نتایج جستجو برای: spectrometer

تعداد نتایج: 21758  

2016
V. G Ravindranath Preeti Hemnani

An FPGA based NQR spectrometer has been designed for detection of N nuclei. The digital circuits required for NQR spectrometer i.e Pulse Programmer, DDS, digital receiver have been built inside FPGA. Combining FPGA chip with analog components, NQR spectrometer has been developed. N from NaNO2 is observed using same spectrometer. By adding a permanent magnet of uniform field NMR signal of proton...

2017
Chih-Cheng Lu Kevin Chen H. T. Kung

Spectrometers are widely used for characterizing materials. Recently, filter-based spectrometers have been proposed to lower the manufacturing cost by replacing optical components with low-cost wavelength-selective filters, but at the expense of possibly lowered signal quality. We present compressive spectrometers which, based on the compressive sensing principle, are able to recover signal wit...

Journal: :The Review of scientific instruments 2012
Yoshihisa Harada Masaki Kobayashi Hideharu Niwa Yasunori Senba Haruhiko Ohashi Takashi Tokushima Yuka Horikawa Shik Shin Masaharu Oshima

An extremely high resolution flat field type slit less soft x-ray emission spectrometer has been designed and constructed for the long undulator beamline BL07LSU in SPring-8. By optimizing the ruling parameters of two cylindrical gratings, a high energy resolution ΔE < 100 meV and/or an E∕ΔE ~ 10 000 are expected for the energy range of 350 eV - 750 eV taking into account the broadening by the ...

1999
Joan Daemen

Dear, please find in attachment a public comment of the Rijndael team. We would appreciate it if you could confirm receipt of our comments? Thanks in advance.

Journal: :Journal of the American Society for Mass Spectrometry 2010

Journal: :Applied optics 2006
Omid Momtahan Chao Ray Hsieh Ali Adibi David J Brady

The analysis of a slitless volume holographic spectrometer is presented in detail. The spectrometer is based on a spherical beam volume hologram followed by a Fourier-transforming lens and a CCD. It is shown that the spectrometer is not sensitive to the incident angle of the input beam for the practical range of applications. A holographic spectrometer based on the conventional implementation i...

1999
Don B. Johnson

As announced by NIST, AES candidates will be evaluated on the criteria of security, cost (including performance and code size), and implementation characteristics such as flexibility and simplicity. This paper introduces the new term of “future resiliency” and proposes that NIST strive to ensure that the initial culling of the fifteen initial AES candidates to “about five” second round finalist...

Journal: :Physical review letters 2000
Abbott Ahmidouch Anklin Arvieux Ball Beedoe Beise Bimbot Boeglin Breuer Brindza Carlini Chant Danagoulian Dow Ducret Dunne Ewell Eyraud Furget Garcon Gilman Glashausser Gueye Gustafsson Hafidi

Tensor polarization observables ( t(20), t(21), and t(22)) have been measured in elastic electron-deuteron scattering for six values of momentum transfer between 0.66 and 1.7 (GeV/c)(2). The experiment was performed at the Jefferson Laboratory in Hall C using the electron High Momentum Spectrometer, a specially designed deuteron magnetic channel and the recoil deuteron polarimeter POLDER. The n...

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