Speaker
Description
The high-power radio frequency (HPRF) test facility that was developed at the Los Alamos Neutron Science Center (LANSCE) to evaluate components of a RF Solid-State Amplifier (SSA) system operating at 805 MHz has had significant results towards the targeted final output power of 1.25 MW. The system is powered by a 100 V DC supply and stabilized with a 0.1 F capacitor bank to support transient power demands, capable of storing up to 1.125 kJ of energy. The SSA utilizes Gallium Nitride (GaN) on Silicon
Carbide (SiC) high electron mobility transistors (HEMTs). Multiple HEMT amplifier modules will be power combined to achieve the full 1.25 MW output, with the aim of enhancing reliability, modularity, and maintainability in the current accelerator RF infrastructure. The system employs water cooling to manage thermal loads and ensure stable operation under high duty-factor pulsed conditions. The progress from this test configuration supports ongoing evaluation of solid-state amplifier performance, thermal handling, and integration with RF passive components under realistic operational conditions.
Funding Agency
*Work was performed under the auspices of the US Department of Energy by Triad National Security, LLC, under contract 89233218CNA000001.
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