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BML-D 001 Monitoring Paolo Iengo Atlas RPC Group Napoli ( M. Alviggi, V. Canale, M. Caprio, G....

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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)
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Page 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.

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)

Page 2: 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.

Overview

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

Page 3: 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.

Plot V-I

FIT: I(V) = a+bV V<4000 Volt

I(V) = a+bV +k (exp(V/c) –1) V>5000 Volt

Page 4: 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.

Plot V-I

< 1 July > 1 July

Page 5: 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.

Historical Trend of Linear Slope

T = 20 exp(-(T-20)) = 1/12

Page 6: 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.

Historical Trend of Exp. Slope

Page 7: 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.

5 – 15 June Currents

CAEN H.V.

60 µA

11 kV

Page 8: 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.

24 June – 8 JulyCurrents

CAEN H.V.

Page 9: 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.

Currents

Temperatures Gas Flow

134 A

SF6Isob.

Page 10: 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.

Currents

Isob. Flow

Page 11: 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.

CAEN H.V.

Currents 9 – 16 July

Page 12: 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.

Currents

CAEN H.V.

Temperatures

Page 13: 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.

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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