  High-resolution beam telescopes for charged particle tracking are one of the
most important and equally demanding infrastructure items at test beam
facilities. The main purpose of beam telescopes is to provide precise reference
track information of beam particles to measure the performance of a device
under test (DUT). In this report the development of the ADENIUM beam telescope
(ALPIDE sensor based DESY Next test beam Instrument) as a demonstrator and
prototype for a next-generation beam telescope is presented. The ADENIUM beam
telescope features up to six pixelated reference planes framed by plastic
scintillators for triggering. ADENIUM is capable of replacing the currently
used EUDET-type beam telescopes without impacting existing DUT implementations
due to the integration of the telescope DAQ into EUDAQ2.
  In this report the concept and design of the ADENIUM telescope as well as its
performance are discussed. The telescope's pointing resolution is determined in
different configurations. For an optimal setup at an momentum of 5.6 GeV with
an ALPIDE as DUT, a resolution better than 3 um has been extracted. No rate
limitations have been observed at the DESY II test beam.
