Accelerator Science and Technology Seminar

Title:

"First Beam Commissioning of the SEALAB Superconducting Radio-Frequency (SRF) Photoelectron Gun"

Abstract:

After about a decade of research, development and construction work, the bERLinPro Energy Recovery Linac project at HZB changed over into the commissioning phase under the new framework SEALAB and started the operation of the SRF photo-injector with the injection line of the accelerator. This system had already produced beam from a metal photo-cathode in 2018 [1] in a dedicated test environment called Gunlab and was assembled in the accelerator hall after a required refurbishment and repair program [2]. The 1.3 GHz SRF gun successfully generated first photoemission beam from a high quantum efficiency (QE) Na-based multi-alkali photocathode. In this talk, the results of the first two measurement campaigns will be shown, including a review of the SRF design, the RF commissioning, the cavity performance, especially with respect to dark current, the cathode quantum efficiency and lifetime, as well as the measured beam parameters. Short- to midterm measurement plans will be discussed in the outlook.

[1] A. Neumann et al., “The BERLinPro SRF Photoinjector System - From First RF Commissioning to First Beam”, in Proc. 9th Int. Particle Accelerator Conf. (IPAC'18), Vancouver, BC, Canada, Apr. 4,, pp. 1660-1663, doi:10.18429/JACoW-IPAC2018-TUPML053

[2] Yegor Tamashevich et al 2024 Eng. Res. Express 6 025009

Title:

"Commissioning SLS2 - Lessons Learned"

Abstract:

N/A

Title:

"Project Management for Large Scale Research Projects - From SwissFEL to SLS2"

Abstract:

N/A

Title:

 "Overview of a 6-Year Operation of the ESRF-EBS and the Long-Term Strategy Plan" 

Abstract: 

N/A