Imperial College London

ProfessorTimothySumner

Faculty of Natural SciencesDepartment of Physics

Professor of Experimental Astrophysics
 
 
 
//

Contact

 

+44 (0)20 7594 7552t.sumner

 
 
//

Location

 

1108Blackett LaboratorySouth Kensington Campus

//

Summary

 

Publications

Publication Type
Year
to

422 results found

Dittus H, Turyshev SG, Lämmerzahl C, Theil S, Foerstner R, Johann U, Ertmer W, Rasel E, Dachwald B, Seboldt W, Hehl FW, Kiefer C, Blome HJ, Kunz J, Giulini D, Bingham R, Kent B, Sumner TJ, Bertolami O, Páramos J, Rosales JL, Christophe B, Foulon B, Touboul P, Bouyer P, Reynaud S, Brillet A, Bondu F, Samain E, De Matos CJ, Erd C, Grenouilleau JC, Izzo D, Rathke A, Anderson JD, Asmar SW, Lau EE, Nieto MM, Mashhoon Bet al., 2005, A mission to explore the Pioneer anomaly, Pages: 3-10, ISSN: 0379-6566

The Pioneer 10 and 11 spacecraft yielded the most precise navigation in deep space to date. These spacecraft had exceptional acceleration sensitivity. However, analysis of their radio-metric tracking data has consistently indicated that at heliocentric distances of ∼20-70 astronomical units, the orbit determinations indicated the presence of a small, anomalous, Doppler frequency drift. The drift is a blue-shift, uniformly changing with a rate of ∼ (5.99 ± 0.01) × 10-9 Hz s-1, which can be interpreted as a constant sunward acceleration of each particular spacecraft of aP = (8.74 ± 1.33) × 10-10 ms -2(Anderson et al. 1998; Turyshev et al. 1999; Anderson et al. 2002a). The nature of this anomaly remains unexplained. This signal has become known as the Pioneer anomaly. The inability to explain the anomalous behavior of the Pioneers with conventional physics has contributed to growing discussion about its origin. There is now an increasing number of proposals that attempt to explain the anomaly outside conventional physics. This progress emphasizes the need for a new experiment to explore the detected signal. Furthermore, the recent extensive efforts led to the conclusion that only a dedicated experiment could ultimately determine the nature of the found signal. We discuss the Pioneer anomaly and present the next steps towards an understanding of its origin. We specificallyfocus on the development of a mission to explore the Pioneer Anomaly in a dedicated experiment conducted in deep space. This joint European-US mission is motivated by the desire to better understand the laws of fundamental physics as they affect dynamics in the solar system. The mission could lead to a major discovery in the 21st century and, with readily available technologies, it could be flown well within the Cosmic Vision time frame.

Conference paper

Turyshev SG, Dittus H, Lämmerzahl C, Theil S, Ertmer W, Rasel E, Foerstner R, Johann U, Klioner S, Soffel M, Dachwald B, Seboldt W, Perlick V, Sandford MCW, Bingham R, Kent B, Sumner TJ, Bertolami O, Páramos J, Christophe B, Foulon B, Touboul P, Bouyer P, Damour T, Salomon C, Reynaud S, Brillet A, Bondu F, Mangin JF, Samain E, Bertotti B, Iess L, Erd C, Grenouilleau JC, Izzo D, Rathke A, Asmar SW, Colavita M, Gürsel Y, Hemmati H, Shao M, Williams JG, Nordtvedt KL, Shapiro I, Reasenberg R, Drever RWP, Degnan J, Plowman JE, Hellings R, Murphy TWet al., 2005, Fundamental physics with the laser astrometric test of relativity, Pages: 11-18, ISSN: 0379-6566

