Accelerator
Drift Tube Linac
Installation of the Drift Tube Linac (DTL) section progresses in the Normal Conducting Linac. With DTL tanks 1 and 4 already in place, DTL 3 is set to be transported to the tunnel in the coming days. DTL 2 is subject to final tuning, with all copper parts in place. When DTLs 1 to 4 are all in place and fully installed, a period of RF conditioning will follow before beam commissioning from Ion Source to a Faraday cup after DTL 4 starts.
Cryogenic systems
Leak detection continues on the cryogenic distribution system. The vacuum envelope is scanned for leaks, and repairs are performed continuously. Cool down is planned for later this year.
At the same time, the sixth medium beta cryomodule is in the final stages of testing. Cryomodules ready for installation will be transported to the tunnel early next year.
Linac Warm Units
Installation of Linac Warm Units onto pedestals in the tunnel is ongoing. Particle-free installation will follow for each unit. Linac Warm Units sit between cryomodules, with the purpose to focus the proton beam both horizontally and vertically as it moves towards the Target.
Test stand for the second Ion Source at ESS
The test stand for the second Ion Source, delivered from Italian in-kind partner INFN, is under construction. Racks are installed and a shielding cage will be built around the ion source. This source can be used for future testing and as a spare.
Target
Inner shielding installations continue into the Monolith vessel. The north grid shielding block has been subject to adjustment, with installation following. The two large pancake shielding blocks will soon arrive on site, and be made ready for installation into the vessel.
Preparations to start tests in the Mock-Up and Test Stand continue.
Instruments
Optics Assembly
The five Neutron Beam Port Inserts which recently arrived for FREIA, DREAM, ESTIA, SKADI and VESPA have all been equipped with neutron optics and sealed.
Vacuum tests have been successfully completed for the FREIA insert and are ongoing for DREAM.
LOKI
Cable raceway installations continue for LOKI, mainly on the roof of the control cabin. Works will continue with the shielding walls, with the walls around the detector vessel nose and sample area planned to go up next.
BIFROST
Final alignment of the in-bunker neutron guide for BIFROST took place this week. Commissioning tests continue for the bandwidth chopper and cross-beams are installed along the beamline. Installation of out-of-bunker neutron guides is next for BIFROST.
