Tube amplifiers and power supplies
- Kenneth Baptiste (LBNL)
An overview of high voltage power supplies for tetrode, IOT and klystron amplifiers (DC and pulsed power), with an introduction of basic concepts in power electronics, design specificities for RF applications, and illustrations of CERN-designed RF power converters.
Invited talk offered to Dr. Davide Aguglia, Electrical Power Converter Deputy group leader, and Fast Pulsed Converter section leader.
The Proton Power Upgrade (PPU) project at the Spallation Neutron Source (SNS) will double the available H- beam power from 1.4 to 2.8 MW by increasing the beam energy from 1.0 to 1.3 GeV and the beam current from 26 to 38 mA. The increase in beam current and energy drove the design decisions made for both the Normal Conducting Linac (NCL) and Superconducting Linac (SCL) Radio-frequency Systems...
In order to reach 5 MW proton beam power, the ESS linac will be powered by 155 RF transmitters using different technologies. Most of these transmitters will use klystrons as amplifiers, and more precisely six 3 MW, 352 MHz klystrons in the normal conducting linac, and 120 1.5 MW, 704 MHz klystrons in the superconducting linac.
The talk will give an overview of the ESS klystron-based systems,...