Disk chopper time-of-flight spectrometer

Instrument 3D layout

A cut of IN5B in a vertical plane along the beam axis

(1) Main access gate
(2) Choppers radiological protection
(3) Monochromator choppers
(4) Frame overlap and contaminant order choppers 
(5) Focusing guide
(6) Sample environment lift
(7) Sample chamber
(8) Position sensitive detectors
(9) Background shielding
(10) Background shielding frame
(11) Time-of-flight chamber
(12) Instrument recess

Note that the instrument is non-magnetic and has large sample chamber.