T9 Setup
Below is a sketch of the setup in T9 for the photon, electrons and positron acquisition.
Please NOTE that S3 was generally out of the beam line when taking data, and was moved on the beam line during the initial setup and tuning of the beam and the trigger. S3 was eventually moved back in front of the Sh light guide and out of the direct beam line to provide anticoincidence with the Sh lightguide.
A picture documentation of the various components is available here. Pictures of the dump and the tagger chambers are available here
A geometrical survey was performed with the following results:
