Abstract
In order to absolutely measure the radioactivity of $\beta $ – $\gamma $ decay radionuclides, we have developed a calculation software for $4\pi \beta $ – $\gamma $ coincidence counting. The combination of software and hardware systems constitutes an absolute radioactivity measurement system. The hardware uses a NaI (Tl) $\gamma $ -ray detector and $4\pi \beta $ proportional counter as front detectors. The software uses a $4\pi \beta $ – $\gamma $ coincidence efficiency extrapolation method to obtain source radioactivity by processing $\beta $ and $\gamma $ pulses digitalized by a data acquisition device. Processing modules in the software include a peak-finding module, data conversion module, dead-time processing module, multichannel coincidence module, and efficiency extrapolation module. To evaluate the measurement system, the software is used to measure the known radioactivity of 60Co sample and then the results were compared. Test results indicated that coupled with the above hardware system, the software accurately measured the absolute radioactivity of 60Co, proving that this software can successfully absolutely measure the radioactivity of $\beta $ – $\gamma $ decay radionuclides.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
