Richard D. Harriss

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Electron-multiplying charge-coupled devices (EM-CCDs) are used in low-light-level (L3) applications for detecting optical, ultraviolet, and near-infrared photons (10-1100 nm). The on-chip gain process is able to increase the detectability of any signal collected by the device through the multiplication of the signal before the output node. Thus, the(More)
Tropical soils are potentially the highest and least studied nitrous oxide (N2O) production areas in the world. The effect of water, nitrate and glucose additions on profile concentrations and episodic emissions of N2O for two volcanic soils in Costa Rica was examined. Magnitudes of episodic N2O pulses, as well as overall N2O emissions, varied considerably(More)
The use of electron-multiplying charge-coupled devices (CCDs) for high-resolution soft X-ray spectroscopy has been proposed in previous studies, and the analysis that followed experimentally identified and verified a modified Fano factor for X-ray detection using an <sup>55</sup>Fe X-ray source. However, further experiments with soft X-rays at 1000 eV were(More)
The Open University, in collaboration with e2v technologies and XCAM Ltd, have been selected to fly an EO (Earth Observation) technology demonstrator and in-orbit radiation damage characterisation instrument on board the UK Space Agency’s UKube-1 pilot Cubesat programme. Cubesat payloads offer a unique opportunity to rapidly build and fly space hardware for(More)
The Open University, in collaboration with e2v technologies Ltd and XCAM Ltd, have been selected to fly an experimental payload on board the UK Space Agency's UKube-1 pilot Cubesat programme. Cubesat payloads offer a unique opportunity to rapidly build and fly space hardware for minimal cost, providing easy access to the space environment. The proposed(More)
Harriss, R. D.; Holland, A. D.; Barber, S. J.; Karout, S.; Burgon, R.; Dryer, B. J.; Murray, N. J.; Hall, D. J.; Smith, P. H.; Greig, T.; Tutt, J. H.; Endicott, J.; Jerram, P.; Morris, D.; Robbins, M.; Prevost, V. and Holland, K. (2011). Compact CMOS camera demonstrator (C3D) for Ukube-1. In: UV/Optical/IR Space Telescopes and Instruments: Innovative(More)
The uncertainties in the outgassing/offgassing, dust/debris, and radiation environments within and surrounding spacecraft regularly lead to operational problems with technical, scientific and ultimately economically deleterious consequences. In this paper we present the outputs of a study into a small modular spacecraft health and environmental monitoring(More)
Harriss, R. D.; Holland, A. D.; Barber, S. J.; Karout, S.; Burgon, R.; Dryer, B. J.; Murray, N. J.; Hall, D. J.; Smith, P. H.; Greig, T.; Tutt, J. H.; Endicott, J.; Jerram, P.; Morris, D.; Robbins, M.; Prevost, V. and Holland, K. (2011). Compact CMOS camera demonstrator (C3D) for Ukube-1. In: UV/Optical/IR Space Telescopes and Instruments: Innovative(More)
The use of EM-CCDs for high resolution soft Xray spectroscopy has been proposed in previous studies and the analysis that followed identified and verified experimentally a Modified Fano Factor for X-ray detection using an Fe X-ray source. However, further experiments with soft X-rays at 1000 eV were less successful, attributed to excessive split events.(More)
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