Development of a Hybrid Power Supply and RF Transmission Line for SANAEM RFQ Accelerator

TL;DR

This paper details the design and development of a hybrid power supply and RF transmission line system for the SANAEM RFQ accelerator, including custom components and their integration.

Contribution

It presents the first comprehensive design and production experience of a hybrid RF power supply and transmission line for a proton RFQ accelerator.

Findings

Successful development of a 6 kW solid state amplifier at 352.2 MHz.

Implementation of a 160 kW tetrode-based RF power stage.

Design of a custom circulator and RF transmission components.

Abstract

SANAEM Project Prometheus (SPP) has been building a proton beamline at MeV range. Its proton source, two solenoids, and a low energy diagnostic box have been already manufactured and installed. These are going to be followed by a 4-vane RFQ to be powered by two stage PSU. The first stage is a custom-built solid state amplifier providing 6 kW at 352.2 MHz operating frequency. The second stage, employing TH 595 tetrodes from Thales, will amplify this input to 160 kW in a short pulsed mode. The power transfer to the RFQ will be achieved by the means of a number of WR2300 full and half height waveguides, 3 1/8" rigid coaxial cables, joined by appropriate adapters and converters and by a custom design circulator. This paper summarizes the experience acquired during the design and the production of these components.