Search Results - "Carlsten, Bruce"

High Efficiency Compact Microwave Sources Using Electrostatic Potential Depression by Xu, Haoran, Marksteiner, Quinn R., Carlsten, Bruce E.

“…In this article, we report theoretical and design studies on the application of an electrostatic potential depression (EPD) on two types of traditional…”
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Beam Transport and Beam-Current Loss in Emittance-Dominated High-Frequency Tubes by Zuboraj, Muhammed, Carlsten, Bruce E.

“…Emittance effects are becoming increasingly important in high-frequency electron devices, especially in recent and proposed high-frequency traveling wave tubes…”
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Bi-resonant klynac by Carlsten, Bruce E., Nichols, Kimberley E.

“…Here we present the first analysis of a new device called the bi-resonant klynac, which is a combined klystron and linac. In a bi-resonant klynac, all RF…”
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Wilson Prize article: Transverse phase-space manipulations in electron accelerators by Carlsten, Bruce E.

“…I am honored and grateful that my contributions to phase-space manipulations in general, and emittance compensation specifically, have been recognized by the…”
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X-ray Free Electron Laser Accelerator Lattice Design Using Laser-Assisted Bunch Compression by Xu, Haoran, Anisimov, Petr M., Carlsten, Bruce E., Duffy, Leanne D., Marksteiner, Quinn R., Robles, River R.

“…We report the start-to-end modeling of our accelerator lattice design employing a laser-assisted bunch compression (LABC) scheme in an X-ray free electron…”
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Emittance Effects on Gain in W -Band TWTs by Carlsten, Bruce E., Nichols, Kimberley E., Shchegolkov, Dmitry Yu, Simakov, Evgenya I.

“…We consider the main effects of beam emittance on W-band traveling-wave tube (TWT) performance and gain. Specifically, we consider a representative dielectric…”
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Radiation-Belt Remediation Using Space-Based Antennas and Electron Beams by Carlsten, Bruce E., Colestock, Patrick L., Cunningham, Gregory S., Delzanno, Gian Luca, Dors, Eric E., Holloway, Michael A., Jeffery, Christopher A., Lewellen, John W., Marksteiner, Quinn R., Nguyen, Dinh C., Reeves, Geoffrey D., Shipman, Kevin A.

“…Energetic electrons can be trapped in Earth's magnetic field, forming the radiation belts (also known as the Van Allen Belts). These electrons, which can…”
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Response to Comment on "Radiation-Belt Remediation Using Space-Based Antennas and Electron Beams" by G. Ganguli and C. Crabtree by Carlsten, Bruce E., Nguyen, Dinh C., Reeves, Geoffrey D., Shipman, Kevin A., Colestock, Patrick L., Cunningham, Gregory S., Delzanno, Gian Luca, Dors, Eric E., Holloway, Michael A., Jeffery, Christopher A., Lewellen, John W., Marksteiner, Quinn R.

“…Ganguli and Crabtree have written a comment about a recent article by the authors listed above on radiation-belt remediation. They have objected to our…”
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Space-charge effects in low-energy flat-beam transforms by Moroch, Scott B, Koeth, Timothy W, Carlsten, Bruce E

“…Abstract Flat-beam transforms (FBTs) provide a technique for controlling the emittance partitioning between the beam’s two transverse dimensions. To date,…”
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Design, Fabrication, and Cold Testing of a Ka-Band kW-Class High-Bandwidth Dielectric-Loaded Traveling-Wave Tube by Simakov, Evgenya I., Carlsten, Bruce E., Krawczyk, Frank L., Nichols, Kimberley E., Romero, William P., Zuboraj, Muhammed

“…This paper describes the design, fabrication, and initial testing of a Ka-band dielectric-loaded traveling-wave tube (TWT) with very high bandwidth…”
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High-Brightness Beam Technology Development for a Future Dynamic Mesoscale Materials Science Capability by Carlsten, Bruce E., Anisimov, Petr M., Barnes, Cris W., Marksteiner, Quinn R., Robles, River R., Yampolsky, Nikolai

“…A future capability in dynamic mesoscale materials science is needed to study the limitations of materials under irreversible and extreme conditions, where…”
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Using Emittance Partitioning Instead of a Laser Heater to Suppress the Microbunch Instability by Carlsten, Bruce E., Bishofberger, Kip A., Duffy, Leanne D., Lewellen, John W., Marksteiner, Quinn R., Yampolsky, Nikolai A.

“…At the Linac Coherent Light Source (LCLS) X-ray free-electron laser, a laser "heater" is used to generate an uncorrelated 20-keV energy spread on an electron…”
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Two dimensional model for coherent synchrotron radiation by Huang, Chengkun, Kwan, Thomas J. T., Carlsten, Bruce E.

“…Understanding coherent synchrotron radiation (CSR) effects in a bunch compressor requires an accurate model accounting for the realistic beam shape and…”
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Space-Borne Electron Accelerator Design by Lewellen, John W., Buechler, Cynthia E., Carlsten, Bruce E., Dale, Gregory E., Holloway, Michael A., Patrick, Douglas E., Storms, Steven A., Nguyen, Dinh C.

“…Renewed interest in active experiments with relativistic particle beams in space has led to the development of solid-state radio-frequency (RF) linear…”
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Using an emittance exchanger as a bunch compressor by Carlsten, Bruce E., Bishofberger, Kip A., Russell, Steven J., Yampolsky, Nikolai A.

“…An Emittance EXchanger (EEX), like a chicane, can be used for bunch compression. However, it offers a unique characteristic: the R56 term in an EEX vanishes,…”
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Error Tolerant Method of Dielectric Permittivity Determination Using a TE01 Mode in a Circular Waveguide at the -Band by Choi, Hong Eun, Choi, Wonjin, Simakov, Evgenya I., Zuboraj, Muhammed, Carlsten, Bruce E, Choi, EunMi

“…We propose a new method for the precise measurement of dielectric permittivity of ceramics and polymers at millimeter-wave frequencies that employs the TE 01…”
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Arbitrary emittance partitioning between any two dimensions for electron beams by Carlsten, Bruce E., Bishofberger, Kip A., Duffy, Leanne D., Russell, Steven J., Ryne, Robert D., Yampolsky, Nikolai A., Dragt, Alex J.

“…The flat-beam transform (FBT) for round symmetric beams can be extended using the concept of eigenemittances. By tailoring the initial beam conditions at the…”
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Design and Fabrication of Aka-Band Dielectric-Loaded Traveling-Wave Tube by Simakov, Evgenya I., Carlsten, Bruce E., Krawczyk, Frank L., Nichols, Kimberley E., Romero, William P., Zuborai, Muhammed R.A.

“…We have designed, fabricated, and are currently testing a Ka-band dielectric-loaded traveling-wave tube with a very high bandwidth. Applications for high power…”
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Emittance growth analysis of electon beams due to nonlinear focusing fields of PPM magnets by Nichols, Kimberley E., Carlsten, Bruce C.

“…Emittance increasingly becomes an issue for high-frequency RF amplifiers as dimensions become minute. This is currently an active area of research with…”
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Design and simulation of a novel klynac device for generation of bremsstrahlung radiation by Nichols, Kimberley E., Carlsten, Bruce C., Malyzhenkov, Alexander

“…Bremsstrahlung radiation is highly sought after for endless applications from medical and biological to military uses. Bremsstrahlung radiation is typically…”
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