Minutes of the Geneva AMS group meeting on Apr. 11, 2000
Scheduled a Geneva electronic meeting for Wendsday 12th at 10.30. There it will be discussed a detailed schedule for the electronic group up to July. Also some decission should be taken regarding the component choice. Everybody is welcome. It will be discussed also the actions to be taken for radiation test. It is clear that total dose test can be done at Perugio for the operational amplifiers. For the ADC there is also the possibility CIEMAT.
3 Guido's board will be commanded to CAEN at the end of this week. All three will have a gate array of 200K gates. Two of them will have an AD2185 DSP and the other a AD2187. Guido will have six prototypes at the end of the month, so Geneva is going to ask for one.
As connectors were designed with 26 pins there is no need to resize them. Three companies can provide almost identical connectors, AIRBORNE, OMNETICS and MOLLEX. The final choice will be made on the basis of samples demanded. It has also been decided that the conector fixation on the hybrid will be adopted also on the TDR. Although this fixation solves the problem of the limited number of conections the cable saver will be still present on the transportation box.
News form ladder L12GT031. Philipp showed us some slides were it was clearly visible the effect of the bonding on the strip quality (See this). Also it was showed the correlation between bad strips (high leakage current) and the noise induced by them (See this)
Eric found some differences between his ladder table and the Pauluzzi one.
Meeting this morning about assembly. One of the hot points is still the glue dispenser. Three possible solution:
Proposal for the replacement of a heat pipe at the end of the thermal bars by a conduction layer done with TPG after brainstorming last week. Some drawings are available.
E. Cortina, Apr, 11, 2000