Abstract
The CEA MONACO v2 a multichannel acquisition system dedicated to neutron and gamma measurements. It is unique as it integrates all the following features in one module: automatic generation of saturation curves, automatic generation of pulse discrimination curves, detector pulse characterization using the embedded oscilloscope module, pulse mode acquisitions in count rate or pulse height analysis, fluctuation mode and current mode acquisitions. Sensors are plugged to a single connector and the implemented operating modes run constantly in parallel. Firsly designed for on line local neutron and gamma measurements with gaseous detectors in reactor experiments, the MONACO v2 system will also be available for self-powered detectors thanks to its wide current mode working range. After two years of development, CEA teams tested two MONACO v2 prototypes in the Slovenian TRIGA Mark II research reactor in 2018, using CEA miniature ion chambers and SPNDs. The system is now ready for industrialization to be available on the nuclear instrumentation market.
Highlights
CONSIDERING local neutron flux measurement techniques in nuclear research reactors environments in addition with reactor command control, online gaseous detectors are suffering from the lack of up-to-date and integrated signal acquisition system on the nuclear instrumentation market
CEA needs for research reactor neutron field characterization led to the development of a multipurpose and integrated data acquisition system for online neutron and gamma measurements called MONACO, standing for ‘Multichannel Online Neutron Acquisition in Campbell mOde’
After two years of development, this paper presents the recent second version [1][2] features and the validation of two MONACO v2 prototypes in the Slovenian TRIGA Mark II reactor
Summary
CONSIDERING local neutron flux measurement techniques in nuclear research reactors environments in addition with reactor command control, online gaseous detectors are suffering from the lack of up-to-date and integrated signal acquisition system on the nuclear instrumentation market. CEA needs for research reactor neutron field characterization led to the development of a multipurpose and integrated data acquisition system for online neutron and gamma measurements called MONACO, standing for ‘Multichannel Online Neutron Acquisition in Campbell mOde’. After two years of development, this paper presents the recent second version [1][2] features and the validation of two MONACO v2 prototypes in the Slovenian TRIGA Mark II reactor.
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