The Laser Astrometric Test Of Relativity (LATOR) is a European-U.S. Michelson-Morley-type experiment designed to test the tensor metric nature of gravitation - the fundamental postulate of Einstein's theory of general relativity. By using a combination of independent timeseries of highly accurate gravitational deflection of light in the immediate proximity to the Sun along with measurements of the Shapiro time delay on the interplanetary scales (to a precision respectively better than 10-13 radians and 1 cm), LATOR will significantly improve our knowledge of relativistic gravity. The primary mission objective is to i) measure the key post-Newtonian Eddington parameter 7 with accuracy of a part in 109. (1 - γ) is a direct measure for presence of a new interaction in gravitational theory, and, in its search, LATOR goes a factor 30,000 beyond the present best result, Cassini's 2003 test. Other mission objectives include: ii) first measurement of gravity's non-linear effects on light to ∼0.01% accuracy; including both the traditional Eddington β parameter and also the spatial metric's 2nd order potential contribution(never been measured before); iii) direct measurement of the solar quadrupole moment J2 (currently unavailable) to accuracy of a part in 200 of its expected size; iv) direct measurement of the "frame-dragging" effect on light by the Sun's rotational gravitomagnetic field to one percent accuracy. LATOR's primary measurement pushes to unprecedented accuracy the search for cosmologically relevant scalar-tensor theories of gravity by looking for a remnant scalar field in today's solar system. The key element of LATOR is a geometric redundancy provided by the laser ranging and long-baseline optical interferometry. LATOR is envisaged as a partnership between European and US institutions and with clear areas of responsibility between the space agencies: NASA provides the deep space mission components, while optical infrastructure on the ISS

Conference paper

Sumner TJ, 2005, Advances in Space Research: Preface, ISSN: 0273-1177

Conference paper

Shaul DNA, Sumner TJ, Rochester GK, 2005, Coherent Fourier components in the LISA measurement bandwidth from test mass charging: Estimates and suppression, INTERNATIONAL JOURNAL OF MODERN PHYSICS D, Vol: 14, Pages: 51-71, ISSN: 0218-2718

Journal article

Araujo HM, Wass P, Shaul D, Rochester G, Sumner TJet al., 2005, Detailed calculation of test-mass charging in the LISA mission, Astroparticle Physics, Vol: 22, Pages: 451-469, ISSN: 1873-2852

The electrostatic charging of the LISA test masses due to exposure of the spacecraft to energetic particles in the space environment has implications in the design and operation of the gravitational inertial sensors and can affect the quality of the science data. Robust predictions of charging rates and associated stochastic fluctuations are therefore required for the exposure scenarios expected throughout the mission. We report on detailed charging simulations with the Geant4 toolkit, using comprehensive geometry and physics models, for Galactic cosmic-ray protons and helium nuclei. These predict positive charging rates of 50+e/s (elementary charges per second) for solar minimum conditions, decreasing by half at solar maximum, and current fluctuations of up to 30+e/s/Hz1/2. Charging from sporadic solar events involving energetic protons was also investigated. Using an event-size distribution model, we conclude that their impact on the LISA science data is manageable. Several physical processes hitherto unexplored as potential charging mechanisms have also been assessed. Significantly, the kinetic emission of very low-energy secondary electrons due to bombardment of the inertial sensors by primary cosmic rays and their secondaries can produce charging currents comparable with the Monte Carlo rates.

Journal article

Alner GJ, Araujo HM, Arnison GJ, Barton JC, Bewick A, Bungau C, Camanzi B, Carson MJ, Davidge D, Daw E, Dawson JV, Davies GJ, Davies JC, Duffy C, Durkin TJ, Gamble T, Hart SP, Hollingworth RJ, Homer GJ, Howard AS, Ivaniouchenkov I, Jones WG, Joshi MK, Kirkpatrick J, Kudryavtsev VA, Lawson TB, Lebedenko V, Lehner MJ, Lewin JD, Lightfoot PK, Liubarsky I, Luscher R, McMillan JE, Morgan B, Murphy A, Nicholls A, Nicklin G, Paling SM, Preece RM, Quenby JJ, Roberts JW, Robinson M, Smith NJT, Smith PF, Spooner NJC, Sumner TJ, Tovey DR, Tziaferi Eet al., 2005, Limits on wimp cross-sections from the NAIAD experiment at Boulby, Singapore, 5th international workshop on the identification of dark matter, 6 - 10 September 2004, Edinburgh, SCOTLAND, Publisher: World Scientific Publ Co Pte Ltd, Pages: 224-229

Conference paper

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

This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.

Request URL: http://wlsprd.imperial.ac.uk:80/respub/WEB-INF/jsp/search-html.jsp Request URI: /respub/WEB-INF/jsp/search-html.jsp Query String: id=00005751&limit=30&person=true&page=7&respub-action=search.html