The OPERA RPC HV system has been implemented using custom current measurement/distribution systems developed by the LNF Electronics Workshop. Each system features eight inputs and 24 outputs (1-3 modularity). The current on each channel is measured with 100 pA sensitivity and 3% accuracy in the 1 nA-25 mu A range. In the paper we describe the measurement circuit as well as the results of the tests we have carried out to qualify the system.
The I-meter, a distributor unit for the OPERA RPC HV system
GARFAGNINI, ALBERTO
2007
Abstract
The OPERA RPC HV system has been implemented using custom current measurement/distribution systems developed by the LNF Electronics Workshop. Each system features eight inputs and 24 outputs (1-3 modularity). The current on each channel is measured with 100 pA sensitivity and 3% accuracy in the 1 nA-25 mu A range. In the paper we describe the measurement circuit as well as the results of the tests we have carried out to qualify the system.
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