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Research Output 2003 2019

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2019

Maser radiation from collisionless shocks: application to astrophysical jets

Speirs, D. C., Ronald, K., Phelps, A. D. R., Koepke, M. E., Cairns, R. A., Rigby, A., Cruz, F., Trines, R., Bamford, R., Kellett, B. J., Albertazzi, B., Cross, J. E., Fraschetti, F., Graham, P., Kozlowski, P. M., Kuramitsu, Y., Miniati, F., Morita, T., Oliver, M., Reville, B. & 10 othersSakawa, Y., Sarkar, S., Spindloe, C., Koenig, M., Silva, L. O., Lamb, D. Q., Tzeferacos, P., Lebedev, S., Gregori, G. & Bingham, R., 14 Mar 2019, In : High Power Laser Science and Engineering. 7, 8 p., e17.

Research output: Contribution to journalArticle

Open Access
File
Masers
masers
astrophysics
shock
Radiation
2017
1 Citation (Scopus)

Laboratory experiments simulating electron cyclotron masers in space

Ronald, K., Speirs, D. C., King, M., Heelis, T., McConville, S. L., Gillespie, K. M., Bingham, R., Robertson, C. W., Cross, A. W. & Phelps, A. D. R., 4 Aug 2017, In : EPJ Web of Conferences. 149, 2 p., 03015.

Research output: Contribution to journalArticle

Open Access
File
masers
cyclotrons
electrons

Two-dimensional Vlasov simulations of fast stochastic electron heating

Speirs, D. C., Eliasson, B. & Daldorff, L. K. S., 16 Oct 2017, In : Journal of Geophysical Research: Space Physics. 122, 10, p. 10638-10650 13 p.

Research output: Contribution to journalArticle

Open Access
File
striation
heating
ionospherics
electrons
simulation
2016
4 Citations (Scopus)

Electrostatic electron cyclotron instabilities near the upper hybrid layer due to electron ring distributions

Eliasson, B., Speirs, D. C. & Daldorff, L. K. S., 27 Jul 2016, In : Plasma Physics and Controlled Fusion. 58, 9, 10 p., 095002.

Research output: Contribution to journalArticle

Open Access
File
Cyclotrons
cyclotrons
Electrostatics
electrostatics
Electrons
2015
13 Citations (Scopus)

Electron-muon ranger: performance in the MICE muon beam

Adams, D., Alekou, A., Apollonio, M., Asfandiyarov, R., Barber, G., Barclay, P., De Bari, A., Bayes, R., Bayliss, V., Bene, P., Bertoni, R., Blackmore, V. J., Blondel, A., Blot, S., Bogomilov, M., Bonesini, M., Booth, C. N., Bowring, D., Boyd, S., Bradshaw, T. W. & 133 othersBravar, U., Bross, A. D., Cadoux, F., Capponi, M., Carlisle, T., Cecchet, G., Charnley, C., Chignoli, F., Cline, D., Cobb, J. H., Colling, G., Collomb, N., Coney, L., Cooke, P., Courthold, M., Cremaldi, L. M., Debieux, S., Dick, A., Demello, A., Dobbs, A., Dornan, P., Drielsma, F., Filthaut, F., Fitzpatrick, T., Franchini, P., Francis, V., Fry, L., Gallagher, A., Gamet, R., Gardener, R., Gourlay, S., Grant, A., Graulich, J. S., Greis, J., Griffiths, S., Hanlet, P., Hansen, O. M., Hanson, G. G., Hart, T. L., Hartnett, T., Hayler, T., Heidt, C., Hills, M., Hodgson, P., Hunt, C., Husi, C., Iaciofano, A., Ishimoto, S., Kafka, G., Kaplan, D. M., Karadzhov, Y., Kim, Y. K., Kuno, Y., Kyberd, P., Lagrange, J. B., Langlands, J., Lau, W., Leonova, M., Lintern, A., Littlefield, M., Long, K., Luo, T., Macwaters, C., Martlew, B., Martyniak, J., Masciocchi, F., Mazza, R., Middleton, S., Moretti, A., Moss, A., Muir, A., Mullacrane, I., Nebrensky, J. J., Neuffer, D., Nichols, A., Nicholson, R., Nicola, L., Messomo, E. N., Nugent, J. C., Oates, A., Onel, Y., Orestano, D., Overton, E., Owens, P., Palladino, V., Pasternak, J., Pastore, F., Pidcott, C., Popovic, M., Preece, R., Prestemon, S., Rajaram, D., Ramberger, S., Rayner, M. A., Ricciardi, S., Roberts, T. J., Robinson, M., Rogers, C., Ronald, K., Rothenfusser, K., Rubinov, P., Rucinski, P., Sakamato, H., Sanders, D. A., Sandström, R., Santos, E., Savidge, T., Smith, P. J., Snopok, P., Soler, F. J. P., Speirs, D., Stanley, T., Stokes, G., Summers, D. J., Tarrant, J., Taylor, I., Tortora, L., Torun, Y., Tsenov, R., Tunnell, C. D., Uchida, M. A., Vankova-Kirilova, G., Virostek, S., Vretenar, M., Warburton, P., Watson, S., White, C., Whyte, C. G., Wilson, A., Wisting, H., Yang, X., Young, A. & Zisman, M., 16 Dec 2015, In : Journal of Instrumentation. 10, 12, P12012.

