Imperial College London

ProfessorTimothySumner

Faculty of Natural SciencesDepartment of Physics

Professor of Experimental Astrophysics
 
 
 
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Contact

 

+44 (0)20 7594 7552t.sumner

 
 
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Location

 

1108Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

416 results found

Wass PJ, Araujo HA, Davidge D, Howard A, Lee CGY, Rochester GK, Shaul DNA, Sumner TJet al., 2005, Charging of the LISA test masses: sources, consequences and management, Proceedings of 10th Marcel Grossman meeting, Rio de Janeiro, 2003, Pages: 1-3

Conference paper

Alner GJ, Araujo HM, Arnison GJ, Barton JC, Bewick A, Bungau C, Camanzi B, Carson MJ, Davidge D, Dawson JV, Davies GJ, Davies JC, Durkin TJ, Gamble T, Hart SP, Hollingworth RJ, Homer GJ, Howard AS, Ivaniouchenkov I, Jones WG, Joshi MK, Kudryavtsev VA, Lawson TB, Lebedenko V, Lehner MJ, Lewin JD, Lightfoot PK, Liubarsky I, Luscher R, McMillan JE, Morgan B, Nicholls A, Nicklin G, Paling SM, Preece RM, Quenby JJ, Roberts JW, Robinson M, Smith NJT, Smith PF, Spooner NJC, Sumner TJ, Tovey DRet al., 2005, Zeplin I: first limits on nuclear recoil rate, Singapore, 5th international workshop on the identification of dark matter, 6 - 10 September 2004, Edinburgh, SCOTLAND, Publisher: World Scientific Publ Co Pte Ltd, Pages: 218-223

Conference paper

Alner GJ, Araujo H, Ayad R, Bewick A, Burwell J, Carson MJ, Chen C, Davies JC, Dawson J, Gamble T, Garcia M, Heidecker J, Howard AS, Katz-Hyman M, Jones WG, Kirkpatrick J, Kudryavtsev VA, Lawson TB, Lebedenko V, Lehner MJ, Lewin JD, Lightfoot PK, Liubarsky I, L├╝scher R, McMillan JE, Martoff CJ, Morgan B, Mulholland J, Nicklin G, Ohnuki T, Paling SM, Petkov A, Preece RM, Quenby JJ, Roberts JW, Robinson M, Rykoff E, Sanders A, Snowden-Ifft DP, Smith NJT, Smith PP, Spooner NJC, Sumner TJ, Tovey DR, Villaume N, Walker Ret al., 2004, The DRIFT-I dark matter detector at Boulby: Design, installation and operation, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol: 535, Pages: 644-655, ISSN: 0168-9002

DRIFT-I, the first full-scale gaseous dark matter detector, has recently been installed at ∼1100 m depth at the Boulby Underground Laboratory, UK. The DRIFT concept offers high background discrimination and sensitivity to the direction of WIMP-induced nuclear recoils, the latter being of particular importance in the search for evidence of WIMPs in our galaxy, In this paper we discuss the design of the DRIFT-I detector and its installation and operation at Boulby. We also present results of early engineering runs and outline plans for the future. © 2004 Elsevier B.V. All rights reserved.

Journal article

Alner GJ, Araujo H, Ayad R, Bewick A, Burwell J, Carson M, Chen C, Davies JC, Dawson J, Gamble T, Garcia M, Heidecker J, Howard AS, Katz-Hyman M, Jones WG, Kirkpatrick J, Kudryavtsev VA, Lawson TB, Lebedenko V, Lehner M, Lewin JD, Lightfoot PK, Liubarsky I, Luscher R, McMillan JE, Martoff CJ, Morgan B, Mulholland J, Nicklin G, Ohnuki T, Paling SM, Petkov A, Preece RM, Quenby JJ, Roberts J, Robinson M, Rykoff E, Sanders A, Snowden-Ifft DP, Smith NJT, Smith PF, Spooner NJC, Sumner TJ, Tovey DR, Villaume N, Walker Ret al., 2004, The DRIFT-I dark matter detector at Boulby: design, installation and operation, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Vol: 535, Pages: 644-655, ISSN: 0168-9002

Journal article

Ni WT, Ba G, Ba Y, Dittus H, Huang T, Lammerzahl C, Li GY, Luo J, Ma ZG, Mangin JF, Nie YX, Peters A, Rudiger A, Samain E, Schiller S, Shaul D, Shiomi S, Sumner T, Tang CJ, Tao J, Touboul P, Wang H, Wicht A, Wu J, Wu XJ, Xiong YH, Xu CM, Yan J, Yao DZ, Yeh HC, Zhang SL, Zhang YZ, Zhou ZBet al., 2004, ASTROD I, test of relativity, solar-system measurement and G-wave detection, 6th International Conference on Gravitation and Astrophysics, Publisher: KOREAN PHYSICAL SOC, Pages: S118-S123, ISSN: 0374-4884

