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Research Output 2004 2019

38 Downloads (Pure)

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
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
15 Downloads (Pure)
Open Access
File
3D printers
Periodic structures
Millimeter waves
Printing
Microwaves
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
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

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
1 Citation (Scopus)
9 Downloads (Pure)

Additive manufacturing method of prototyping novel mm-wave and THz sources

Phipps, A. R., MacLachlan, A. J., Robertson, C. W., Cross, A. W. & Phelps, A. D. R., 7 Mar 2017, 2016 IEEE 9th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies (UCMMT). Piscataway,N.J: Institute of Electrical and Electronics Engineers Inc., p. 238-240 3 p.

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

Open Access
File
3D printers
manufacturing
coherent sources
Electromagnetic fields
Electron beams
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
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

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
1 Downloads (Pure)

Apparatus for investigating non-linear microwave interactions in magnetised plasma

Bingham, R., Ronald, K., Whyte, C. G., Wilson, K., Phelps, A. D. R., Cairns, R. A., Eliasson, B., Koepke, M. E., Cross, A. W., Speirs, D. C., Robertson, C. W., MacInnes, P. & Bamford, R., 8 Jul 2019. 1 p.

Research output: Contribution to conferencePaper

Open Access
File
microwaves
interactions
laser plasma interactions
plasma dynamics
ion acoustic waves
17 Downloads (Pure)

Apparatus for investigating non-linear microwave interactions in magnetised plasma

Ronald, K., Phelps, A. D. R., Cairns, R. A., Bingham, R., Eliasson, B., Koepke, M. E., Cross, A. W., Speirs, D. C., Robertson, C. W. & Whyte, C. G., 31 Oct 2018, 45th EPS Conference on Plasma Physics (EPS 2018) . Coda, S., Lapenta, G., Michaut, C., Berndt, J., Mantsinen, M. & Weber, S. (eds.). p. 961-964 4 p.

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

Open Access
File
laser plasma interactions
electromagnetic radiation
microwaves
fusion reactors
wave interaction

Application of a pseudospark-generated electron beam to a 200 GHz backward wave oscillator

Yin, H., Bowes, D., Cross, AW., He, W., Ronald, K., Liu, G., Yin, Y., Zhang, L., Speirs, DC., Robertson, C. W. & Phelps, A. D. R., 28 May 2015, p. 1-1. 1 p.

Research output: Contribution to conferenceAbstract

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
83 Citations (Scopus)
cusps
traveling wave amplifiers
magnetic coils
electron beams
accelerators
1 Citation (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
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

Cherenkov maser experiments based on a 2D periodic surface lattice

Phipps, AR., MacLachlan, AJ., Robertson, C. W., Konoplev, IV., Ronald, K., Cross, AW., Whyte, CG. & Phelps, ADR., 24 May 2015, Abstracts IEEE International Conference on Plasma Sciences (ICOPS). Piscataway: IEEE, p. 1 1 p.

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

masers
cavities
beam interactions
wave interaction
electromagnetic radiation
3 Citations (Scopus)

Circular polariser for use in a gyro-travelling wave amplifier

Robertson, C., Young, A., Ronald, K., Cross, A. & Whyte, C., 20 Aug 2013, In : IET Microwaves, Antennas & Propagation. 7, 11, p. 942-948 7 p.

Research output: Contribution to journalArticle

traveling wave amplifiers
computerized simulation
corrugated waveguides
broadband
polarized radiation

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
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
22 Citations (Scopus)
172 Downloads (Pure)

Cylindrical, periodic surface lattice — theory, dispersion analysis, and experiment

Konoplev, I. V., MacLachlan, A. J., Robertson, C. W., Cross, A. W. & Phelps, A. D. R., Sep 2012, In : Applied Physics Letters. 101, 12, 5 p., 121111.

Research output: Contribution to journalArticle

Open Access
File
electromagnetic properties
wave equations
topology
impedance
coatings
45 Citations (Scopus)
95 Downloads (Pure)
Open Access
File
coherent radiation
cavities
waveguides
Q factors
cut-off
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
68 Downloads (Pure)

Design and experiments of a five-fold helically corrugated waveguide for microwave pulse compression

Zhang, L., Mishakin, S. V., He, W., Samsonov, S. V., Cross, A. W., Denisov, G. G., McStravick, M., Bratman, V. L., Whyte, C. G., Robertson, C. W., Young, A. R., Yin, H., Ronald, K., Macinnes, P. & Phelps, A. D. R., 11 Nov 2015, IRMMW-THz 2015: 40th International Conference on Infrared, Millimeter, and Terahertz Waves. Piscataway, NJ.: IEEE, p. 1-2 2 p.

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

Open Access
File
corrugated waveguides
Pulse compression
pulse compression
Waveguides
Microwaves
60 Citations (Scopus)
design optimization
cusps
millimeter waves
electron beams
optimization

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
1 Citation (Scopus)

Design of a triodelike electron gun for millimeter-wave gyrodevices

Robertson, C., Young, A., Ronald, K., Cross, A. & Whyte, C., Sep 2012, In : IEEE Transactions on Electron Devices. 59, 9, p. 2520 - 2523 4 p.

Research output: Contribution to journalArticle

Electron guns
Millimeter waves
Triodes
8 Citations (Scopus)
12 Downloads (Pure)
Open Access
File
Periodic structures
3D printers
printing
Printing
Electron beams
25 Citations (Scopus)
electron flux
electron beams
magnetic mirrors
electron guns
pitch (inclination)

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
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

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
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
15 Citations (Scopus)
130 Downloads (Pure)

Experimental study of microwave pulse compression using a five-fold helically corrugated waveguide

Zhang, L., Mishakin, S. V., He, W., Samsonov, S. V., McStravick, M., Denisov, G. G., Cross, A. W., Bratman, V. L., Whyte, C. G., Robertson, C. W., Young, A. R., Ronald, K. & Phelps, A. D. R., 30 Jan 2015, In : IEEE Transactions on Microwave Theory and Techniques . 63, 3, p. 1090-1096 7 p., 7027876.

Research output: Contribution to journalArticle

Open Access
File
corrugated waveguides
Pulse compression
pulse compression
Waveguides
Microwaves

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
9 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

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

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
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
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
88 Citations (Scopus)
traveling wave amplifiers
thermionic cathodes
corrugated waveguides
electron guns
electron beams
2 Citations (Scopus)
masers
free electrons
high current
electron beams
circumferences
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