FEE Electronics progress Mezzanine manufacture progress FEE 64

FEE Electronics progress • Mezzanine manufacture progress • FEE 64 testing and VHDL progress 4 th December 2009

Mezzanine manufacture Progress • • • PCB manufacturer delayed through the processing due to technically challenging design. Shipped 20 to assembler ( Patronics Ltd ). 15 assembled boards delivered to DL 2/12/09. 5 assembled boards failed final quality control at Patronics. Pads had lifted after re-work. After visual inspection at DL. – – • • 4 th December 2009 10 OK for use. 1 broken track and lifted resistor 1 solder whisker between resistors ( can repair ) 3 solder on ASIC pads Assembled to copper block and found a component fouled. Mechanical workshops removing 0. 2 mm copper to solve the problem. Creating 5 kits with mezzanine card, mounting pins and copper block with heat conducting foam pad in place for despatch to RAL.

FEE 64 testing and VHDL progress • • MIDAS control and acquisition system is under development as the VHDL evolves. Spectra taken from all four Mux readout ADCs with reference and input ground. FWHM of 3 channels. 4 th December 2009

Clock distribution • No further work has taken place. • Pcb layout to proceed after VHDL for acquisition complete. • Designed for manufacture locally. Master SYNC to clock box FEE 64 (sync master) FEE 64 Clock box FEE 64 200 Mhz clock and SYNC distribution 4 th December 2009