Research Profile

Research Profile

The proposed Research Training Group (RTG) addresses the training of junior scientists in the interdisciplinary field of accelerator science with particular emphasis on the technology of ERLs. It exploits unique opportunities for accelerator science at the S-DALINAC at Darmstadt and along the construction of MESA at Mainz.

The initiative builds on three pillars: scientific programme, qualification concept and supervising concept. Each of these pillars will be of equal importance for the success of the RTG. The scientific programme defines the lines of research of doctoral projects for the junior scientists while the qualification concept facilitates the professional development of the scientists within the RTG. The principal investigators and their supervising concept will ensure an efficient and transparent academic training of the junior scientists.

High beam power achievable in ERLs and the requests for excellent beam quality needed for precision experiments in nuclear and radiation physics lead to the formulation of interrelated projects addressed within this RTG.

The scientific programme is divided into five interconnected project areas covering most technological aspects along electron accelerators beginning with the generation of electrons and ending at the beam target interactions at the experimental sites.

Research Areas

A Electron Sources and Photocathodes
B Injector Linacs
C Low-Level RF-Control Systems and Beam Diagnostics
D Beam Dynamics
E Beam Target Interaction

Research Projects

A-1 Time-resolved investigations on the emission of polarized electrons from
GaAs photocathodes
A-2 Modeling and simulation of photoemission based electron sources
B-1 Development of b-graded SRF cavities for the S-DALINAC injector
B-2 Design of the beam line and a new cryomodule for the b-graded S-DALINAC injector
C-1 Diamond detectors for beam diagnostics, as fast triggers and as luminosity
monitors
C-2 Beam diagnostics, halo scraping and feedback systems for machine
protection and energy stabilization in ERLs
C-3 Digital open-loop and closed-loop rf control for superconducting cavities in
energy-recovery linacs
C-4 Enhancing the S-DALINAC digital LLRF system for stable ERL operation
D-1 Commissioning and parameter studies at the recirculating S-DALINAC ERL
D-2 Beam dynamical behaviour of MESA SRF-structures under recirculating
operation
D-3 Effect of space charge and wake fields in energy-recovery linacs
D-4 Beam dynamics and beam collimation following the internal target at MESA
E-1 Internal targets for the energy-recovery mode of MESA
E-2 Beam stability and stabilization aspects of MESA
E-3 Improving the energy resolution of the QCLAM spectrometer at S-DALINAC

Funding Period

April 1st, 2016, – September 30th, 2020 (54 months)

Start: April 1st, 2016