Conference paper

Sumner TJ, 2004, Equivalence Principle measurements, GEN RELAT GRAVIT, Vol: 36, Pages: 2331-2339, ISSN: 0001-7701

Over the centuries there have been many experimental tests of the 'universality of freefall.' To date, these measurements have established the equivalence between inertial and gravitational mass to high precision, justifying its use as a foundation stone of general relativity by Einstein. There is a surprising richness in the variety of techniques and choice of test bodies which have been used so far, and a brief review is presented. However, future space experiments promise much better precision in this measurement and STEP is presented in some detail as one of a number of such missions. Using pairs of concentric free-failing proof-masses, STEP will be able to test the Equivalence Principle (EP) to a sensitivity at least five orders of magnitude better than currently achievable on ground. The EP is a founding principle of general relativity and STEP is the most sensitive experiment of this type planned so far, aiming at 1 part in 10(18).

Journal article

Mester J, Buchman S, Cruise AM, DeBra D, Dittus H, Everitt CWF, Foulon B, Keiser GM, Kent BJ, Lipa J, Lockerbie N, Lockhart JM, Loeffler F, Muhlfelder B, Parkinson B, Pegrum C, Sandford M, Speake CC, Sumner TJ, Taber M, Torii R, Touboul P, Turneaure J, Vitale S, Vodel W, Worden PWet al., 2004, Gravitational experiments in space: Gravity probe B and STEP, 2nd International Conference on Particle and Fundamental Physics in Space, Publisher: ELSEVIER SCIENCE BV, Pages: 147-154, ISSN: 0920-5632

Conference paper

Rowan-Robinson M, Lari C, Perez-Fournon I, Gonzalez-Solares EA, La Franca F, Vaccari M, Oliver S, Gruppioni C, Ciliegi P, Heraudeau P, Serjeant S, Efstathiou A, Babbedge T, Matute I, Pozzi F, Franceschini A, Vaisanen P, Afonso-Luis A, Alexander DM, Almaini O, Baker AC, Basilakos S, Barden M, del Burgo C, Bellas-Velidis I, Cabrera-Guerra F, Carballo R, Cesarsky CJ, Clements DL, Crockett H, Danese L, Dapergolas A, Drolias B, Eaton N, Egami E, Elbaz D, Fadda D, Fox M, Genzel R, Goldschmidt P, Gonzalez-Serrano JI, Graham M, Granato GL, Hatziminaoglou E, Herbstmeier U, Joshi M, Kontizas E, Kontizas M, Kotilainen JK, Kunze D, Lawrence A, Lemke D, Linden-Vornle MJD, Mann RG, Marquez I, Masegosa J, McMahon RG, Miley G, Missoulis V, Mobasher B, Morel T, Norgaard-Nielsen H, Omont A, Papadopoulos P, Puget JL, Rigopoulou D, Rocca-Volmerange B, Sedgwick N, Silva L, Sumner T, Surace C, Vila-Vilaro B, van der Werf P, Verma A, Vigroux L, Villar-Martin M, Willott CJ, Carraminana A, Mujica Ret al., 2004, The European Large-Area ISO Survey (ELAIS): the final band-merged catalogue, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, Vol: 351, Pages: 1290-1306, ISSN: 0035-8711

Journal article

Sumner TJ, Shaul DNA, 2004, The observation of gravitational waves from space using Lisa, MODERN PHYSICS LETTERS A, Vol: 19, Pages: 785-800, ISSN: 0217-7323

