A5104078327- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Gyrotron and Vacuum Electronics Research
- Superconducting Materials and Applications
- Pulsed Power Technology Applications
- Magnetic confinement fusion research
- Acoustic Wave Resonator Technologies
- Plasma Diagnostics and Applications
- Microwave Engineering and Waveguides
- Particle Detector Development and Performance
- Superconducting and THz Device Technology
- Electromagnetic Launch and Propulsion Technology
- GaN-based semiconductor devices and materials
- Mechanical and Optical Resonators
- Energy Harvesting in Wireless Networks
- Spacecraft and Cryogenic Technologies
- Distributed and Parallel Computing Systems
- Electromagnetic Compatibility and Measurements
- Quantum Information and Cryptography
- Electrostatic Discharge in Electronics
- Laser-Plasma Interactions and Diagnostics
- Induction Heating and Inverter Technology
- Advanced Fiber Laser Technologies
- Metal and Thin Film Mechanics
- Spacecraft Design and Technology
Fermi National Accelerator Laboratory
2016-2025
Office of Science
2024
Fermi Research Alliance
2009-2022
Laboratoire de Physique Subatomique et de Cosmologie
2021
Thomas Jefferson National Accelerator Facility
2015
TechLab (United States)
2010
Creative Aero Engineering Solutions (United States)
2010
Euclid Techlabs (United States)
2010
High Energy Accelerator Research Organization
2009
Yale University
2007-2009
Reciprocity is a fundamental physical principle that roots in the time‐reversal symmetry of laws. It allows making predictions on any arbitrary complex system's response and operation hence simplifies analysis. However, there are many practical situations which it advantageous to break reciprocity, e.g., isolators preventing wave scattering back lasers generators, full‐duplex systems for multiplexing transmission receiving same channel, nonreciprocal cavity excitation, protection fragile...
We present the technical and engineering design of a medium energy (10 MeV) high average power (1000 kW) electron-beam accelerator intended for irradiation treatment high-volume industrial municipal wastewater. The uses ${\mathrm{Nb}}_{3}\mathrm{Sn}$ superconducting radio-frequency (SRF) cavity producing beam with $>90%$ rf to efficiency. is tailored settings by adopting cryocooler conduction-cooling technique SRF instead conventional liquid helium bath cryosystem. supplemented detailed...
Abstract Frequency conversion between microwave and optical photons is a key enabling technology to create links superconducting quantum processors realize distributed networks. We propose microwave-optical transduction platform based on long-coherence time radio-frequency (SRF) cavities coupled electro-optic mitigate the loss mechanisms that limit attainment of high efficiency. optimize field overlap coupling losses in design while achieving long photon lifetime at milli-Kelvin...
This is a Snowmass white paper on the utility of existing and future superconducting cavities to probe fundamental physics. Superconducting radio frequency (SRF) cavity technology has seen tremendous progress in past decades, as tool for accelerator science. With advances spear-headed by SQMS center at Fermilab, they are now being brought quantum regime becoming science thanks high degree coherence. The same quality factor can be leveraged search new physics, including searches particles,...
The new versions of the SuperLANS code for evaluation monopole modes in an axisymmetric cavity with lossy filling and multipole inhomogeneous ferrite dielectric are presented.
Primary storages based on a linear transformer scheme were developed long ago. In this scheme, the secondary turn only has to be insulated from high output voltage. Seven years ago at High Current Electronics Institute (HCEI) primary storage and called Linear Transformer Driver (LTD) stage was designed. LTD stages, turn, capacitors with switches, core, outer conductor of are integrated into cavity representing one separate building block storage. The body keeps ground potential during shot...
The main advantage of the primary storage based on linear transformer scheme is ground potential capacitor bodies during shot, allowing exclusion total output voltage insulation highest stages, and to trigger all stages simultaneously by using an external pulse. problem was build a fast driver (LTD), providing both high efficiency energy transfer into secondary turn current rise time below /spl sim/1 CLs, because relatively inductance caps switches. key elements LTD described are HAEFELY...
A high-efficiency, high-power magnicon at 34.272 GHz has been designed and built as a microwave source to develop radio frequency (RF) technology for future multi-TeV electron-positron linear colliders. To this technology, new RF is being perfected necessary tests of accelerating structures, pulse compressors, components, determine limits breakdown metal fatigue. The design amplifier tube, well the first experimental results are presented.
The main features of the code SUPERLANS are: an evaluation both standing waves in axisymmetrical cavities and traveling periodic structures simultaneous calculation number modes (or dispersion curves) arbitrary spectra domain. To increase efficiency following methods are used: isoparametric second-order finite elements for field approximation, subspace iteration method determination spectra. accuracy near axis coordinates (Z, R/sup 2/) used. There is a version IBM PC/AT with interactive...
A review of the first experiments with GIT-4 generator is given. based on results obtained previously Gamma (1985) and Marina (1986) generators has operated since December 1986. designed to test concept a terawatt pulsed-power direct charging an inductive storage from Marx primary store using plasma-opening switch (POS) at currents up several mega-amperes. Such need POS essentially microsecond conduction times. In reviewed, output powers 2.5 TW in region were current levels 1 MA.< <ETX...
Fast phase shifters are described that use a novel barium strontium titanate ceramic can rapidly change its dielectric constant as an external bias voltage is changed. These promise to reduce by $\ensuremath{\sim}10$ times the power requirements for rf source needed drive energy recovery linac (ERL). Such will be coupled with superconducting radiofrequency cavities so tune them compensate instabilities, whether beam-driven or those caused microphonics. The most promising design presented,...
A total of ten jacketed single-spoke resonators type 1 (SSR1) have been fabricated for Fermilab' injection experiment (PIP2IT). PIP2IT is a test bed Fermilab's future accelerator named proton improvement plan II that currently under development. SSR1 cavities operate at 325 MHz to accelerate beam relative (to speed light) velocity (β = 0.22). In this paper, we present experience in developing those spoke starting from the design and analysis phase, fabrication extensive testing qualify...
We present a design study for an X-band frequency-doubling magnicon amplifier driven by 500 keV, 172 A beam from field-emission diode. This makes use of steady-state particle simulations employing the realistic fields cavities connected tunnels, and includes effects finite electron diameter. The propagate through sequence deflection at 5.7 GHz, followed output cavity that operates 11.4 GHz. contain synchronously rotating TM modes. progressively spin up transverse momentum, until /spl...
The report presents experimental results obtained on 7 GHz pulsed magnicon amplifier with a new version of the output cavity. It also outlines plans for investigation steps to follow. This was developed at Budker INP as prototype microwave power source next generations linear colliders. tube operates in frequency-doubling mode drive signal. At present following parameters are achieved: maximum 55 MW, efficiency 56%, gain 72 dB and pulse width 1.1 microseconds.
Lithium Niobate is an electro-optic material with many applications in microwave signal processing, communication, quantum sensing, and computing. In this letter, we present findings on evaluating the complex electromagnetic permittivity of lithium niobate at millikelvin temperatures. Measurements are carried out using a resonant-type method superconducting radio-frequency (SRF) cavity operating 7 GHz designed to characterize anisotropic dielectrics. The relative tensor loss tangent measured...
Recent commissioning of a 45-MW peak power 34.3 GHz magnicon amplifier makes possible, for the first time, high-power tests components and structures possible future high-gradient millimeter-wave linear accelerator. A brief survey is presented status this Ka-band component development efforts now underway.