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Your search keyword '"Russell, J J"' showing total 5 results
Start Over Author "Russell, J J" Publisher american institute of physics
5 results on '"Russell, J J"'

1. Investigation of threading dislocation blocking in strained-layer InGaAs/GaAs heterostructures using scanning cathodoluminescence microscopy.

Author

Russell, J. J., Zou, J. Zou, Moon, A. R., and Cockayne, D. J. H.

Subjects
*DISLOCATIONS in crystals, *HETEROSTRUCTURES
Abstract

Studies the theory of dislocation blocking in strained-layer heterostructures. Use of scanning cathodoluminescence microscopy techniques to image the misfit dislocations; Confirmation of the model proposed by L.B. Freund.

Published
2000
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5. The Trigger and Onboard Filter of the GLAST Large Area Telescope.

Author

Hughes, R., Grove, J. E., Kocian, M., Ritz, S., Russell, J. J., Siskind, E., Smith, P., Usher, T., and Winer, B.

Subjects
GAMMA ray bursts, COMPUTER simulation, COMPUTER-aided design, TELESCOPES, ELECTROMAGNETIC waves
Abstract

The GLAST Large Area Telescope (LAT) will measure the cosmic gamma-ray flux in the energy range 20 MeV to >300 GeV. The LAT will open a new and important window on a wide variety of high-energy phenomena. Achieving the capability requires a hardware trigger and onboard software event filters that are robust and highly efficient for gamma rays while remaining powerful rejecters of the much larger fluxes of charged-particle backgrounds. Because of the important discovery windows for science and the uncertainties in the background fluxes, configuration flexibility is a particularly important system feature. This paper describes the purposes and architecture of the system, the components and capabilities of the hardware trigger and onboard software filters, and the on-orbit operations plan and expected performance. © 2007 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2007
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