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BML-D 001 Monitoring

BML-D 001 Monitoring. Paolo Iengo Atlas RPC Group Napoli ( M. Alviggi, V. Canale, M. Caprio, G. Carlino, F. Conventi, R. de Asmundis, M.Della Pietra, D. della Volpe, P.I., S.Patricelli , L.Romano , G. Sekhniaidze ). Overview. Plot & Fit V-I Historical Trends of Fit Parameter

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BML-D 001 Monitoring

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  1. BML-D 001 Monitoring Paolo Iengo Atlas RPC Group Napoli (M. Alviggi, V. Canale, M. Caprio, G. Carlino, F. Conventi, R. de Asmundis, M.Della Pietra, D. della Volpe, P.I., S.Patricelli, L.Romano, G. Sekhniaidze)

  2. Overview • Plot & Fit V-I • Historical Trends of Fit Parameter • Monitoring of Current, HV, Temp. etc • Conclusions

  3. Plot V-I FIT: I(V) = a+bV V<4000 Volt I(V) = a+bV +k (exp(V/c) –1) V>5000 Volt

  4. Plot V-I < 1 July > 1 July

  5. Historical Trend of Linear Slope T = 20 exp(-(T-20))  = 1/12

  6. Historical Trend of Exp. Slope

  7. 5 – 15 June 60 µA Currents 11 kV CAEN H.V.

  8. 24 June – 8 July Currents CAEN H.V.

  9. Currents 134 A Gas Flow Temperatures Isob. SF6

  10. Currents Isob. Flow

  11. Currents CAEN H.V. 9 – 16 July

  12. Currents CAEN H.V. Temperatures

  13. Conclusions • Behavior of BML-D 001 quite “stable” • Increasing current on one layer due to the problem on isobutane • Delay between HV and “regime” current needs more investigation • Continuous Monitoring of HV, Current, Gas Flow & Env. Parameters is Essential

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