Research output: Contribution to journalArticle

Open Access
File
Ionization
Cooling
muons
Electron
cooling
2014

3D PiC code investigations of auroral kilometric radiation mechanisms

Gillespie, K. M., McConville, S. L., Speirs, D. C., Ronald, K., Phelps, A. D. R., Bingham, R., Cross, A. W., Robertson, C. W., Whyte, C. G., He, W., Vorgul, I., Cairns, R. A. & Kellett, B. J., 1 Jan 2014, In : Journal of Physics: Conference Series . 511, 1, 6 p., 012051.

Research output: Contribution to journalArticle

Open Access
File
radiation
cyclotrons
simulation
radio emission
magnetic dipoles
14 Citations (Scopus)

Backward wave cyclotron-maser emission in the auroral magnetosphere

Speirs, D. C., Bingham, R., Cairns, R. A., Vorgul, I., Kellett, B. J., Phelps, A. D. R. & Ronald, K., 7 Oct 2014, In : Physical Review Letters. 113, 15, 5 p., 155002.

Research output: Contribution to journalArticle

Open Access
File
backward waves
masers
magnetospheres
cyclotrons
radiation

Numerical simulation of unconstrained cyclotron resonant maser emission

Speirs, D. C., Gillespie, K. M., Ronald, K., McConville, S. L., Phelps, A. D. R., Cross, A. W., Bingham, R., Kellett, B. J., Cairns, R. A. & Vorgul, I., 1 Jan 2014, In : Journal of Physics: Conference Series . 511, 1, 5 p., 012052.

Research output: Contribution to journalArticle

Open Access
File
masers
cyclotrons
output
radiation
simulation
2 Citations (Scopus)

Progress towards numerical and experimental simulations of fusion relevant beam instabilities

King, M., Bryson, R., Ronald, K., Cairns, R. A., McConville, S. L., Speirs, D. C., Phelps, A. D. R., Bingham, R., Gillespie, K. M., Cross, A. W., Vorgul, I. & Trines, R., 2014, In : Journal of Physics: Conference Series . 511, 1, p. 1-5 5 p., 012047.

Research output: Contribution to journalArticle

Open Access
File
fusion
simulation
astrophysics
inertial confinement fusion
masers

Scaled experiment to investigate auroral kilometric radiation mechanisms in the presence of background electrons

McConville, S. L., Ronald, K., Speirs, D. C., Gillespie, K. M., Phelps, A. D. R., Cross, A. W., Bingham, R., Robertson, C. W., Whyte, C. G., He, W., King, M., Bryson, R., Vorgul, I., Cairns, R. A. & Kellett, B. J., 1 Jan 2014, In : Journal of Physics: Conference Series . 511, 1, 6 p., 012061.

Research output: Contribution to journalArticle

Open Access
File
magnetic compression
radiation
electrons
distribution functions
waveguides
2013
28 Citations (Scopus)

Laboratory astrophysics: investigation of planetary and astrophysical maser emission

Bingham, R., Speirs, D. C., Kellett, B. J., Vorgul, I., McConville, S. L., Cairns, R. A., Cross, A. W., Phelps, A. D. R. & Ronald, K., Oct 2013, In : Space Science Reviews. 178, 2-4, p. 695-713 19 p.

Research output: Contribution to journalArticle

laboratory astrophysics
astrophysics
masers
cyclotron frequency
plasma
2 Citations (Scopus)

Numerical simulations of unbounded cyclotron-maser emissions

Speirs, D. C., McConville, S. L., Gillespie, K. M., Phelps, A. D. R. & Ronald, K., Dec 2013, In : Journal of Plasma Physics. 79, 6, p. 999-1001 3 p.

Research output: Contribution to journalArticle

Open Access
File
masers
radio emission
cyclotrons
simulation
astrophysics

The role of collisions on mode competition between the two-stream and Weibel instabilities

Humphrey, K. A., Trines, R. M. G. M., Speirs, D. C., Norreys, P. & Bingham, R., Dec 2013, In : Journal of Plasma Physics. 79, 06, p. 987- 989 3 p.

