IBIC2025 - 14th International Beam Instrumentation Conference

Transverse emittance measurements of electron beams from the superconducting RF gun at Helmholtz-Zentrum Dresden-Rossendorf for high-current operation

TUPMO12

9 Sept 2025, 16:00

2h

Teaching Hub 502

Poster Presentation MC04: Transverse Profile and Emittance Monitors TUP

Speaker

Raffael Niemczyk (Helmholtz-Zentrum Dresden-Rossendorf)

Description

High-brightness, megahertz-rate electron sources are a curial component of future light sources, including the Linac Coherent Light Source II High Energy project, the continuous wave (cw) operation mode of the European X-ray Free-Electron Laser, or the superconducting rf (SRF) photoinjector at SEALAB at Helmholtz-Zentrum Berlin. The Helmholtz-Zentrum Dresden-Rossendorf has employed an SRF gun as one of its cw electron sources for user operation at ELBE since 2010. The SRF gun is used to drive the superradiant THz source TELBE, typically at repetition rates of 50 kHz and bunch charges of 200 pC. To determine the operating envelope of the SRF gun injector, a slit-scan setup was installed in the diagnostics beamline after the SRF gun, enabling characterization of the vertical phase space. In this proceeding, we describe the slit-scan setup at the diagnostics beamline of the SRF gun. Measurements of the vertical emittance at bunch charges between 50 pC and 250 pC at beam energies of 3.5 MeV will be presented.