GEM Detectors Azimuthal Angle Definition

The convention that has been used to specify the azimuthal angles of the GEM detectors is described here. The picture shows the view of some Bank5 modules, looking from the moderator towards the beamstop. The blue text indicates the two sides of the instrument. The red text gives the module identifiers and their associated azimuthal angle according to the definition which has been used on GEM.

Last updated on 16 Jan 2003 by Alex Hannon (a.c.hannon@rl.ac.uk)