Concept for the New Detector Chamber at the ESR Ion beam Internal Target Region  Lab *)  Flange axis Covered  range Flange size in mm A90° – 80°83°95° - 73°Ø250 B80° – 75°83°95° - 73°Ø250 C75° – 45°60°71° - 52°Ø 250 D45° – 10°0°28° - 18°200x250 E'120° –91°109°98° - 118°Ø250 L180°136,5° – 43,5° **) 200x250 Detector Chamber Part (DC) Interaction Chamber Part (IC) *) according to the angular regions A – E' defined in the Technical Proposal Region A Region D Region C Region B Region E' Flange D Flange E' Flange AB Flange C Flange L

Concept for the New Detector Chamber at the ESR Interaction Chamber Part View against beam directionSide view Flanges for observation, mounting detectors close to 0° and apertures upstream and downstream to the internal Target Active vacuum aperture devices for differential pumping UHV- Measurement Full Setup of the combined IC and DC Detector Chamber Part Side view UHV- Measurement PMTs for target monitoring

Concept for In-Ring Tagging Detectors at the ESR ESR Gas jet target with experimental setup