Search Results - "Phelps, AD"

High-gain wide-band gyrotron traveling wave amplifier with a helically corrugated waveguide by Bratman, VL, Cross, AW, Denisov, GG, He, W, Phelps, AD, Ronald, K, Samsonov, SV, Whyte, CG, Young, AR

“…First bandwidth measurements of a novel gyrotron amplifier are presented. The coupling between the second harmonic cyclotron mode of a gyrating electron beam…”
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The Rayleigh-like collapse of a conical bubble by Leighton, TG, Cox, BT, Phelps, AD

“…Key to the dynamics of the type of bubble collapse which is associated with such phenomena as sonoluminescence and the emission of strong rebound pressures…”
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High-resolution bubble sizing through detection of the subharmonic response with a two-frequency excitation technique by Phelps, Andy D., Leighton, Timothy G.

“…Sizing bubbles in fluid using a two-frequency excitation technique is not prone to the same drawbacks of some other sizing methods—it has a global maximum at…”
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The detection of tethered and rising bubbles using multiple acoustic techniques by Leighton, Timothy G., Ramble, David G., Phelps, Andy D.

“…There exists a range of acoustic techniques for characterizing bubble populations within liquids. Each technique has limitations, and complete characterization…”
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Experimental Operation of a Cyclotron Autoresonance Maser Oscillator at the Second Harmonic by Cooke, SJ, Cross, AW, He, W, Phelps, AD

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The use of a combination frequency technique to measure the surf zone bubble population by Phelps, Andy D., Ramble, David G., Leighton, Timothy G.

“…There are great benefits to sizing bubbles using a two frequency technique, which examines the appearance of sum-and-difference signals generated by the…”
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Oceanic bubble population measurements using a buoy-deployed combination frequency technique by Phelps, A.D., Leighton, T.G.

“…This paper presents the results of using a combination frequency acoustic technique to measure the near-surface bubble population in the open sea. The…”
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Self-amplification of coherent spontaneous emission in a cherenkov free-electron maser by Wiggins, SM, Jaroszynski, DA, McNeil, BW, Robb, GR, Aitken, P, Phelps, AD, Cross, AW, Ronald, K, Ginzburg, NS, Shpak, VG, Yalandin, MI, Shunailov, SA, Ulmaskulov, MR

“…Ultrashort pulses of microwave radiation have been produced in a dielectric-lined Cherenkov free-electron maser (FEM) amplifier. An intense initial seed pulse,…”
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Gyrotron Experiments Employing a Field Emission Array Cathode by Garven, M, Spark, SN, Cross, AW, Cooke, SJ, Phelps, AD

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Comparison of the abilities of eight acoustic techniques to detect and size a single bubble by Leighton, T.G., Phelps, A.D., Ramble, D.G., Sharpe, D.A.

“…This paper details the preliminary results from the Characterisation Of Bubbles Using Simulataneous Techniques (COBUST). There are a range of acoustic…”
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Stimulated Coherent Emission from Short Electron Bunches in Free Space by Robb, GR, Ginzburg, NS, Phelps, AD, Sergeev, AS

“…In previous papers stimulated coherent emission of short electron bunches (superradiance-SR) was considered in the frame of 1-D models. In the present work we…”
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On “The mechanism of subharmonic ultrasound modulation by forcibly oscillating bubbles” [ Ultrasonics 33 (1995) 341] by Leighton, T.G., Phelps, A.D.

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Effective coupling of cyclotron autoresonance maser and "gyrotron" modes on a phase-synchronized electron beam by Savilov, AV, Bratman, VL, Phelps, AD, Samsonov, SV

“…For a cyclotron resonance maser (CRM) with a helical axis-encircling electron beam, the possibility of a strong interaction between cutoff (gyrotron) and…”
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