Attached is the drawing of the flange extension for the 90 degree ports at the target (so-called "Detektorhut").

The depth of the currently installed extensions is 95 mm, which is option "Teil 3 L = 95 mm" in the drawing.

New detector pockets (top/bottom) and a channeltron have been installed in the ESR target chamber. 
Fotos of the interior are attached, viewpoint is from the outside flange (zero degree detector position).

A summary of installations in the target line done in october 2023 is given below and in the attachement.
The work was done mainly by Jan Glorius, Davide Racano and Nikita Kotovskiy.

mirror chamber:
- exchanged "south window" [now MgF2]
- exchanged "middle window" [now CaF2]
- installed two NEG pumps, one inside and one outside the ring [before: blind flanges]

interaction chamber:
- installed two detector pockets with stainless steel windows [25 micron], one on top and one on bottom of chamber [before: blind flanges]
- installed pneumatic drive in "zero degree position" [before: blind flange], mounted is a detector pocket with a stainless steel window [25 micron]
- installed channeltron in 60° outside flange CF40 [before: CaF2 window on CF63 adapter]
- opened & closed blind flange on bottom of chamber to check potential collisions of top pocket and moving side pocket

In the attached overview all flanges opened during installation work are labeled.