17–22 May 2026
C.I.D
Europe/Zurich timezone

Preliminary Design of an RF-focused Interdigital Drift Tube Linac

THP3613
21 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC3.T01: Advanced techniques/Novel sources: Proton and Ion Sources Poster session

Speaker

Shengjin LIU (China Spallation Neutron Source)

Description

A standard Interdigital Drift Tube Linac accelerates particles in a pi-mode cavity using drift tubes suspended alternately from opposite walls. It typically requires external magnetic quadrupoles in a Focusing-Drift-Defocusing-Drift lattice for transverse focusing.

The RF-focused DTL innovates by shaping the drift tubes themselves as RF quadrupoles (like a short section of an RFQ). This integrates transverse focusing directly into the accelerating structure, eliminating the need for separate magnetic quadrupoles. This leads to a more compact, mechanically simpler, and potentially cheaper system, ideal for applications like medical isotope accelerators, injectors, or compact neutron sources.

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Authors

Qi Yu Kong (Dongguan Neutron Science Center) Huachang Liu (Institute of High Energy Physics) Ahong Li (Institute of High Energy Physics) Shengjin LIU (China Spallation Neutron Source) 雨瑄 杨 (China Spallation Neutron Source)

Presentation materials

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