAR. Published by Elsevier Ltd. All rights reserved.
Introduction & Objective: Benzene is one of the most common volatile organic compounds in the indoor and outdoor environments that has always been considered as one of the causes of air pollution. Thus before being discharged to the environment, it must be treated from pol-luted air stream. The aim of this study was to determine the efficiency of catalytic ozonation process with carbosieve in...
Doses for panoramic dental radiography are assessed in terms of the dose-width product (DWP) or dose-area product, which gives a measure of the radiation through a whole exposure. The DWP can be measured using a pencil ionisation chamber (IC) similar to that used for computed tomography dose assessment. However, ICs are sensitive to radiation incident from all directions and so backscatter from...
A generically applicable hybrid MultiUser Detector (MUD) concept is proposed by appropriately activating different MUDs in consecutive turbo iterations based on the Mutual Information (MI) gain. It is demonstrated that the proposed hybrid MUD is capable of approaching the optimal Bayesian MUD’s performance despite its reduced complexity, which is at a modestly increased complexity in comparison...
We propose a two stage detector consisting of a Subspace Detector (SD) followed by the Whitened Adaptive Beamformer Orthogonal Rejection Test (W-ABORT). The performance analysis shows that it possesses the Constant False Alarm Rate property with respect to the unknown covariance matrix of the noise and that it guarantees a wider range of directivity values with respect to previously proposed tw...
Air embolism can be a potentially fatal complication of surgical procedures when air or sub-atmospheric is introduced under pressure into a body cavity. For the diagnosis and the treatment of air embolism quickly and efficiently, we have developed the air detector using microstructure capacitive sensor. The sensor consists of micro-channel on Pyrex 7740 glass with upper and lower electrodes whi...
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