Speakers
Description
The Los Alamos Neutron Science Center (LANSCE) accelerator is an 800 MeV, high-power proton machine that services numerous experimental areas that include proton radiography, spallation neutron source targets, and an end station dedicated to isotope production. Now in its sixth decade of operation, LANSCE accelerates its H- beam from 100 to 800 MeV using an 805 MHz coupled cavity linear accelerator that is powered by 44, 1.25 MW 805 MHz klystrons that were developed 58 years ago. With operations planned for several more decades, modernization of the LANSCE 805 MHz high-power radiofrequency (HPRF) system is needed. Los Alamos has embarked on a forward-looking study to assess the wisdom of utilizing high-power solid-state amplifiers for this effort. Leading edge, high voltage Gallium Nitride (GaN) on Silicon Carbide (SiC) high electron mobility transistors (HEMT) are now capable of operating at multi-kilowatt peak powers (5 kW in this case) at the pulse width (1 ms) and repetition rate (120 Hz) needed by LANSCE. We will give an overview of the status of this project and how it fits in with LANSCE 805 MHz HPRF system modernization efforts.
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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