Journal article

Ahrens J, Bahcall JN, Bai X, Bay RC, Becka T, Becker KH, Berley D, Bernardini E, Bertrand D, Besson DZ, Blaufuss E, Boersma DJ, Boser S, Bohm C, Botner O, Bouchta A, Bouhali O, Burgess T, Carithers W, Castermans T, Cavin J, Chinowsky W, Chirkin D, Collin B, Conrad J, Cooley J, Cowen DF, Davour A, De Clercq C, DeYoung T, Desiati P, Ehrlich R, Ellsworth RW, Evenson PA, Fazely AR, Feser T, Gaisser TK, Gallagher J, Ganugapati R, Geenen H, Goldschmidt A, Goodman JA, Gunasingha RM, Hallgren A, Halzen F, Hanson K, Hardtke R, Hauschildt T, Hays D, Helbing K, Hellwig M, Herquet P, Hill GC, Hubert D, Hughey B, Hulth PO, Hultqvist K, Hundertmark S, Jacobsen J, Japaridze GS, Jones A, Karle A, Kawai H, Kestel M, Kitamura N, Koch R, Kopke L, Kowalski M, Lamoureux JI, Leich H, Liubarsky I, Madsen J, Matis HS, McParland CP, Messarius T, Meszaros P, Minaeva Y, Minor RH, Miocinovic P, Miyamoto H, Morse R, Nahnhauer R, Neunhoffer T, Niessen P, Nygren DR, Ogelman H, Olbrechts P, Patton S, Paulos R, de los Heros CP, Pohl AC, Pretz J, Price PB, Przybylski GT, Rawlins K, Razzaque S, Resconi E, Rhode W, Ribordy M, Richter S, Sander HG, Schinarakis K, Schlenstedt S, Schneider D, Schwarz R, Seckel D, Smith AJ, Solarz M, Spiczak GM, Spiering C, Stamatikos M, Stanev T, Steele D, Steffen P, Stezelberger T, Stokstad RG, Sulanke KH, Sullivan GW, Sumner TJ, Taboada I, Tilav S, van Eijndhoven N, Wagner W, Walck C, Wang RR, Wiebusch CH, Wiedemann C, Wischnewski R, Wissing H, Woschnagg K, Yoshida Set al., 2004, Status of the IceCube Neutrino Observatory, 2nd VERITAS Symposium on TeV Astrophysics from Extragalactic Sources, Publisher: ELSEVIER SCI LTD, Pages: 519-525, ISSN: 1387-6473

Conference paper

Shaul DNA, Sumner TJ, 2004, Estimating accuracy of electrostatic finite element models, COMMUNICATIONS IN NUMERICAL METHODS IN ENGINEERING, Vol: 20, Pages: 313-321, ISSN: 1069-8299

Journal article

Araujo HM, Bewick A, Davidge D, Dawson J, Ferbel T, Howard AS, Jones WG, Joshi M, Lebedenko V, Liubarsky I, Quenby JJ, Sumner TJ, Neves Fet al., 2004, Low-temperature study of 35 photomultiplier tubes for the ZEPLIN III experiment, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Vol: 521, Pages: 407-415, ISSN: 0168-9002

Journal article

Sumner T, Araujo H, Davidge D, Howard A, Lee C, Rochester G, Shaul D, Wass Pet al., 2004, Description of charging/discharging processes of the LISA sensors, 5th Edoardo Amaldi Conference on Gravitational Waves, Publisher: IOP PUBLISHING LTD, Pages: S597-S602, ISSN: 0264-9381

Conference paper

Shaul DNA, Sumner TJ, Araujo HM, Rochester GK, Wass PJ, Lee CGYet al., 2004, Unwanted, coherent signals in the LISA bandwidth due to test mass charging, 5th Edoardo Amaldi Conference on Gravitational Waves, Publisher: IOP PUBLISHING LTD, Pages: S647-S651, ISSN: 0264-9381

Conference paper

Ahrens J, Bahcall JN, Bai X, Bay RC, Becka T, Becker KH, Berley D, Bernardini E, Bertrand D, Besson DZ, Biron A, Blaufuss E, Boersma DJ, Boser S, Bohm C, Botner O, Bouchta A, Bouhali O, Burgess T, Carithers W, Castermans T, Cavin J, Chinowsky W, Chirkin D, Collin B, Conrad J, Cooley J, Cowen DF, Davour A, De Clercq C, DeYoung T, Desiati P, Ehrlich R, Ellsworth RW, Evenson PA, Fazely AR, Feser T, Gaisser TK, Gallagher J, Ganugapati R, Geenen H, Goldschmidt A, Goodman JA, Gunasingha RM, Hallgren A, Halzen F, Hanson K, Hardtke R, Hauschildt T, Hays D, Helbing K, Hellwig M, Herquet P, Hill GC, Hubert D, Hughey B, Hulth PO, Hultqvist K, Hundertmark S, Jacobsen J, Japaridze GS, Jones A, Karle A, Kawai H, Kestel M, Kitamura N, Koch R, Kopke L, Kowalski M, Lamoureux JI, Leich H, Leuthold M, Liubarsky I, Madsen J, Matis HS, McParland CP, Messarius T, Meszaros P, Minaeva Y, Minor RH, Miocinovic P, Miyamoto H, Morse R, Nahnhauer R, Neunhoffer T, Niessen P, Nygren DR, Ogelman H, Olbrechts P, Patton S, Paulos R, de los Heros CP, Pohl AC, Pretz J, Price PB, Przybylski GT, Rawlins K, Razzaque S, Resconi E, Rhode W, Ribordy M, Richter S, Sander HG, Schinarakis K, Schlenstedt S, Schmidt T, Schneider D, Schwarz R, Seckel D, Smith AJ, Solarz M, Spiczak GM, Spiering C, Stamatikos M, Stanev T, Steele D, Steffen P, Stezelberger T, Stokstad RG, Sulanke KH, Sullivan GW, Sumner TJ, Taboada I, Tilav S, van Eijndhoven N, Wagner W, Walck C, Wang RR, Wiebusch CH, Wiedemann C, Wischnewski R, Wissing H, Woschnagg K, Yoshida Set al., 2004, Sensitivity of the IceCube detector to astrophysical sources of high energy muon neutrinos, ASTROPARTICLE PHYSICS, Vol: 20, Pages: 507-532, ISSN: 0927-6505

