The scintillating screen is inserted into the beam under an angle of 45°. Through a viewport, located at 90° with respect to the beam, a camera observes the screen.

The drawing of the scintillating screen setup on a flange with a target under 45° in respect to the beam.

The mechanical constituents of one Scintillating Screen Setup are the following parts:

• Detector consisting of scintillating screen and target holder.
• Pneumatic driven linear actuator.
• Diagnostic chamber for installation of linear actuators.
• Additional parts for detector installation on linear actuator.

The linear actuator moves the detector (scintillating screen and holder) into the beam center and out of the beam. The four different detectors are foreseen correspond to four different linear actuators.

Technical drawing of linear actuator with camera setup.

The optical constituents of one Scintillating Screen are the following parts:

The detector consists of the scintillating screen (target) and the target holder. The scintillating screen is a round disk of scintillating material (solid or coated material), fixed in a holder with permanent alignment marks outside the active area.

The technical drawing (left) and photo (right) of the scintillating screen on target holder.

In the HEBT lines, two different detector sizes are used with an active area of Ø 100 mm and Ø 120 mm, mainly Chromox.