32 citations · 116 across the 16 of their papers we have counts for
16 papers
Experiments On A Conduction Cooled Superconducting Radio Frequency Cavity With Field Emission Cathode
Y. Ji, R. C. Dhuley, C. Edward +5
To achieve Ampere-class electron beam accelerators the pulse delivery rate need to be much higher than the typical photo injector repetition rate of the order of a few kilohertz. W…
Design of a high-power compact SRF linac for industrial applications of e-beam irradiation
J. C. T. Thangaraj, R. C. Dhuley
Fermilab has developed a novel concept for an industrial electron linac using Nb3Sn coating technology and conduction cooling. These conduction-cooled linacs can generate electron…
High Efficiency, Low Cost, RF Sources for Accelerators and Colliders
R. Lawrence Ives, Michael Read, Thuc Bui +9
Several high efficiency, low cost, RF sources are in development or recently completed. All are designed to provide operating efficiencies exceeding 80% and provide more than 100 k…
High Power Superconducting Electron Linear Accelerators For Industrial Application
Jayakar Thangaraj
Fermilab is executing a technology development program to develop a compact yet powerful electron accelerator. We are leveraging R&D breakthroughs in SRF cavities, cost-effective r…
Development of a cryocooler conduction-cooled 650 MHz SRF cavity operating at ~10 MV/m cw accelerating gradient
R. C. Dhuley, S. Posen, M. I. Geelhoed +1
SRF cavities for particle acceleration are conventionally operated immersed in a bath of liquid helium at 4.2 K and below. Although this cooling configuration is practically and ec…
A Field-Enhanced Conduction-Cooled Superconducting Cavity for High-Repetition-Rate Ultrafast Electron Bunch Generation
Osama Mohsen, Daniel Mihalcea, Nathan Tom +9
High-repetition-rate sources of bright electron bunches have a wide range of applications. They can directly be employed as probes in electron-scattering setups, or serve as a back…
First demonstration of a cryocooler conduction cooled superconducting radiofrequency cavity operating at practical cw accelerating gradients
R. C. Dhuley, S. Posen, M. I. Geelhoed +2
We demonstrate practical accelerating gradients on a superconducting radiofrequency (SRF) accelerator cavity with cryocooler conduction cooling, a cooling technique that does not i…
Micro-bunching for generating tunable narrow-band THz radiation at the FAST photoinjector
J. Hyun, P. Piot, T. Sen +1
This paper presents expected THz radiation spectra emitted by micro-bunched electron beams produced using a slit-mask placed within a magnetic chicane in the FAST (Fermilab Acceler…
Micro-Bunched Beam Production at FAST for Narrow Band THz Generation Using a Slit-Mask
J. Hyun, D. Crawford, D. Edstrom +5
We discuss simulations and experiments on creating micro-bunch beams for generating narrow band THz radiation at the Fermilab Accelerator Science and Technology (FAST) facility. Th…
An optical and terahertz instrumentation system at the FAST linac at Fermilab
R. Thurman-Keup, A. H. Lumpkin, J. Thangaraj
FAST is a facility at Fermilab that consists of a photoinjector, two superconducting capture cavities, one superconducting ILC-style cryomodule, and a small ring for studying non-l…
Initial Beam Dynamics Simulations of a High-Average-Current Field-Emission Electron Source in a Superconducting RadioFrequency Gun
O. Mohsen, I. Gonin, R. Kephart +5
High-power electron beams are sought-after tools in support to a wide array of societal applications. This paper investigates the production of high-power electron beams by combini…
TeV/m Nano-Accelerator: Current Status of CNT-Channeling Acceleration Experiment
Y. M. Shin, A. H. Lumpkin, J. C. Thangaraj +2
Crystal channeling technology has offered various opportunities in the accelerator community with a viability of ultrahigh gradient (TV/m) acceleration for future HEP collider. The…
Ampère-Class Pulsed Field Emission from Carbon-Nanotube Cathodes in a Radiofrequency Resonator
D. Mihalcea, L. Faillace, J. Hartzell +5
Pulsed field emission from cold carbon-nanotube cathodes placed in a radiofrequency resonant cavity was observed. The cathodes were located on the backplate of a conventional $1+\f…
THz-radiation production using dispersively-selected flat electron bunches
Jayakar Thangaraj, Philippe Piot
We propose an alternative scheme for a tunable THz radiation source generated by relativistic electron bunches. This technique relies on the combination of dispersive selection and…
Formation and Acceleration of Uniformly-Filled Ellipsoidal Electron Bunches Obtained via Space-Charge-Driven Expansion from a Cesium-Telluride Photocathode
P. Piot, Y. -E Sun, T. J. Maxwell +3
We report the experimental generation, acceleration and characterization of a uniformly-filled electron bunch obtained via space-charge-driven expansion (often referred to as "blow…
Experimental study of coherent synchrotron radiation in the emittance exchange line at the A0-photoinjector
Jayakar C. T. Thangaraj, R. Thurman-Keup, A. Johnson +7
Next generation accelerators will require a high current, low emittance beam with a low energy spread. Such accelerators will employ advanced beam conditioning systems such as emit…