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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 1: Beam Dynamics

AKBP 1.3: Talk

Monday, March 15, 2021, 16:30–16:45, AKBPa

The Metrology Light Source 2 — •Michael Arlandoo^1,2 and Paul Goslawski¹ — ¹Helmholtz-Zentrum Berlin für Materialien und Energie — ²Humboldt-Universität zu Berlin

The Physikalisch-Technische Bundesanstalt (PTB), in cooperation with the Helmholtz-Zentrum Berlin (HZB), operates the Metrology Light Source (MLS), which is a low-energy electron storage ring. The MLS can be operated in a low-alpha mode to produce coherent synchrotron ration in the far-IR and THz spectral range. In the scope of the Conceptual Design process for a BESSY II successor, the PTB asked also for a MLS successor to cover their increasing demands on synchrotron radiation. A combination of two different machines, one optimized for low emittance (BESSY 3) and the other for flexible timing capabilities (MLS 2), will provide best radiation capabilities for our user community. In this paper, we discuss the demands on the MLS 2 and propose first lattice candidates which satisfy the needs of the PTB and HZB. Currently, we focus on linear lattices with first steps towards non-linear optimization. The lattice design has to include the option for a robust low-alpha operation mode and should be checked for the possibility of TRIBs (Transverse Resonance Island Buckets).