نتایج جستجو برای: passive detectors

تعداد نتایج: 103230  

Journal: :Radiation protection dosimetry 2004
M Hajek T Berger N Vana

Evaluation of LiF:Mg,Ti thermoluminescence dosemeters (TLDs) according to the high-temperature ratio (HTR) method enables the determination of the dose-average linear energy transfer (LET), the mean quality factor and the dose equivalent in mixed radiation fields of unknown composition. The neutron contribution is assessed by the Extended Pair method calibrated in the CERN-EU High-Energy Refere...

2004
Dmitri Iazikov Christoph M. Greiner Thomas Mossberg

Recent advances in the development of two-dimensional holographic Bragg reflectors in planar lightwave circuits have demonstrated the feasibility of highly customizable multi-wavelength filters based on photonics nanostructures programmable to recognize spectra with up to 2000 spectral lines. Such filters rival or exceed performance of free space gratings, thin film filters and Bragg gratings a...

2014
Amy E. Lowitz Ari-David Brown Thomas R. Stevenson Peter T. Timbie Edward J. Wollack

Kinetic inductance detectors (KIDs) are a promising technology for low-noise, highly-multiplexible mmand submm-wave detection. KIDs have a number of advantages over other detector technologies, which make them an appealing option in the cosmic microwave background B-mode anisotropy search, including passive frequency domain multiplexing and relatively simple fabrication, but have suffered from ...

2006
Michael P. LARSSON Stepan LUCYSZYN

The formation of C60 nanowhiskers via the liquid-liquid interfacial precipitation technique presents a low-cost means of fabricating nanostructured fibres for use as active or passive elements in a number of possible applications. Recent measurements [9] have reported encouraging electrical characteristics that indicate the possibility of using C60 nanowhiskers to realise electronic devices wit...

2000

A passive diffusion method for the determination of radon concentration has been optimised and calibrated. The device consists of a scintillation vial containing activated charcoal, a diffusion barrier and a desiccant agent. The response to diverse atmospheric humidity and variable exposure intervals was studied. The result is a detector independent of atmospheric humidity till 7 days of exposu...

2008
Akira Fujimaki Takahiro Yamada Masamitsu Tanaka Hiroyuki Akaike Nobuyuki Yoshikawa Hirotaka Terai Shinichi Yorozu

We describe recent topics of rapid-single-flux-quantum (RSFQ) circuits. Much higher integration and higher-speed operation are required for commercializing the RSFQ circuits in any application. To satisfy this requirement, we measure several kinds of time fluctuations that possibly limit the integration level and operating speed, and introduce the flexible passive transmission line technology i...

and A. Sheikhi, M. Farzan Sabahi, M. Modarres Hashemi,

In this paper, radar detection based on Monte Carlo sampling is studied. Two detectors based on Importance Sampling are presented. In these detectors, called Particle Detector, the approximated likelihood ratio is calculated by Monte Carlo sampling. In the first detector, the unknown parameters are first estimated and are substituted in the likelihood ratio (like the GLRT method). In the sec...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1391

résumé: l’étude contrastive, sur laquelle ce travail de recherche a été basé, balise le terrain pour une étude méthodologique des langues et elle offre également de nouvel horizon pour l’apprentissage d’une langue seconde. dans ce travail de recherche, une comparaison méthodique entre les notions et les emplois du passif en persan et en français a été faite. cette recherche a pour objectif ...

Journal: :Journal of Astronomical Telescopes, Instruments, and Systems 2023

Both active and passive magnetic shielding have been used extensively during past current X-ray astronomy missions to shield detectors from soft protons electrons entering through telescope optics. However, simulations performed throughout the decade discovered that a significant proportion of X-ray-like background originates secondary produced in spacecraft surrounding detectors, which hit iso...

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