If you made any changes in Pure these will be visible here soon.

Research Output 2004 2019

2004
1 Citation (Scopus)

Free electron maser experiments based on a coaxial 2d bragg cavity

Konoplev, I. V., McGrane, P., Ronald, K., Cross, A. W., He, W., Whyte, C. G., Phelps, A. D. R. & Robertson, C. W., 2004, p. 569-570. 1 p.

Research output: Contribution to conferencePaper

masers
free electrons
microwaves
cavities
electron beams
1 Citation (Scopus)

Results from thermionic cathode gyro-twa experiments

Phelps, A. D. R., Ronald, K., He, W., Young, A. R., Rafferty, E. G., Cross, A. W., Whyte, C. G., Thomson, J., Robertson, C. W. & IEEE, 2004, Conference Digest of the 2004 Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electionics. New Jersey, USA: IEEE, p. 273-274 1 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

thermionic cathodes
electron beams
amplifiers
traveling wave amplifiers
bandwidth
2005
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
1 Citation (Scopus)

Experimental study of a FEM based on a 2D distributed feedback cavity

Konoplev, I. V., McGrane, P., Ronald, K., Cross, A. W., He, W., Whyte, C. G., Phelps, A. D. R., Robertson, C. W., Speirs, D., Ginzburg, N. S., Peskov, N. Y., Sergeev, A. S., Thumm, M. & IEEE, 2005, The Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics. New Jersey, USA: IEEE, Vol. 2. p. 499-500 1 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

masers
free electrons
cavities
maser outputs
Bragg reflectors
75 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

Laboratory simulation at microwave frequencies of auroral kilometric radiation emission mechanisms

Speirs, D., Ronald, K., Phelps, A. D. R., Cross, A. W., Bingham, R., Vorgul, I., Cairns, R. A., Whyte, C. G., Robertson, C. W. & IEEE, 2005, The Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics. New Jersey, USA: IEEE, Vol. 1. p. 97-98 1 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

microwave frequencies
velocity distribution
magnetic compression
auroral zones
nonthermal radiation
2006
1 Citation (Scopus)

Comparison of broadband gyro-TWA simulations with experiments

Young, A. R., Whyte, C. G., Rafferty, E. G., Thomson, J., Robertson, C. W., Phelps, A. D. R., He, W., Cross, A. W. & Ronald, K., Sep 2006, Joint 31st International Conference on Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006 (IRMMW-THz 2006) . Piscataway, New Jersey: IEEE, p. 342-342 1 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

broadband
superhigh frequencies
simulation
bandwidth
harmonics

Design and simulation of a cusp gun for use in gyro-amplifiers

Rowlands, D. H., He, W., Whyte, C. G., Young, A. R., Cross, A. W., Phelps, A. D. R., Robertson, C. W. & Ronald, K., Sep 2006, Conference Digest of the 2006 Joint 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics. IEEE, p. 519-519

Research output: Chapter in Book/Report/Conference proceedingChapter

cusps
amplifiers
electron beams
simulation
particle accelerators
58 Citations (Scopus)

Experimental study of coaxial free-electron maser based on two-dimensional distributed feedback

Konoplev, I. V., McGrane, P., He, W., Cross, A. W., Phelps, A. D. R., Whyte, C. G., Ronald, K. & Robertson, C. W., 24 Jan 2006, In : Physical Review Letters. 96, 3, p. 035002/1-035002/4

Research output: Contribution to journalArticle

masers
free electrons
high current
tuning
photonics
1 Citation (Scopus)

First operation of free-electron maser based on a combined two-mirror cavity based on 2D and 1D Bragg structures

Cross, A. W., Konoplev, I. V., He, W., Macinnes, P., Phelps, A. D. R., Ronald, K., Whyte, C. G. & Robertson, C. W., 2006, IEEE International Vacuum Electronics Conference, 2006, held jointly with 2006 IEEE International Vacuum Electron Sources. Piscataway, New Jersey: IEEE, p. 469-470 2 p. (IEEE International Vacuum Electronics Conference IVEC).

