LINAC2026 - 33rd Linear Accelerator Conference

Progress of the intense uranium DTL beam project Alvarez 2.0 at GSI

Not scheduled

2h

Daejeon Convention Center

Poster Presentation MC3.A02: Ion linac projects Poster Session

Speaker

Lars Groening (GSI Helmholtz Centre for Heavy Ion Research)

Description

The Alvarez-type post-stripper DTL at GSI accelerates intense ion beams with A/q≤8.5 from 1.4 to 11.4 MeV/u. After more than 45 years of operation, it suffers from aging and its design does not meet the requirements of the upcoming FAIR project. Series production of the new DTL Alvarez 2.0 is ongoing. In 2025, the last out of 25 cavity sections, forming five cavities, underwent the site acceptance test. Eight of them have been copper plated at GSI’s in house galvanic work shop with a rate of about 2.5 month per section. All 188 drift tubes have been ordered. Production of about 70 tubes is completed as well as copper plating of about 60 of them at CERN’s galvanic work shop. Forty drift tubes have been installed inside of the cavity sections. This year shall see the assembly of at least one cavity from five single sections. Production of many small parts is completed to a large extend. This contribution summarizes the actual project status and its perspectives.