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Results Overview

This report presents the results of gas leak tests conducted in the Department of Physics and Astronomy using a PicoLog ADC. The testing involved two different overpressures: +20mbar and +5mbar. Measurements were taken over 1000 seconds and 1800 seconds, respectively. The slope calculation yielded -0.0001 mbar/s, with a dispersion of points around the fit line at an RMS of approximately 0.01mbar. Our findings indicate that 17 out of 21 gaps studied exhibited a leak rate lower than 0.2 ± 0.01 mbar/10min, demonstrating effective gas seal integrity in the test samples.

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Results Overview

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  1. ResultsOverview RPC Gaps 18th of December 2012 Department of Physics and Astronomy

  2. DifferentGasleakcutsapplied

  3. Leak tests using a PicoLog ADC Slopecalculation over 200sec after1000sec for +20mbar tests Sameprocedureafter 1800sec for +5mbar tests

  4. Measurement of the dispersion on the B017 gap Slope = -0.0001 mbar/s Dispersion of the points around the fit line Sigma = 0.005mbar

  5. Repeatability of the measurements 10 measurements on gaps B017 & TW0082 differentoverpressures : +20mbar and +5mbarConclusion : dispersion is~0.01mbar RMS = 0.004 mbar RMS = 0.008 mbar RMS = 0.004 mbar RMS = 0.010 mbar

  6. Dispersion as a function of Patm Dispersion has no linkwith the Atmospherical Pressure

  7. Values in the DB for the TW008 : KODEL 0.12mbar/10min GENT 0.07mbar/10min Values in the DB for the B017 : KODEL 0.10mbar/10min GENT 0.06mbar/10min Pressure Drop values Negativeleak value = No Pressure Drop

  8. Comparison of the Results GENT KODEL

  9. Comparison of the Results GENT KODEL

  10. Comparison of the Results GENT KODEL

  11. Conclusion 17 over 21 gaps have a leak rate lowerthan 0.2 ± 0.01 mbar/10min

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