The scintillating fibre hodoscope will be located between the inner and outer pixel layers, around the target, at a radius of 6 cm and with a total length of 36 cm.

Serci et al., "Performance of an economic time-of-flight scintillator hodoscope," Nuclear Instruments and Methods in Physics Research, vol.

This void, named Scan Pyramids Big Void, was first observed with nuclear emulsion films installed in the Queen's chamber, then confirmed with scintillator hodoscopes set up in the same chamber (KEK) and re-confirmed with gas detectors outside of the pyramid (CEA), according to the study.

Upstream and downstream of the transition radiation detector, two large hodoscopes of scintillators provided a fast trigger.

Three 2 cm x 2 cm and 5 mm thick plastic scintillator hodoscopes were used (H1 to H3) with the beam trigger being formed by the coincidence of the H1 and H2 only.