E907 TPC Front End Electronics "Stick"

Whole Stick

Each "stick" consists of two long circuit boards, mounted back to back on an aluminum wedge. The two boards share clock, slow control, power, and optical fiber connectors, at the right, but serve separate TPC pad rows. Each stick extends halfway across the chamber, serving 60 of the 120 pads across the full width.

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Front End Blocks

The front end blocks connect to the chamber via the card-edge pads along the top of the stick. There are 15 blocks, each serving four chamber pads.

Inboard Section

Middle Section

Outboard Section

Back End

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Back End Multiplexing

Back End Interface