Research output: Chapter in Book/Report/Conference proceedingChapter

Masers
masers
free electrons
Mirrors
mirrors
39 Citations (Scopus)

High-current oversized annular electron beam formation for high-power microwave research

Konoplev, I. V., Cross, A. W., MacInnes, P., He, W., Whyte, C. G., Phelps, A. D. R., Robertson, C. W. & Ronald, K., 23 Oct 2006, In : Applied Physics Letters. 89, 17, p. 171503-1-171503-3

Research output: Contribution to journalArticle

high current
electron beams
microwaves
relativistic electron beams
masers

Laboratory investigation of cyclotron emission processes for auroral radiation

Phelps, A. D. R., Ronald, K., Speirs, D., McConville, S. L., Cross, A. W., Vorgul, I., Robertson, C. W., Bingham, R., Cairns, R. A., Whyte, C. G. & Kellett, B. J., 2006, In : Geophysical Research Abstracts. 8, 05904

Research output: Contribution to journalConference Contribution

cyclotrons
magnetic compression
radiation
velocity distribution
electron beams

Microwave generation from an electron horseshoe distribution: theory and experiment

Ronald, K., Phelps, A. D. R., Bingham, R., Speirs, D., Cross, A. W., Vorgul, I., Cairns, R. A., Kellett, B. J., Whyte, C. G. & Robertson, C., 2006, High Energy Density and High Power RF. Melville, N.Y, USA, Vol. 807. p. 246-251 5 p. (American Institute of Physics Conference Proceedings).

Research output: Chapter in Book/Report/Conference proceedingChapter

velocity distribution
microwaves
auroral zones
nonthermal radiation
masers
79 Citations (Scopus)
253 Downloads (Pure)
Open Access
File
backward waves
oscillators
waveguides
wave interaction
simulation
2007
1 Citation (Scopus)

A cusp gun for gyro-amplifiers

Rowlands, D. H., Whyte, C. G., Young, A. R., He, W. L., Robertson, C. W., Cross, A. W., Phelps, A. D. R., Ronald, K. & IEEE, 2007, p. 884-885. 1 p.

Research output: Contribution to conferencePaper

superhigh frequencies
cusps
amplifiers
bandwidth
interactions
1 Citation (Scopus)

A cusp gun Gyro-TWA with helical interaction region

Rowlands, D. H., Phelps, A. D. R., Young, A. R., Whyte, C. G., He, W., Cross, A. W., Robertson, C. W., Ronald, K. & IEEE, 2007, Proceedings of the Eighth IEEE International Vacuum Electronics Conference. IEEE, p. 235-236 1 p. (IEEE International Vacuum Electronics Conference IVEC).

Research output: Chapter in Book/Report/Conference proceedingChapter

cusps
thermionics
interactions
flares
simulation

Free-electron masers based on two-dimensional distributed feedback

Phelps, A. D. R., Konoplev, I. V., Cross, A. W., Macinnes, P., He, W., Ronald, K., Whyte, C. G. & Robertson, C. W., May 2007, IEEE International Vacuum Electronics Conference, 2007 : IVEC '07. Piscataway, New Jersey: IEEE, p. 423-424 2 p. (International Vacuum Electronics Conference IVEC).

Research output: Chapter in Book/Report/Conference proceedingChapter

Masers
masers
free electrons
Mirrors
mirrors
89 Citations (Scopus)
traveling wave amplifiers
thermionic cathodes
corrugated waveguides
electron guns
electron beams

Pseudospark sourced beam-wave interaction experiments

Cross, A. W., Yin, H., He, W., Phelps, A. D. R., Ronald, K., Whyte, C. G., Robertson, C. W. & IEEE, 2007, p. 154-155. 1 p.

