LINAC2026 - 33rd Linear Accelerator Conference

Study of Two Dimensional Beam Splitting by Transverse Field RF Cavities for Multi-Beam ADS

Not scheduled

2h

Daejeon Convention Center

Poster Presentation MC1.A01: Beam Dynamics, beam simulations, beam transport Poster Session

Speaker

Yuanshuai Qin (Institute of Modern Physics, Chinese Academy of Sciences)

Description

ADS is considered as an effective way for the transmutation of nuclear waste. With multi-beam injecting into multi-target in the reactor, neutron distribution will become uniform, which is beneficial to the the safety and economy of the reactor. With transverse field RF cavities, the adjacent micro bunches in CW beam could be deflectied to different directions and 2D beam splitting could be relized, resulting in multi-beam injection. The frequency of the RF Cavities should be different from the beam frequency, forming fixed phase shift. 5/12*f0 is chosen as the frequency of RF cavities and 12 symmetrically distributed beam is formed. High order magnets are adopted for cavity deflection compensation for high energy proton beam. Furthermore, circular scan for each beam line is conducted for PCD (Peak Current Density) reduction. Comparing with 35 μA/cm^2 for 5 mA beam in Φ250 single target, PCD is limited within 20 μA/cm^2 for 18 mA beam in Φ250 multi-target.