Research output: Contribution to journalArticle

Weibel instability
collisions
electron beams
heating
inertial confinement fusion
2011
14 Citations (Scopus)

Auroral magnetospheric cyclotron emission processes: numerical and experimental simulations

Ronald, K., Speirs, D. C., McConville, S. L., Gillespie, K., Phelps, A. D. R., Bingham, R., Vorgul, I., Cairns, R. A., Cross, A. W., Robertson, C., Whyte, C. G., He, W. & Kellett, B. J., Jul 2011, In : Plasma Physics and Controlled Fusion. 53, 7, 11 p., 074015.

Research output: Contribution to journalArticle

Cyclotrons
Magnetosphere
cyclotrons
magnetospheres
Radiation
4 Citations (Scopus)

Characterization of a Penning discharge for investigation of auroral radio wave generation mechanisms

McConville, S., Koepke, M. E., Gillespie, K., Matheson, K., Whyte, C., Robertson, C. & Speirs, D., 14 Nov 2011, In : Plasma Physics and Controlled Fusion. 53, 12, 9 p., 124020.

Research output: Contribution to journalArticle

Penning discharge
Radio waves
wave generation
radio waves
Magnetosphere
15 Citations (Scopus)

Cyclotron maser emission: stars, planets, and laboratory

Vorgul, I., Kellett, B. J., Cairns, R. A., Bingham, R., Ronald, K., Speirs, D. C., McConville, S. L., Gillespie, K. M. & Phelps, A. D. R., May 2011, In : Physics of Plasmas. 18, 5, p. - 7 p., 056501.

Research output: Contribution to journalArticle

masers
cyclotrons
planets
stars
cyclotron frequency
12 Citations (Scopus)

Cyclotron maser radiation from inhomogeneous plasmas

Cairns, R. A., Vorgul, I., Bingham, R., Ronald, K., Speirs, D. C., McConville, S. L., Gillespie, K. M., Bryson, R., Phelps, A. D. R., Kellett, B. J., Cross, A. W., Robertson, C., Whyte, C. G. & He, W., Feb 2011, In : Physics of Plasmas. 18, 2, p. 022902 5 p.

Research output: Contribution to journalArticle

masers
cyclotrons
radiation
plasma diffusion
space plasmas
2010
24 Citations (Scopus)

Numerical investigation of auroral cyclotron maser processes

Speirs, D., Ronald, K., McConville, S. L., Gillespie, K. M., Phelps, A. D. R., Cross, A. W., Bingham, R., Robertson, C. W., Whyte, C., He, W., Vorgul, I., Cairns, R. A. & Kellett, B. J., 5 May 2010, In : Physics of Plasmas. 17, 5, 8 p., 056501.

Research output: Contribution to journalArticle

masers
cyclotrons
output
magnetic compression
electron beams
1 Citation (Scopus)

Numerical investigation of auroral cyclotron maser processes: publisher's note

Speirs, D. C., Ronald, K., McConville, S. L., Gillespie, K. M., Phelps, A. D. R., Cross, A. W., Bingham, R., Robertson, C. W., Whyte, C. G., He, W., Vorgul, I., Cairns, R. A. & Kellett, B. J., 1 Jun 2010, In : Physics of Plasmas. 17, 6, 1 p., 056501.

Research output: Contribution to journalArticle

masers
cyclotrons
output
magnetic compression
electron beams
1 Citation (Scopus)

Numerical investigation of auroral cyclotron maser processes (vol 17, 056501, 2010)

Speirs, D. C., Ronald, K., McConville, S. L., Gillespie, K. M., Phelps, A. D. R., Cross, A. W., Bingham, R., Robertson, C. W., Whyte, C. G., He, W., Vorgul, I., Cairns, R. A. & Kellett, B. J., Jun 2010, In : Physics of Plasmas. 17, 6, p. - 1 p., 069901.

Research output: Contribution to journalArticle

masers
cyclotrons
2008
25 Citations (Scopus)

3D PiC code simulations for a laboratory experimental investigation of Auroral Kilometric Radiation mechanisms

Gillespie, K. M., Speirs, D., Ronald, K., McConville, S. L., Phelps, A. D. R., Bingham, R., Cross, A. W., Robertson, C. W., Whyte, C. G., He, W., Vorgul, I., Cairns, R. A. & Kellett, B. J., Dec 2008, In : Plasma Physics and Controlled Fusion. 50, 12, 11 p., 124038.