Research output: Contribution to conferencePaper

wave interaction
electron beams
pulses
void ratio
radiation
high current
electron beams
microwaves
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
1 Citation (Scopus)

A fast multilayer window design tool, simulations and comparison with experiment

Whyte, C. G., Young, A. R., Rowlands, D. H., Robertson, C. W., Phelps, A. D. R., He, W. L., Cross, A. W. & Ronald, K., Apr 2008, Proceedings of the IEEE International Vacuum Electronics Conference, 2008: IVEC 2008. IEEE, p. 318-319 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

simulation
S matrix theory
reflectance
microwaves
operators
83 Citations (Scopus)
cusps
traveling wave amplifiers
magnetic coils
electron beams
accelerators
2 Citations (Scopus)

Broadband gyro-TWA with thermionic cusp gun: simulations and comparison with experiment

Whyte, C. G., Young, A. R., Rowlands, D. H., Robertson, C. W., Phelps, A. D. R., He, W. L., Cross, A. W., Ronald, K. & IEEE, 2 Jul 2008, p. 91-92. 1 p.

Research output: Contribution to conferencePaper

thermionics
cusps
broadband
simulation
superhigh frequencies
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
8 Downloads (Pure)

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)
10 Citations (Scopus)

Free-electron maser based on a cavity with two- and one-dimensional distributed feedback

Konoplev, I. V., Cross, A. W., MacInnes, P., He, W., Phelps, A. D. R., Whyte, C. G., Ronald, K. & Robertson, C. W., 27 May 2008, In : Applied Physics Letters. 92, 21, 3 p., 211501 .

Research output: Contribution to journalArticle

masers
free electrons
electron beams
cavities
pulses

Free-electron maser based on two-dimensional distributed feedback

Phelps, A. D. R., Konoplev, I. V., Cross, A. W., MacInnes, P., He, W., Ronald, K., Whyte, C. G., Robertson, C. W. & IEEE, 12 May 2008, p. 830-832. 2 p.

Research output: Contribution to conferencePaper

masers
free electrons
electron beams
pulses
millimeter waves
1 Citation (Scopus)

Laboratory reproduction of auroral magnetospheric radio wave sources

Ronald, K., Speirs, D., McConville, S. L., Gillespie, K. M., Phelps, A. D. R., Cross, A. W., Bingham, R. & Robertson, C. W., 15 Oct 2008, p. 188-196. 8 p.

Research output: Contribution to conferencePaper

radio waves
electron beams
Earth magnetosphere
electrons
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
2009
60 Citations (Scopus)
design optimization
cusps
millimeter waves
electron beams
optimization
64 Citations (Scopus)

Millimeter wave generation from a pseudospark-sourced electron beam

Yin, H., Cross, A. W., He, W., Phelps, A. D. R., Ronald, K., Bowes, D. & Robertson, C. W., 23 Jun 2009, In : Physics of Plasmas. 16, 6, 6 p., 063105.

Research output: Contribution to journalArticle

wave generation
millimeter waves
electron beams
backward waves
masers
12 Citations (Scopus)

Production of powerful spatially coherent radiation in planar and coaxial fem exploiting two-dimensional distributed feedback

Arzhannikov, A. V., Cross, A. W., Ginzburg, N. S., He, W., Kalinin, P. V., Konoplev, I. V., Kuznetsov, S. A., Peskov, N. Y., Phelps, A. D. R., Robertson, C. W., Ronald, K. & Whyte, C. G., 9 Sep 2009, In : IEEE Transactions on Plasma Science. 37, 9, p. 1792-1800 8 p.

Research output: Contribution to journalArticle

coherent radiation
masers
free electrons
relativistic electron beams
microwave frequencies
2010
1 Citation (Scopus)

5-fold helically corrugated waveguide dispersion measurements

McStravick, M., Ronald, K., Samsonov, S. V., Mishakin, S. V., He, W., Denisov, G. G., Whyte, C. G., Young, A. R., Bratman, V. L., Robertson, C. W., Cross, A. W., Kolganov, N. G., Phelps, A. D. R. & MacInnes, P., 2010, p. 1-2. 2 p.

