IPAC'26 - the 17th International Particle Accelerator Conference

First Beam Test of an Additively Manufactured H-Mode Linac Structure made from Pure Copper

THP4023

21 May 2026, 16:00

2h

C.I.D

Poster Presentation MC4.A08: Hadron accelerators: Linear Accelerators Poster session

Speakers

Dr Hendrik Hähnel (Goethe University Frankfurt) Philipp Müller (Goethe University Frankfurt)

Description

We present results from a 1.4 MeV proton beam test of the first IH-Type linac structure additively manufactured (AM) from copper. The cavity has been tested up to 25 kW at a duty cycle of 2 %, which corresponds to a cavity voltage of 1 MV with peak fields at the drift tubes reaching 40-70 without rf breakdown at full power. A 1.4 MeV proton beam from a Van de Graaff accelerator has been accelerated up to 2.2 MeV, demonstrating the effective acceleration voltage of 0.83 MV at full power. These high power beam tests show performance en par with conventionally manufactured H-mode structures, paving the way for future linac structures benefiting from the advantages of additive manufacturing.