Mitchell Schneider
YOU?
Author Swipe
View article: Phase Transition Dynamics Induced by Strong Radio-Frequency Fields in ReBCO High Temperature Superconductors
Phase Transition Dynamics Induced by Strong Radio-Frequency Fields in ReBCO High Temperature Superconductors Open
Probing the dynamics of superconductor phase transitions induced by strong electromagnetic fields is vital to designing high power devices leveraging these materials. The development of high temperature superconductors (HTS) is particularl…
View article: Design, construction, and test of compact, distributed-charge, X-band accelerator systems that enable image-guided, VHEE FLASH radiotherapy
Design, construction, and test of compact, distributed-charge, X-band accelerator systems that enable image-guided, VHEE FLASH radiotherapy Open
The design and optimization of laser-Compton x-ray systems based on compact distributed charge accelerator structures can enable micron-scale imaging of disease and the concomitant production of beams of Very High Energy Electrons (VHEEs) …
View article: The need for Nb3Sn coated Cu cavities for future accelerators
The need for Nb3Sn coated Cu cavities for future accelerators Open
Based on current efforts in the U.S. on the novel concept of parallel-feed RF accelerator structures, and in the U.S. and abroad in producing Nb3Sn films on either Cu or bronze, we rec-ommend that the Particle Physics community foster R&D …
View article: Effect of material composition of diamond field emission array cathodes on quality of transversely shaped beams
Effect of material composition of diamond field emission array cathodes on quality of transversely shaped beams Open
Diamond field emitter array field emission cathodes (DFEA FECs) are attractive for the next generation of injectors due to their ability to produce transversely shaped beams without the need for complex masking or laser schemes. However, r…
View article: High gradient off-axis coupled C-band Cu and CuAg accelerating structures
High gradient off-axis coupled C-band Cu and CuAg accelerating structures Open
We report the high gradient testing results of two single-cell off-axis coupled standing wave accelerating structures. Two brazed standing wave off-axis coupled structures with the same geometry were tested: one made of pure copper (Cu) an…
View article: High Gradient Testing of off-Axis Coupled C-band Cu and CuAg Accelerating Structures
High Gradient Testing of off-Axis Coupled C-band Cu and CuAg Accelerating Structures Open
We report the results of high gradient testing of two single cell off axis coupled standing wave accelerating structures. Two brazed standing wave side coupled structures with the same geometry were tested one made of pure copper Cu and on…
View article: Evaluating Effects of Geometry and Material Composition on Production of Transversely Shaped Beams from Diamond Field Emission Array Cathodes
Evaluating Effects of Geometry and Material Composition on Production of Transversely Shaped Beams from Diamond Field Emission Array Cathodes Open
Field emission cathodes (FECs) are attractive for the next generation of injectors due to their ability to provide high current density bright beams with low intrinsic emittance. One application of FECs worthy of special attention is to pr…
View article: FEgen (v.1): Field Emission Distribution Generator Freeware Based on Fowler–Nordheim Equation
FEgen (v.1): Field Emission Distribution Generator Freeware Based on Fowler–Nordheim Equation Open
This work presents an open-source code, FEgen, that generates initial field emission distributions based on the time-dependent Fowler–Nordheim equation. Current in-demand and open-source beam tracking software—such as ASTRA, IMPACT-T, and …
View article: Traveling wakefield tube: THz source powered by nonrelativistic electron beam
Traveling wakefield tube: THz source powered by nonrelativistic electron beam Open
High peak power, tunable, narrowband terahertz emitters are becoming sought after given their portability, efficiency, and ability to be deployed in the field for industrial, medical, and military applications. The use of accelerator syste…
View article: A Coupon Tester for Normal Conducting High-Gradient Materials
A Coupon Tester for Normal Conducting High-Gradient Materials Open
A coupon tester is an RF structure used to subject a material sample to very high RF fields, with the fields on the sample, or coupon, being higher than elsewhere in the cavity. To date, most such cavities were originally intended to explo…
View article: Status of the C-Band Engineering Research Facility (CERF-NM) Test Stand Development at LANL
Status of the C-Band Engineering Research Facility (CERF-NM) Test Stand Development at LANL Open
C-Band structures research is of increasing interest to the accelerator community. The RF frequency range of 4-6 GHz gives the opportunity to achieve significant increase in the accelerating gradient, and having the wakefields at the manag…
View article: Design, Fabrication, and Commissioning of the Mode Launchers for High Gradient C-Band Cavity Testing at LANL
Design, Fabrication, and Commissioning of the Mode Launchers for High Gradient C-Band Cavity Testing at LANL Open
This poster will report on the design, fabrication, and operation status of the new high gradient C-band TM01 mode launchers for the high gradient C-band test stand at LANL. Modern applications require accelerators with optimized cost of c…
View article: First C-Band High Gradient Cavity Testing Results at LANL
First C-Band High Gradient Cavity Testing Results at LANL Open
This poster will report the results of high gradient testing of the two proton β=0.5 C-band accelerating cavities. The cavities for proton acceleration were fabricated at SLAC and tested at high gradient C-band accelerator test stand at LA…
View article: RF Design of an X-Band TM02 Mode Cavity for Field Emitter Testing
RF Design of an X-Band TM02 Mode Cavity for Field Emitter Testing Open
Planar polycrystalline synthetic diamond with nitrogen-doping/incorporation was found to be a remarkable field emitter. It is capable of generating a high charge beam and handling moderate vacuum conditions. Integrating it with an efficien…
View article: FEbreak: A Comprehensive Diagnostic and Automated Conditioning Interface for Analysis of Breakdown and Dark Current Effects
FEbreak: A Comprehensive Diagnostic and Automated Conditioning Interface for Analysis of Breakdown and Dark Current Effects Open
As the next generation of accelerator technology pushes towards being able to achieve higher and higher gradients there is a need to develop high-frequency structures that can support these fields *. The conditioning process of the structu…
View article: FEgen (v.1): Field Emission Distribution Generator Freeware Based on Fowler-Nordheim Equation
FEgen (v.1): Field Emission Distribution Generator Freeware Based on Fowler-Nordheim Equation Open
FEgen is a comprehensive user interface designed to create initial particle distributions for field emission sources operated in rf guns (additional capability exists for dc pulsed power systems).
View article: High power conditioning and benchmarking of planar nitrogen-incorporated ultrananocrystalline diamond field emission electron source
High power conditioning and benchmarking of planar nitrogen-incorporated ultrananocrystalline diamond field emission electron source Open
Planar nitrogen-incorporated ultrananocrystalline diamond [(N)UNCD] has emerged as a unique field emission source attractive for accelerator applications because of its capability to generate a high charge beam and handle moderate vacuum c…
View article: Systematic benchmarking of planar nitrogen-incorporated ultrananocrystalline diamond field emission electron source: rf conditioning and beam spatio-temporal characteristics
Systematic benchmarking of planar nitrogen-incorporated ultrananocrystalline diamond field emission electron source: rf conditioning and beam spatio-temporal characteristics Open
Planar nitrogen-incorporated ultrananocrystalline diamond, (N)UNCD, has emerged as a unique field emission source attractive for accelerator applications because of its capability to generate high charge beam and handle moderate vacuum con…
View article: Systematic Benchmarking of a Planar (N)UNCD Field Emission Cathode
Systematic Benchmarking of a Planar (N)UNCD Field Emission Cathode Open
Planar nitrogen-incorporated ultrananocrystalline diamond, (N)UNCD, is a unique and attractive field emission source because of the capability to generate high charge beam, the simplicity of production without shaped emitters, and the ease…