gas exhaust from back	TGC support	gamma-source box	trigger and CMS...	trigger system and DWC
trigger and DWC	trigger and DWC	trigger and DWC	beam direction up stream	working	working
cabling	TGC from back	gas exhaust	tgc and gas exhaust	source and its around	CMS's ECAL
fighting with noise	mounting	gas outlet	TGC 20deg normal to the beam	CMS's CSC	GIF area