Difference between revisions of "Minutes-7-8-2010"
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== Full-scale prototype test results == | == Full-scale prototype test results == | ||
| − | - Lubomir showed several Beni's plot, linked above. | + | - Lubomir showed several Beni's plot, linked above. Based on high statistics cosmic data, the mean ADC, measuring the total charge from the wires, goes down with the drift time. Same was abserved before for the maximum amplitude, using the fADC data. This can be explained by ~0.1% oxygen contamination. Beni also did measurements at different, by 20%, bas flow rates, but there's no visible change in the results. |
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| + | - To measure the oxygen contamination we need a pump at the end of the oxygen sensor, as discussed last time. The problem is that the presure there should not be less than 0.5 atm, according to the documentation of the sensor. Beni also confirmed this talking to the company. We will look what are the parameters of the pump that we have. We may need a releive valve to keep the prasure there above half atm. | ||
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Revision as of 18:26, 8 July 2010
July 8, 2010 FDC meeting
Tentative Agenda
- Production
- 727 B.C. status
- wire frame production planning
- wire stringing design
- rohacell ring production
- Electronics: update (Fernando)
- Cathode redesign: finalizing (Roger)
- Full-scale prototype tests
- cosmic test results (Beni) FDC Log Book, pages 504
- oxygen contamination measurements Beni's scheme
- Other
