IB2  Endcap Muon Chamber Meeting
Below are the minutes for the Endcap Muon Chamber Meeting. If you find errors or wish to correct them, please contact me at apollina@fnal.gov. 
NOTICE
 The meeting and location time has been changed from Tuesday at 1:30 PM to Wednesday at 1:30 PM, from the IB2 Conference room to the  ICB video conference room, to allow better partecipation from University people (UF and Purdue).

Schedule for P3
P3 is the pre-production prototype ME2/1 chamber. Parts for 2 chambers will be built at FNAL, then one chamber will be built on site and the second will be shipped as a kit to PNPI. Visitors from PNPI will be on site to get the first look at a chamber assembly operation at FNAL. The schedule call for P3 to be ready by the end of the year. Giorgio presented a schedule which calls for the P3 panels to be machined in October, all the tooling and gluing of components done from October 15 to November 15, and the chamber being assembled before Christmas. No major objection was given, and therefore we will follow the schedule.

Aging Test Chamber
Andrey discussed the idea of producing 2 small chambers, approximately 50X50 cm, built with a technology as close as possible to the final chamber technology, to be tested form radiation damage at CERN. The idea was to have two 2-gap chambers (one for radiation studies, the other for monitoring purposes) with the possibility of reading the anode wires dark current, the possibility to measure gas gain by insertion of Fe55 sources in the body of the chamber and the possibility of  reading out pulse-height both from the wires and the strips. The chambers have to be ready by the end of January. It was agreed that the chambers would be produced after P3, so the timing looks tight but possible.

Outgassing Measurements
Laura is completing her measurement on outgassing from chamber components. In particular she tested outgassing from the Plascore panels, the FR4 sheets and the glue used to seal the chambers. Her requirements on the CSC system purity are extracted from the TDR, where the limits on oxigen, nitrogen and water contamination are:
O2<1000 ppm
N2<3000 ppm
H2O<1000 ppm
Using these values, assuming that a chamber gas valume (180 liters) is changed every day, assuming that we do not introduce impurities with the new gas, and using the total exposed surfaces for the various components, she determined the following limits for outgassing:
Ougassing from Polycarbonate < 5.5 x 10-4 torr l /cm2 sec
Ougassing from FR4 sking       < 4.2 x 10-8 torr l /cm2 sec
Ougassing from Epoxy             < 5.7 x 10-7 torr l /cm2 sec
To summarize her results, she finds that when the sample pieces she is using are pre-baked (i.e. when all the water vapor coming from the ambient and sticking to the pieces is removed)  all components satisfy the requirements mentioned above. With a RGA (Residual Gas Anlysis) she is finding that the outgassing is mostly composed by water (78-90%), with carbon dioxide (11-28%), carbon monoxide (5-14%) and oxygen (~2%). No other major measurable component is present. 
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