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• Journal article
  Erdos G, Balogh A, 2014,
  , ASTROPHYSICAL JOURNAL, Vol: 781, ISSN: 0004-637X
  • Cite
  • Citations: 12
• Conference paper
  Daykin-Iliopoulos A, Desai R, 2014,

  Recent micropropulsion developments have increased the operational capabilities of microsatellites (< 100 kg), to the point where they are being considered for demanding missions such as Active Debris Removal (ADR). This study examines the state-of-the-art micropropulsion options that can be applied to a microsatellite performing a range of orbital manoeuvres such as ADR. To this end a generic system architecture is used for this example scenario with ranging delta-v requirements. A variety of propulsion systems are sized accordingly, and the trade-offs between the differing propulsion technologies evaluated with respect to the power requirements, System-Specific Impulse , and technology readiness level (TRL), as well as a ‘newly defined’ volume driven System-Specific Impulse . It was shown that the high specific impulse (> 2000s) and consequent mass and volume savings of miniaturised Electric Propulsion (EP) systems, such as the miniature ion and colloid thrusters, results in optimal I<inf>SSP</inf>’s and I<inf>SSP</inf>’s for the ADR scenario examined. Moreover an in-depth combined quantitative and qualitative analysis identifies delta-v regions most suited to both EP and Chemical Propulsion (CP) systems, as well as highlighting the inherent differences in the varying technologies with respect to volume as well as mass.

  • Abstract
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  • Citations: 1
• Journal article
  Matta M, Galand M, Moore L, Mendillo M, Withers Pet al., 2014,
  , ICARUS, Vol: 227, Pages: 78-88, ISSN: 0019-1035
  • Cite
  • Citations: 65
• Journal article
  Alconcel LNS, Fox P, Brown P, Oddy TM, Lucek EL, Carr CMet al., 2014,
  , GEOSCIENTIFIC INSTRUMENTATION METHODS AND DATA SYSTEMS, Vol: 4, Pages: 43-84, ISSN: 2193-0856
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• Journal article
  Sheldon L, Czaja A, 2014,
  , QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, Vol: 140, Pages: 22-30, ISSN: 0035-9009
  • Cite
  • Citations: 19
• Journal article
  Masters A, Phan TD, Badman SV, Hasegawa H, Fujimoto M, Russell CT, Coates AJ, Dougherty MKet al., 2014,
  , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 119, Pages: 121-130, ISSN: 2169-9380
  • Cite
  • Citations: 21
• Journal article
  Beth A, Garnier P, Toublanc D, Dandouras I, Mazelle C, Kotova Aet al., 2014,
  , Icarus, Vol: 227, Pages: 21-36, ISSN: 0019-1035
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• Journal article
  Weiss Z, Steers EBM, Pickering JC, Hoffmann V, Mushtaq Set al., 2014,
  , JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, Vol: 29, Pages: 2256-2261, ISSN: 0267-9477
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  • Citations: 9
• Conference paper
  Whiteside BJ, Brown P, Beek TJ, Horbury TS, Carr CMet al., 2014,

