ATLAS HEC PHOTOS TRIUMF

Photo 1 - Removal of a glued foil from the glue press. The foils still need to be cut with a steel rule die and the HV pins soldered on. Photo 2 - Inspection of EST foil. Photo 3 - Placing the first plate of the front Module 0 on the stacking table with the tie-rods in place. Photo 4 - As each gap is stacked, it is tested by applying 3kV across each honeycomb sheet and ensuring that the current draw is low (a few tens of nA). Photo 5 - HV testing on a stacked front module. Photo 6 - Detail of a gap in a module. Four sheets of honeycomb spacing mats separate the centre PAD foil from the two EST foils on either side, and hold the EST foils away from the copper absorber structure. Photo 7 - Last plate of rear module being stacked. Photo 8 - Stacked rear module 0. Photo 9 - Four Module 0's, one front and one rear from TRIUMF, one from Germany, and one from and one from Russia, are "married" into one structure. In this picture, two front modules are married together. Photo 10 - After two modules are married, they are rotated inot the orientation required for beam testing (beam horizontal). Photo 11 - Four modules 0's are ready to go into the test beam cryostat. Photo 12 - Four HEC Module O's are in the test beam cryostat ready for testing. (Russian colleagues in background).