assembly photos

Photos by Jacques Dubeau


Side views      
Side view of the TPC showing clearly the 30 x 33 MegOhm resistor divider chain. On the
L.H.S. we see the HV input and cable for the TPC. On the R.H.S. the GEM voltage protection resistors are on the motherboard and they are covered with silicone.
Side view of the TPC showing a clear view of the TPC HV input. Side view of the TPC on the side of the GEM HV inputs. The resistors are for breakdown protection. The GEM HV divider chain is external and it is not shown. Side view of TPC next to an aerosol can (for scaling).
TPC in open vessel      
TPC and GEM assembly is positioned inside the hermetic vessel. The detector is upright on 3 posts. An opened window port is shown. The TPC+vessel assembly seen from the top. The top TPC electrode is solid. The last component is an insulating ring for support of the TPC structure when it is positioned on its side. The TPC HV line is soldered at the centre of the last electrode.
 

 

View of the "business end" of the detector (HV and signal
input/outputs). The detector is mounted side ways on its support brackets. The TPC 10 keV HV connector is on the L.H.S. while the GEM mutipin HV input connector is on the R.H.S.
TPC in closed vessel      
Side view of the vessel. A mylar window is visible.
 
 

 

View of the top lid. NEVER stand the detector on that face. From the top, 2nd mylar window. The two remaining window ports are are sealed with solid flanges.