  TID Response of a Hybrid AMR Vector Magnetometer

  , IEEE Radiation Effects Data Workshop (REDW) is part of the Nuclear and Space Radiation Effect Conference (NSREC), Publisher: IEEE
  • Cite
• Conference paper
  Fox N, Green P, Brindley H, Russell J, Smith D, Lobb D, Cutter M, Barnes Aet al., 2014,
  , International Conference on Space Optics (ICSO), Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X
  • Cite
  • Citations: 1
• Book chapter
  Krasnoselskikh V, Balikhin M, Walker SN, Schwartz S, Sundkvist D, Lobzin V, Gedalin M, Bale SD, Mozer F, Soucek J, Hobara Y, Comisel Het al., 2014,
  , MICROPHYSICS OF COSMIC PLASMAS, Editors: Balogh, Bykov, Cargill, Dendy, DeWit, Raymond, Publisher: SPRINGER, Pages: 459-522, ISBN: 978-1-4899-7412-9
  • Cite
  • Citations: 2
• Book chapter
  Alexandrova O, Chen CHK, Sorriso-Valvo L, Horbury TS, Bale SDet al., 2014,
  , MICROPHYSICS OF COSMIC PLASMAS, Editors: Balogh, Bykov, Cargill, Dendy, DeWit, Raymond, Publisher: SPRINGER, Pages: 25-63, ISBN: 978-1-4899-7412-9
  • Cite
  • Citations: 4
• Journal article
  Nakamura R, Plaschke F, Teubenbacher R, Giner L, Baumjohann W, Magnes W, Steller M, Torbert RB, Vaith H, Chutter M, Fornacon K-H, Glassmeier K-H, Carr Cet al., 2014,
  , GEOSCIENTIFIC INSTRUMENTATION METHODS AND DATA SYSTEMS, Vol: 3, Pages: 1-11, ISSN: 2193-0856
  • Cite
  • Citations: 13
• Book chapter
  Ghavamian P, Schwartz SJ, Mitchell J, Masters A, Laming JMet al., 2014,
  , MICROPHYSICS OF COSMIC PLASMAS, Editors: Balogh, Bykov, Cargill, Dendy, DeWit, Raymond, Publisher: SPRINGER, Pages: 557-587, ISBN: 978-1-4899-7412-9
  • Cite
  • Citations: 3
• Book chapter
  Schwartz SJ, Zweibel EG, Goldman M, 2014,
  , MICROPHYSICS OF COSMIC PLASMAS, Editors: Balogh, Bykov, Cargill, Dendy, DeWit, Raymond, Publisher: SPRINGER, Pages: 5-23, ISBN: 978-1-4899-7412-9
  • Cite
  • Citations: 1
• Book chapter
  Mueller-Wodarg ICF, Griffith CA, Lellouch E, Cravens TEet al., 2014,

  TITAN Interior, Surface, Atmosphere, and Space Environment Introduction

  , TITAN: INTERIOR, SURFACE, ATMOSPHERE, AND SPACE ENVIRONMENT, Editors: MullerWodarg, Griffith, Lellouch, Cravens, Publisher: CAMBRIDGE UNIV PRESS, Pages: 1-9
  • Cite
  • Citations: 7
• Journal article
  O'Connor FM, Johnson CE, Morgenstern O, Abraham NL, Braesicke P, Dalvi M, Folberth GA, Sanderson MG, Telford PJ, Voulgarakis A, Young PJ, Zeng G, Collins WJ, Pyle JAet al., 2014,
  , GEOSCIENTIFIC MODEL DEVELOPMENT, Vol: 7, Pages: 41-91, ISSN: 1991-959X
  • Cite
  • Citations: 167
• Book chapter
  Balogh A, Bykov A, Cargill P, Dendy R, de Wit TD, Raymond Jet al., 2014,
  , MICROPHYSICS OF COSMIC PLASMAS, Editors: Balogh, Bykov, Cargill, Dendy, DeWit, Raymond, Publisher: SPRINGER, Pages: 1-4, ISBN: 978-1-4899-7412-9
  • Cite
• Journal article
  Mushtaq S, Steers EBM, Pickering JC, Putyera Ket al., 2013,
  , Journal of Analytical Atomic Spectrometry

  The increasing use of mixed gases, including helium mixtures, in glow discharge mass spectrometry has led to a need to understand the resulting signal enhancements due to changes in excitation and ionization processes. To understand more fully these processes in glow discharge, we have carried out complementary optical emission spectrometry experiments. The presence of added gases in the plasma gas can cause major changes in the number density of plasma gas ions and metastable atoms and so affects the intensities of spectral lines involving selective and non-selective excitation & ionization processes. We report the results of an experimental investigation on the effect of Ar/He mixed plasmas on the relative emission intensities of various analyte materials including copper, iron and titanium. Selective and non-selective excitation processes which are mainly dependent on the nature of the plasma gas and analyte material are observed and discussed.

  • Abstract
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• Journal article
  Ruffoni MP, Allende Prieto C, Nave G, Pickering JCet al., 2013,
  , ASTROPHYSICAL JOURNAL, Vol: 779, ISSN: 0004-637X
  • Cite
  • Citations: 21
• Journal article
  Maruca BA, Bale SD, Sorriso-Valvo L, Kasper JC, Stevens MLet al., 2013,
  , PHYSICAL REVIEW LETTERS, Vol: 111, ISSN: 0031-9007
  • Cite
  • Citations: 46
• Journal article
  Mozer FS, Bale SD, Bonnell JW, Chaston CC, Roth I, Wygant Jet al., 2013,
  , PHYSICAL REVIEW LETTERS, Vol: 111, ISSN: 0031-9007
  • Cite
  • Citations: 68
• Conference paper
  Pickering JC, Ruffoni M, Liggins F, Thorne APet al., 2013,

  Accurate laboratory atomic and molecular data for astrophysics applications by high resolution Fourier transform spectrometry

  Accurate high resolution atomic and molecular data are required for interpretation of many astrophysical spectra. The 51³Ô¹ÏÍø laboratory astrophysics program using high resolution Fourier Transform spectrometry is described. © 2013 Optical Society of America.

