Thermal analysis for the high duty cycle PIMS accelerator

Abstract

To develop the high power proton linear accelerator for the Accelerator Driven System (ADS) program, the preliminary design of the Pi mode accelerating structure (PIMS) has been carried out. It is estimated that PIMS would heat up to 80 °C for low duty cycle (0.1%) without water-cooling, which is not acceptable, thus water-cooling is demanded. The structure stability for the high duty cycle or even for CW operation is crucially important for the ADS application. Therefore, thermal analysis with water-cooling for a high duty accelerator in our ADS research is performed to control the frequency shift caused by a temperature rise.

A permanent magnet electron beam spread system used for a low energy electron irradiation accelerator

“…Irradiation processing has been widely applied in industries of manufacture, agriculture, bio-medicine and environmental protection because of its energy saving and environmentally friendly advantages [1,2]. An electron irradiation accelerator, with its benefits of controllable energy, operational efficiency, no radioactive pollution source, and no energy consumption when the machine is cut off, etc, has been widely adapted in the irradiation processing industry [3,4].…”