General overview, layout of the pbar separator Target handling concept FLUKA calculations - for the target station - for the shielding flask Status of the pbar separator at FAIR (M. Helmecke, K. Knie, V. Gostichev, R. Hettinger)

FAIR accelerators p-bar target p-linac Super- FRS SIS100 SIS300 HESR CR RESR Unilac SIS 100 NESR HESR Antiproton Production Target SIS18 Upgrade CR RESR p-linacSIS 300 PANDA FLAIR SuperFRS Target SuperFRS

Overview Anti-Proton-Separator pbar-building

Sections of the pbar separator PS01 (vac.) PS01 (air)

Target station with mounted target and magnetic horn BEAM Target: 5 Nickel rods (3mm diameter, 100 mm length) surrounded by graphite in aluminum block, titanium windows

Assemblies to be disposed m ≈ 70 kg m ≈ 120 kg I= 400 kA Activation of about Bq!

Residual dose rate around target station I air concrete air iron Handling Area Restricted area („Sperrbereich“) Controlled area („Kontrollbereich“) Monitored area („Überwachungsbereich“) max. 0.5 µSv/h BEAM Input parameters: 5e12p/s, irradiation time: 3.16E7 s Determination of residual dose rate important for operation permission!

Transport concept in the pbar building Transport container pulls out component (1) Moves to the shaft (2) Carrying frame lifts up the component (3) Shielding flask is closed (4)

Residual dose of open target station [Sv/h] Input parameters: 5e12p/s, irradiation time: 3.16E7 s, cooling time: 1 week Irradiation with closed door THEN door is opened: * ASSIGNMA IRON Door VACUUM THEN target and magnetic horn are set in the same way. (Not visible in geometry plot!) [Sv/h] Door Target and magnetic horn insideTarget and magnetic horn removed [cm]

Bring the target out of the target station Top view, beam from left to right. Inner part of target station is always shielded

Target station and transport container in tunnel Process sequence: Transport container is placed in front of target station. Door of target station and transport container are opened. Component is gripped by a quick coupling system. Trolley moves the component via rail system into the transport container. Doors are closed. Trolley Coupling system Rail system Front door (for intervention only) Inner door

Transport concept in the pbar building

Residual dose during handling I: Transport container in front of target station [Sv/h] Input parameters: 5e12p/s, irradiation time: 3.16E7 s, cooling time: 1 week Door Container (iron) * ASSIGNMA IRON Door VACUUM ASSIGNMA BLCKHOLE Cont VACUUM Irradiation: target station is closed, container not placed. THEN door of target station is opened with container in front (subsidiary region around container). [cm]

Residual dose during handling II: Activated target in transport container Input parameters: 5e12p/s, irradiation time: 3.16E7 s, cooling time: 1 week [Sv/h] Target activation by primary beam inside container with subsidiary region around target. Door of target station closed. * ASSIGNMA BLCKHOLE ContTar VACUUM ASSIGNMA IRON Door new target position [cm]

Transport concept in the pbar building

Dose rate calculations for the shielding flask Agreement: Design according to a dose rate at the surface of max.100 µSv/h. Cross-check with Microshield *) [Sv/h] mmmax. 98 µSv/h mmmax. 95 µSv/h mmmax. 72 µSv/h Nickel target Iridium target *) Kraftanlagen Heidelberg Primary beam activates target directly inside of shielding, but does not hit the flask [cm]

Recent status....

APPENDIX

Overview of transport in building 6c II 1 2 3

FLUKA calculations of the collimators: Beamline layout

Energy deposition in iron and aluminum collimators Iron collimators Aluminum collimators

Residual dose for different material combinations Cooling time: 1 week, irradiation time: 3.16E7 s with 5E12 p/s [Sv/h] Al Fe