  • Abstract
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• Conference paper
  Fox C, Pickering JC, Beeby R, Murray JE, Last A, Green PDet al., 2013,

  Studies of the far IR water vapour continuum from CAVIAR and RHUBC campaigns using TAFTS

  We report results from the participation of the 51³Ô¹ÏÍø College TAFTS instrument in the CAVIAR and RHUBC field campaigns, validating a derived water vapor continuum parameterization in the far-IR spectral region. © OSA 2013.

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• Conference paper
  Fox C, Pickering JC, Beeby R, Murray JE, Last A, Green PDet al., 2013,

  Studies of the far IR water vapour continuum from CAVIAR and RHUBC campaigns using TAFTS

  We report results from the participation of the 51³Ô¹ÏÍø College TAFTS instrument in the CAVIAR and RHUBC field campaigns, validating a derived water vapor continuum parameterization in the far-IR spectral region. © OSA 2013.

  • Abstract
  • Cite
• Conference paper
  Fox C, Pickering JC, Beeby R, Murray JE, Last A, Green PDet al., 2013,

  Studies of the far IR water vapour continuum from CAVIAR and RHUBC campaigns using TAFTS

  We report results from the participation of the 51³Ô¹ÏÍø College TAFTS instrument in the CAVIAR and RHUBC field campaigns, validating a derived water vapor continuum parameterization in the far-IR spectral region. © OSA 2013.

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• Journal article
  Eastwood JP, Phan TD, Oieroset M, Shay MA, Malakit K, Swisdak M, Drake JF, Masters Aet al., 2013,
  , PLASMA PHYSICS AND CONTROLLED FUSION, Vol: 55, ISSN: 0741-3335
  • Cite
  • Citations: 49
• Journal article
  Masters A, Stawarz L, Fujimoto M, Schwartz SJ, Sergis N, Thomsen MF, Retino A, Hasegawa H, Zieger B, Lewis GR, Coates AJ, Canu P, Dougherty MKet al., 2013,
  , PLASMA PHYSICS AND CONTROLLED FUSION, Vol: 55, ISSN: 0741-3335
  • Cite
  • Citations: 8
• Journal article
  Mitchell JJ, Schwartz SJ, 2013,
  , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 118, Pages: 7566-7575, ISSN: 2169-9380
  • Cite
  • Citations: 11
• Journal article
  Pudney MA, Carr CM, Schwartz SJ, Howarth SIet al., 2013,
  , Geoscientific Instrumentation, Methods and Data Systems, Vol: 2, Pages: 249-255, ISSN: 2193-0864

  Magnetic-field measurements are essential tothe success of many scientific space missions. Outside ofthe earth’s magnetic field the biggest potential source ofmagnetic-field contamination of these measurements is emittedby the spacecraft. Spacecraft magnetic cleanliness is enforcedthrough the application of strict ground verificationrequirements for spacecraft equipment and instruments. Dueto increasingly strict AC magnetic-field requirements, manyspacecraft units cannot be verified on the ground using existingtechniques. These measurements must instead be takenclose to the equipment under test (EUT) and then extrapolated.A traditional dipole power law of −3 (with a fieldfall-off proportional to r−3) cannot be applied at these closedistances without risk of underestimating the field emitted bythe EUT, but we demonstrate that a power law of −2 is tooconservative. We propose a compromise that uses a powerlaw of −2 up to a distance equal to 3 times the unit size, beyondwhich a dipole power law can be applied. When extrapolatingfrom a distance of 0.20 m to 1.00 m from the centre ofa 0.20 m wide EUT, we demonstrate that this method avoidsan under prediction of the field, and is at least twice as accurateas performing the extrapolation with a fixed power lawof −2.

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