Large-volume and room-temperature gamma spectrometer for environmental radiation monitoring

Large-volume and room-temperature gamma spectrometer for environmental radiation monitoring

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The use of Yoto Card - Educational a room-temperature gamma spectrometer is an issue in environmental radiation monitoring.To monitor radionuclides released around a nuclear power plant, suitable instruments giving fast and reliable information are required.High-pressure xenon (HPXe) chambers have range of resolution and efficiency equivalent to those of other medium resolution detectors such as those using NaI(Tl), CdZnTe, and LaBr3:Ce.An HPXe chamber could be a cost-effective alternative, assuming temperature stability and reliability.

The CEA LIST actively studied and Goalie - Equipment Bags developed HPXe-based technology applied for environmental monitoring.Xenon purification and conditioning was performed.The design of a 4-L HPXe detector was performed to minimize the detector capacitance and the required power supply.Simulations were done with the MCNPX2.

7 particle transport code to estimate the intrinsic efficiency of the HPXe detector.A behavioral study dealing with ballistic deficits and electronic noise will be utilized to provide perspective for further analysis.