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Effects Of Secondary Electron Emission On Charge Pulses From A Z-Stack Microchnnel Plate Photon Counting Detector With A Crossed Delay Line Anode Readout, Alan W. Bird Jan 1999

Effects Of Secondary Electron Emission On Charge Pulses From A Z-Stack Microchnnel Plate Photon Counting Detector With A Crossed Delay Line Anode Readout, Alan W. Bird

Space Dynamics Laboratory Publications

A study of the effects of secondary electron emission on charge pulses from a microchannel plate (MCPs) photon counting detector with crossed delay line (CDL) anode readout is presented. The detector is a two-dimensional photon counting detector with fast count rate and good spatial resolution being developed at Los Alamos National Laboratory. The CDL anode is constructed of two orthogonal planar pairs of helically wound wires on inner and outer ceramic sides attached to a copper ground plane. The electron cloud event from the MCPs interacts with the wires generating a signal pulse. The electrons that strike the wire with …


Demonstration Of Literal Three-Dimensional Imaging, Cheng Ho, Kevin L. Albright, Alan W. Bird, Jeffrey Bradley, Donald E. Casperson, Miles Hindman, William C. Priedhorsky, W. Robert Scarlett, R. Clayton Smith, James Theiler, S. Kerry Wilson Jan 1999

Demonstration Of Literal Three-Dimensional Imaging, Cheng Ho, Kevin L. Albright, Alan W. Bird, Jeffrey Bradley, Donald E. Casperson, Miles Hindman, William C. Priedhorsky, W. Robert Scarlett, R. Clayton Smith, James Theiler, S. Kerry Wilson

Space Dynamics Laboratory Publications

In a recent paper a new technique was proposed for remote ranging and topographical mapping by using a system with a single-photon-counting detector and a low-power pulsed laser @Appl. Opt. 35, 441 ~1996!#. We report on the results from the laboratory and the field demonstration of this literal three-dimensional imaging technique. Using a detector system developed at Los Alamos with a commercial pulsed laser and observing from a single remote vantage point, we demonstrate use of this technique in the literal mapping of three-dimensional topography and the probing of a complex scene. With a reasonably short exposure this system can …


An Overview Of The Saber Experiment And Preliminary Calibration Results, J. M. Russell Iii, M. G. Mlynczak, L. L. Gordley, J. Tansock, R. Esplin Jan 1999

An Overview Of The Saber Experiment And Preliminary Calibration Results, J. M. Russell Iii, M. G. Mlynczak, L. L. Gordley, J. Tansock, R. Esplin

Space Dynamics Laboratory Publications

The Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) experiment is one of four experiments that will fly on the Thermosphere, Ionosphere, Mesosphere, Energetics, and Dynamics (TIMED) mission to be launched in May, 2000. The primary science goal of SABER is to achieve major advances in understanding the structure, energetics, chemistry, and dynamics, in the atmospheric region extending from 60 km to 1 80 km altitude. This will be accomplished using the space flight proven experiment approach of spectral broadband limb emission radiometry. SABER will scan the horizon in 10 selected bands ranging from 1.27 im to 17 tm …