An ultra-high-stability four-axis ultra-high-vacuum sample manipulator

Marcus Agåker, Carl Johan Englund, Peter Sjöblom, Nial Wassdahl, Pierre Fredriksson, Conny Såthe

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review


A report on a four-axis ultra-high-stability manipulator developed for use at the Veritas and Species RIXS beamlines at MAX IV Laboratory, Lund, Sweden, is presented. The manipulator consists of a compact, light-weight X-Y table with a stiffened Z tower carrying a platform with a rotary seal to which a manipulator rod holding the sample can be attached. Its design parameters have been optimized to achieve high eigen-frequencies via a light-weight yet stiff construction, to absorb forces without deformations, provide a low center of gravity, and have a compact footprint without compromising access to the manipulator rod. The manipulator system can house a multitude of different, easily exchangeable, manipulator rods that can be tailor-made for specific experimental requirements without having to rebuild the entire sample positioning system. It is shown that the manipulator has its lowest eigen-frequency at 48.5 Hz and that long-term stability is in the few tens of nanometres. Position accuracy is shown to be better than 100 nm. Angular accuracy is in the 500 nrad range with a long-term stability of a few hundred nanoradians.

Sidor (från-till)1059-1068
Antal sidor10
TidskriftJournal of Synchrotron Radiation
NummerPt 4
StatusPublished - 2021 juli 1

Ämnesklassifikation (UKÄ)

  • Acceleratorfysik och instrumentering


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