Research output: Contribution to journalArticle

Cyclotrons
Radiation
radiation
Magnetosphere
Earth magnetosphere
45 Citations (Scopus)

Demonstration of auroral radio emission mechanisms by laboratory experiment

McConville, S. L., Speirs, D., Ronald, K., Phelps, A. D. R., Cross, A. W., Bingham, R., Robertson, C. W., Whyte, C. G., He, W., Gillespie, K. M., Vorgul, I., Cairns, R. A. & Kellett, B. J., Jul 2008, In : Plasma Physics and Controlled Fusion. 50, 7, 13 p., 074010.

Research output: Contribution to journalArticle

radio emission
Demonstrations
Radiation
cyclotron frequency
Cyclotrons

Demonstration of auroral radio emission mechanisms by laboratory experiment

McConville, S. L., Speirs, D. C., Ronald, K., Phelps, A. D. R., Cross, A. W., Bingham, R., Robertson, C. W., Whyte, C. G., He, W., Gillespie, K., Vorgul, I., Cairns, R. A. & Kellett, B. J., 31 Jul 2008, In : Plasma Physics and Controlled Fusion. 50, 7, 13 p., 074010.

Research output: Contribution to journalArticle

Open Access
File
radio emission
Demonstrations
Radiation
cyclotron frequency
Cyclotrons
25 Citations (Scopus)
electron flux
electron beams
magnetic mirrors
electron guns
pitch (inclination)
35 Citations (Scopus)

Numerical simulation of auroral cyclotron maser processes

Speirs, D., McConville, S. L., Gillespie, K. M., Ronald, K., Phelps, A. D. R., Cross, A. W., Bingham, R., Robertson, C. W., Whyte, C. G., Vorgul, I., Cairns, R. A. & Kellett, B. J., Jul 2008, In : Plasma Physics and Controlled Fusion. 50, 7, 15 p., 074011 .

Research output: Contribution to journalArticle

Masers
Cyclotrons
masers
Velocity distribution
cyclotrons
33 Citations (Scopus)

Radio frequency resonator structure and diagnostic measurements for a laboratory simulation of Auroral Kilometric Radiation

Ronald, K., Speirs, D., McConville, S. L., Phelps, A. D. R., Robertson, C. W., Whyte, C. G., He, W., Gillespie, K. M. & Bingham, R., May 2008, In : Physics of Plasmas. 15, 5, p. 056503 8 p.

Research output: Contribution to journalArticle

radio frequencies
resonators
cyclotron frequency
radiation
simulation
2005
22 Citations (Scopus)

A cyclotron maser instability with application to space and laboratory plasmas

Cairns, R. A., Speirs, D., Ronald, K., Vorgul, I., Kellett, B. J., Phelps, A. D. R. & Bingham, R., 2005, In : Physica Scripta. T116, p. 23-26 3 p.

Research output: Contribution to journalArticle

space laboratories
space plasmas
masers
cyclotrons
Plasma
35 Citations (Scopus)

A laboratory experiment to investigate auroral kilometric radiation emission mechanisms

Speirs, D., Vorgul, I., Ronald, K., Bingham, R., Cairns, R. A., Phelps, A. D. R., Kellett, B. J., Cross, A. W., Whyte, C. G. & Robertson, C., Oct 2005, In : Journal of Plasma Physics. 71, 5, p. 665-674 9 p.

Research output: Contribution to journalArticle

magnetic compression
electron beams
magnetic field configurations
radiation
masers
74 Citations (Scopus)

Gyro-BWO experiments using a helical interaction waveguide

He, W., Ronald, K., Young, A. R., Cross, A. W., Phelps, A. D. R., Whyte, C. G., Rafferty, E. G., Thomson, J., Robertson, C. W., Speirs, D., Samsonov, S. V., Bratman, V. L. & Denisov, G. G., May 2005, In : IEEE Transactions on Electron Devices. 52, 5, p. 839-844 5 p.

Research output: Contribution to journalArticle

Electron beams
Waveguides
Tuning
Thermionic cathodes
Experiments
2004
8 Citations (Scopus)

Simulation of high power broadband cyclotron autoresonance maser amplifier and electron beam experiments

Speirs, D., Phelps, A. D. R., Konoplev, I. V., Cross, A. W. & He, W., Apr 2004, In : Review of Scientific Instruments. 75, 4, p. 826-831 5 p.

Research output: Contribution to journalArticle

Masers
Cyclotrons
masers
cyclotrons
Amplification
2003
14 Citations (Scopus)

The design of a high power ultrasonic test cell using finite element modelling techniques

Gachagan, A., Speirs, D. & McNab, A., 2003, In : Ultrasonics. 41, 4, p. 283-288 5 p.

Research output: Contribution to journalArticle

ultrasonic tests
cavitation flow
cells
pressure distribution
engineers