Zobrazeno 1 - 10
of 21
pro vyhledávání: '"John L. A. Fordham"'
Autor:
David A. Isenberg, Francis Gabriel, Marlene Swana, John L. A. Fordham, Jeffrey D. McBride, Ivan M. Roitt, Gabriela Barcenas-Morales, Peter J. Delves, Torsten Kolind, Ian A. Cree, Torben Lund
Publikováno v:
Clinical Chemistry. 54:883-890
Background: We developed a cost-efficient modular system for multiplex analysis of the multiple autoantibodies that characterize systemic rheumatoid diseases. Methods: The nanodot array luminometric immunoassay (NALIA) system consists of conventional
Autor:
A. Carraminana, R. Much, John L. A. Fordham, Susan Wyckoff, Peter Wehinger, N. Vranesevic, Raul Michel
Publikováno v:
The Astrophysical Journal. 581:485-494
High time resolution spectroscopic imaging of the Crab pulsar across the optical wave band has been undertaken utilizing the 4 m Mayall telescope at Kitt Peak National Observatory. The 33.51 ms period of the pulsar was split into 723.7 time slices of
Autor:
William C. Priedhorsky, Philip J. Smith, M. Carter, R. Much, J. A. Kennea, F. A. Cordova, John L. A. Fordham, T. Sasseen, H. Huckle, Dirk Pandel, Jean-Marie Vreux, K. O. Mason, A. A. Breeveld, Cheng Ho, T. Kennedy, R. Shirey, Mark Cropper, H. Kawakami, J. P. D. Mittaz
Publikováno v:
Astronomy & Astrophysics. 365:L36-L44
The XMM-OM instrument extends the spectral coverage of the XMM-Newton observatory into the ultraviolet and optical range. It provides imaging and time-resolved data on targets simultaneously with observations in the EPIC and RGS. It also has the abil
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 312:83-88
The bright limit to the dynamic range of intensified CCD photon-counting detectors is governed by coincidence losses. In this paper a theoretical analysis of the loss mechanisms is carried out and verified using laboratory data. For applications wher
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 292:611-620
The image quality obtained with high-resolution, CCD readout photon-counting detectors can be greatly affected by an image modulation or fixed pattern noise that results from errors in centroiding. In this paper we study the factors that contribute t
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 348:707-712
High resolution, CCD readout, photon counting detectors employ simple centroiding algorithms for defining the spatial position of each detected event. The accuracy of centroiding is very dependent upon a number of parameters including the profile, en
Publikováno v:
AIP Conference Proceedings.
The Electron Multiplying CCD (EMCCD) astronomical camera, under development at the Institute of Astronomy UNAM, will be able to obtain images of faint optical objects with very low instrumental noise and short integration times. The EMCCD is a normal
Publikováno v:
SPIE Proceedings.
Micro-channel plate (MCP) based "Generation 2" image intensifiers are used for initial photon detection and amplification in modern photon counting detectors in astronomy. Input photons initially create photo-electrons in a photocathode. Each photo-e
Autor:
Nino Porakishvili, Marie Charrel, Ivan M. Roitt, Torben Lund, Peter J. Delves, John L. A. Fordham
Publikováno v:
Journal of immunological methods. 234(1-2)
We have designed a simple luminometer based on a reasonably priced Peltier-cooled charge-coupled device (CCD) camera, housed in a light-tight box, with straightforward lens imaging and a simple platform for a microtitre or other assay format. The qua
Autor:
Iain G. Butler, Robert J. Airey, John L. A. Fordham, B. L. Morgan, David A. Bone, R. M. Michel-Murillo, T. J. Norton
Publikováno v:
SPIE Proceedings.
A 75 mm diameter microchannel plate (MCP) intensifier has been developed for astronomical applications. The intensifier incorporates a semi-transparent photocathode, three MCPs in a Z- stack configuration, and a P20 phosphor screen in a dual proximit