Real-Time Monitoring Method for Radioactive Substances Using Monolithic Active Pixel Sensors (MAPS)

Abstract

This study presents a real-time monitoring technique for radioactive substances that meets safety management needs. We studied the accumulation characteristics of radiation response signals of monolithic active pixel sensors (MAPSs) based on their response and discrimination ability to gamma (γ) photon or neutron radiation. The radiation status of the radioactive substances was determined by monitoring the accumulation data of radiation responses. As per the results, Am-Be and 252Cf radiation response signals are primarily concentrated in the range of 0–70 pixels. Response signals of 60Co and 137Cs γ-ray were concentrated in two regions; there was a peak in the region with a pixel value of less than 50, and a plateau in the region with a pixel value of more than 75. Therefore, the results are able to discriminate between spectra. Furthermore, we designed a radioactivity monitoring system that is able to examine multiple radioactive materials. Its working principle is that a change in the accumulation of radioactivity monitoring data indicates a radiation change during the last accumulation cycle. This study provides vital technical support for the long-term supervision of radioactive substances.

Cloud-Enabled Real-Time Monitoring and Alert System for Primary Network Resource Scheduling and Large-Scale Users

“…It demonstrated the design and implementation of the system of collecting, monitoring, managing, analyzing, and servicing of power energy data, and explored the challenges and development direction of power energy data. Han et al presents the design and implementation of a cloud computingbased electricity demand response system for large users, which takes advantage of the elasticity, scalability, and low cost of www.ijacsa.thesai.org cloud computing to build a distributed electricity demand response platform, realizing real-time monitoring, analysis, and response to the electricity demand of large users, and providing data support and intelligent services for the scheduling and optimization of the power system [19]. A method for analyzing and identifying the electricity consumption behavior of large users based on the fusion of multi-source data is proposed, which utilizes multi-source data such as the electricity consumption data, electricity consumption contract, and electricity consumption equipment of large users, and provides an effective means for the supervision and service of the electricity consumption of large users [20].…”

A Wireless Gamma-Ray Monitoring System for Cemented Radwaste Drums

“…Neutron [6] and gamma [7] radiation sensors for radwaste drum monitoring have already been developed and have proven feasible within the EU MICADO project [8]. However, the use of a wired online monitoring configuration for a real radwaste storage site would be a limitation, and this is why a wireless solution should be aimed at addressing the issue in [9]. In this paper, we describe the development of a wireless sensor, featuring a gamma-ray counter and a compact front-end and data acquisition electronics box, to be easily installed on a drum.…”