Research output: Contribution to conferencePaper

corrugated waveguides
pulses
microwaves
pulse compression
compressors
107 Citations (Scopus)
196 Downloads (Pure)

A cusp electron gun for millimeter wave gyrodevices

Donaldson, C. R., He, W., Cross, A. W., Li, F., Phelps, A. D. R., Zhang, L., Ronald, K., Robertson, C., Whyte, C. & Young, A., 5 Apr 2010, In : Applied Physics Letters. 96, 14, 3 p., 141501.

Research output: Contribution to journalArticle

Open Access
File
electron guns
cusps
millimeter waves
thermionics
submillimeter waves

A laboratory study of mechanisms for auroral kilometric radiation generation

Ronald, K., Speirs, D. C., McConville, S. L., Gillespie, K. M., Phelps, A. D. R., Bingham, R., Cross, A. W., Robertson, C. W., Whyte, C. G., He, W., Cairns, R. A., Vorgul, I. & Kellett, B. J., 2010, p. 1-2. 2 p.

Research output: Contribution to conferencePaper

masers
magnetospheres
cyclotrons
radiation
simulation
8 Citations (Scopus)

A novel cylindrical TE2,1 mode converter

Constable, D. A., Fampris, X. S., Ronald, K., He, W., Whyte, C. G. & Robertson, C. W., 17 Sep 2010, In : Review of Scientific Instruments. 81, 9, p. 094702 10 p.

Research output: Contribution to journalArticle

converters
Circular waveguides
Rectangular waveguides
Bandwidth
Computer simulation

Electron gun design for large orbit axis encircling beams

Robertson, C. W., Whyte, C. G., Young, A. R., Phelps, A. D. R., He, W., Cross, A. W. & Ronald, K., 2010, p. 1-2. 2 p.

Research output: Contribution to conferencePaper

electron guns
electron beams
orbits
selectivity
1 Citation (Scopus)
corrugated waveguides
backward waves
frequency ranges
oscillators
electron guns
13 Citations (Scopus)

Experimental results on microwave pulse compression using helically corrugated waveguide

McStravick, M., Samsonov, S. V., Ronald, K., Mishakin, S. V., He, W., Denisov, G. G., Whyte, C. G., Bratman, V. L., Cross, A. W., Young, A. R., MacInnes, P., Robertson, C. W. & Phelps, A. D. R., 15 Sep 2010, In : Journal of Applied Physics. 108, 5, p. - 4 p.

Research output: Contribution to journalArticle

corrugated waveguides
pulse compression
sweep frequency
microwaves
wave packets
26 Citations (Scopus)

Generation of 3 GW microwave pulses in X-band from a combination of a relativistic backward-wave oscillator and a helical-waveguide compressor

Bratman, V. L., Denisov, G. G., Kolganov, N. G., Mishakin, S. V., Samsonov, S. V., Cross, A. W., He, W., Zhang, L., McStravick, M., Whyte, C. G., Young, A. R., Ronald, K., Robertson, C. W. & Phelps, A. D. R., Nov 2010, In : Physics of Plasmas. 17, 11, 3 p., 110703.

Research output: Contribution to journalArticle

backward waves
compressors
superhigh frequencies
oscillators
waveguides
2 Citations (Scopus)
masers
free electrons
high current
electron beams
circumferences
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
traveling wave amplifiers
waveguides
microwaves
simulation
computerized simulation

Surface field cavity based on a two-dimensional cylindrical lattice

Phelps, A. D. R., Konoplev, I. V., Fisher, L., Cross, A. W., Ronald, K., Robertson, C. W. & Thumm, M., 2010, p. 1-2. 2 p.

Research output: Contribution to conferencePaper

cavities
propagation
pulses
simulation