A5053092610- Particle accelerators and beam dynamics
- Gyrotron and Vacuum Electronics Research
- Particle Accelerators and Free-Electron Lasers
- Antenna Design and Analysis
- Superconducting Materials and Applications
- Radiation Therapy and Dosimetry
- Autonomous Vehicle Technology and Safety
- Antenna Design and Optimization
- Space Technology and Applications
- IPv6, Mobility, Handover, Networks, Security
- Wireless Body Area Networks
- GaN-based semiconductor devices and materials
- Microwave Engineering and Waveguides
- Advanced X-ray Imaging Techniques
- Acoustic Wave Resonator Technologies
- Nuclear and radioactivity studies
Los Alamos National Laboratory
2018-2024
We report the high gradient testing results of two single-cell off-axis coupled standing wave accelerating structures. Two brazed structures with same geometry were tested: one made pure copper (Cu) and a copper–silver (CuAg) alloy silver concentration 0.08%. A peak surface electric field 450 MV/m was achieved in CuAg structure for klystron input power 14.5 MW 1 μs pulse length, which 25% higher than Cu structure. The superb performance because major optimizations cavity's geometry: (1)...
This paper reports the design, fabrication, and results of high-gradient conditioning testing for a two-cell, <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>π</a:mi></a:math>-mode, standing wave normal-conducting prototype booster cavity proposed 3 GeV proton linac upgrade at Los Alamos Neutron Science Center. Increasing energy beam from existing 800 MeV to will improve resolution radiography by up 10 times. The boost can be achieved with compact radio-frequency...
High frequency tubes are limited on their power handling capabilities due to very small beam size. Typically, the cross section is chosen as half of minimum width tube i.e. size scales down linearly goes higher. In addition, velocity spread prominent in beams and, such, mostly dominated by emittance. One biggest challenges for high determine maximum allowable without significant current interception. This will enable operate with greatest possible and thus have both largest gain output...
We report the results of high gradient testing two single cell off axis coupled standing wave accelerating structures. Two brazed side structures with same geometry were tested one made pure copper Cu and a silver CuAg alloy concentration 0.08 percent. A peak surface electric field 450 MV per m was achieved in structure for klystron input power 14.5 MW 1 mirco s pulse length which 25 percent higher than structure. The superb performance because major optimizations cavity shunt impedance...
This paper describes the current status of newly commissioned C-band Engineering Test Facility in New Mexico (CERF-NM) at Los Alamos National Laboratory (LANL). At LANL, we designed and assembled a new test stand with goal to conduct high gradient breakdown studies frequencies (5.712 GHz). The is powered by 50 MW, 5.712 GHz Canon klystron. It capable conditioning single cell accelerating cavities for operation surface electric fields excess 300 MV/m. first two have just undergone power...