Journal article

Sumner TJ, Everitt CWF, Mester J, Torn R, Worden P, Lockerbie N, Pegrum C, Anderson J, Mann G, Blaser JP, Cruise AM, Speake CC, Damour T, Vitale S, Dittus H, Foulon B, Touboul P, Kent BJ, Sandford M, Jafry Y, Reinhardt R, Loeffler F, Vodel Wet al., 2004, STEP - (Satellite Test of the Equivalence Principle), 8th International Conference on Advanced Technology and Particle Physics, Pages: 148-154

Conference paper

Ni WT, Ba G, Ba Y, Dittus H, Huang T, Lammerzahl C, Li GY, Luo J, Ma ZG, Mangin JF, Nie YX, Peters A, Rudiger A, Samain E, Schiller S, Shaul D, Shiomi S, Sumner T, Tang CJ, Tao J, Touboul P, Wang H, Wicht A, Wu J, Wu XJ, Xiong YH, Xu CM, Yan J, Yao DZ, Yeh HC, Zhang SL, Zhang YZ, Zhou ZBet al., 2004, ASTROD I, test of relativity, solar-system measurement and G-wave detection, Journal of the Korean Physical Society, Vol: 45, Pages: S118-S123, ISSN: 0374-4884

Journal article

Araujo H, Wass P, Howard A, Sumner TJet al., 2004, Space science simulations using GEANT4: test-mass charging in the LISA and LISA pathfinder space missions, SEPTIMESS final report to ESA, Contract number 16339/02/NL/FM

Report

Ni WT, Ba G, Ba Y, Dittus H, Huang T, Lammerzahl C, Li GY, Luo J, Ma ZG, Mangin JF, Nie YX, Peters A, Rudiger A, Samain E, Schiller S, Shaul D, Shiomi S, Sumner T, Tang CJ, Tao J, Touboul P, Wang H, Wicht A, Wu J, Wu XJ, Xiong YH, Xu CM, Yan J, Yao DZ, Yeh HC, Zhang SL, Zhang YZ, Zhou ZBet al., 2004, ASTROD I, test of relativity, solar-system measurement and G-wave detection, Journal of the Korean Physical Society, Vol: 45, Pages: S118-S123, ISSN: 0374-4884

Journal article

Bao G, Ni WT, Shaul D, Sumner TJet al., 2004, Cosmic-ray solar-flare charging and charge control for the ASTROD 1 test mass, Proceedings COSPAR 2004

Conference paper

Araujo HM, Wass P, Shaul D, Sumner TJet al., 2004, New estimates of test-mass charging in the LISA mission, Bellingham, Conference on gravitational wave and particle astrophysics detectors, Glasgow, Scotland, 23 - 24 June 2004, Publisher: SPIE - International Society for Optical Engineering, Pages: 174-182

Conference paper

Sumner TJ, 2004, Dark matter, Bellingham, Conference on gravitational wave and particle astrophysics detectors, Glasgow, Scotland, 23 - 24 June 2004, Publisher: SPIE - International Society for Optical Engineering, Pages: 37-48

Conference paper

Ahmed B, Alner GJ, Araujo H, Barton JC, Bewick A, Carson MJ, Davidge D, Dawson JV, Gamble T, Hart SP, Hollingworth R, Howard AS, Jones WG, Joshi MK, Kudryavtsev VA, Lawson TB, Lebedenko V, Lehner MJ, Lewin JD, Lightfoot PK, Liubarsky I, Luscher R, McMillan JE, Morgan B, Nicklin G, Paling SM, Preece RM, Quenby JJ, Roberts JW, Robinson M, Smith NJT, Smith PF, Spooner NJC, Sumner TJ, Tovey DRet al., 2003, The NAIAD experiment for WIMP searches at Boulby mine and recent results, Astroparticle Physics, Vol: 19, Pages: 691-702, ISSN: 1873-2852

