X17 detector

Geometry, from the outside in.

Green cylindrical PVC enclosure surrounding the detector.

Detector

The full assembly inside its PVC enclosure.

Sixteen cyan trapezoidal scintillator bars arranged around the beam axis.

Scintillator bars

Sixteen long scintillators, with the enclosure hidden.

The scintillator barrel viewed nearly along the beam axis.

Along the beam

A view into the scintillator barrel.

Black PLA housings surrounding the cylindrical chamber and beam assembly.

Inner assembly

ΔE housings around the chamber and beam pipe.

Sixteen cyan thin scintillators surrounding the chamber.

ΔE detectors

Sixteen thin scintillators, with their housings hidden.

A single housing and its air cavity shown as wireframes around a cyan scintillator.

Inside a housing

Black PLA, white air cavity, cyan scintillator.

Small LiF target beside its long copper cooling tube and brass nut.

Target & supports

LiF target, hollow copper cooling tube and brass nut.