The NAIAD experiment (NaI Advanced Detector) for weakly interacting massive particle (WIMP) dark mattersearches at Boulby mine (UK) is described. The detector consists of an array of encapsulated and unencapsulatedNaI(Tl) crystals with high light yield. Six crystals are collecting data at present. Data accumulated by four of them (10.6kg year exposure) have been used to set upper limits on the WIMP–nucleon spin-independent and WIMP–protonspin-dependent cross-sections. Pulse shape analysis has been applied to discriminate between nuclear recoils, as may becaused by WIMP interactions, and electron recoils due to gamma background. Various calibrations of crystals arepresented.

Journal article

Ahmed B, Alner GJ, Barton JC, Bewick A, Carson MJ, Davidge D, Dawson JV, Gamble T, Hart SP, Hollingworth R, Howard AS, Jones WG, Joshi MK, Kudryavtsev VA, Lawson TB, Lebedenko V, Lehner MJ, Lewin JD, Lightfoot PK, Liubarsky I, Luscher R, McMillan JE, Morgan B, Nicklin G, Paling SM, Preece RM, Quenby JJ, Roberts JW, Robinson M, Smith NJT, Smith PF, Spooner NJC, Sumner TJ, Tovey DRet al., 2003, Recent results of the dark matter search with NaI(Tl) detectors at Boulby Mine, 5th International UCLA Symposium on Sources and Detection of Dark Matter and Dark Energy in the Universe, Publisher: ELSEVIER SCIENCE BV, Pages: 193-196, ISSN: 0920-5632

Conference paper

Cline DB, Seo Y, Sergiampietri F, Wang H, White JT, Gao J, Picchi P, Mannocchi G, Periale L, Pietropaolo F, Alner GJ, Hart SP, Lewin JD, Preece RM, Smith PF, Smith NJT, Spooner NJC, Tovey DR, Quenby JJ, Sumner TJ, Jones WG, Liubarsky Iet al., 2003, Status of ZEPLIN II and ZEPLIN IV study, 5th International UCLA Symposium on Sources and Detection of Dark Matter and Dark Energy in the Universe, Publisher: ELSEVIER SCIENCE BV, Pages: 229-232, ISSN: 0920-5632

Conference paper

Araujo HM, Howard A, Shaul DNA, Sumner TJet al., 2003, Electrostatic charging of cubic test masses in the LISA mission, 4th International LISA Symposium, Publisher: IOP PUBLISHING LTD, Pages: S311-S319, ISSN: 0264-9381

Conference paper

Dolesi R, Bortoluzzi D, Bosetti P, Carbone L, Cavalleri A, Cristofolini I, DaLio M, Fontana G, Fontanari V, Foulon B, Hoyle CD, Hueller M, Nappo F, Sarra P, Shaul DNA, Sumner T, Weber WJ, Vitale Set al., 2003, Gravitational sensor for LISA and its technology demonstration mission, 4th International LISA Symposium, Publisher: IOP PUBLISHING LTD, Pages: S99-S108, ISSN: 0264-9381

Conference paper

Akimov DY, Bewick A, Danilov MV, Davidge DCR, Dawson JV, Ditlov VA, Gillespie JR, Howard AS, Jones WG, Joshi MK, Kovalenko AG, Kovalenko DA, Lebedenko VN, Sumner TJ, Quenby JJet al., 2003, Development of a two-phase xenon dark matter detector, 3rd International Conference on Nonaccelerator New Physics, Publisher: MAIK NAUKA/INTERPERIODICA PUBL, Pages: 497-499, ISSN: 1063-7788

Conference paper

Buchman S, Mester J, Sumner TJ, 2003, Charge measurement, Electrical Measurement, Signal Processing, and Displays, ISBN: 9780849317330

© 2003 by Taylor and Francis Group, LLC. In terms of fundamental physical constants, the coulomb is measured in units of the elementary chargee: (8.1b) where the relative uncertainty in the value of the elementary charge is 0.30 ppm [1]. Charge measurement is widely used in electronics, physics, radiology, and light and particle detection, as well as in technologies involving charged particles or droplets (as for example, toners used in copiers). Measuring charge is also the method of choice for determining the average value for small and/or noisy electric currents by utilizing time integration. The two standard classes of charge-measuring devices are the electrostatic voltmeters and the charge amplifiers.

Book chapter

Sumner TJ, 2003, Xenon dark matter detector technology review, River Edge NJ, 4th international workshop on the identification of dark matter, York, September 2002, Publisher: World Scientific, Pages: 396-401

Conference paper

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