Purpose This study is part of the Balqarad system's commissioning project.Optimizing the radioactivity detection and measurement using the Balqarad setup is highly important to investigate and explain the self-ind...Purpose This study is part of the Balqarad system's commissioning project.Optimizing the radioactivity detection and measurement using the Balqarad setup is highly important to investigate and explain the self-induced and ambient backgrounds to determine the actual sample-related features in the spectra acquired.Methods Balqarad is a radiation detection system composed of a clover,a variety of scintillators,lead shielding,and the standard electronics needed for the construction of gamma spectra.Four distinct setup configurations were set up to measure background radiation using a tailored analysis code.Results Background radiation from Balqarad components was assessed using two-dimensional background spectra features(hotspots and lines).Background sources in the system’s proximity were studied using one-dimensional spectra in both direct(single)and addback modes.Furthermore,these spectra were crucial in detecting and investigating any potential ^(207)Bi contamination of the bismuth germanium oxide(BGO)material.The results show that the decay from ^(211+211m)Po to the energy levels of ^(207m)Pb was measured,and this could be incorrectly interpreted as the decay of ^(207)Bi.Another noteworthy finding is the presence of a 59.5 keV peak,which was a significant contribution from the shielding to the detector’s background.This study also confirmed the detection of the cosmic peak of ^(74*)Ge generated by the(n,γ)reaction at 596.5 keV in the Ge-BGO system.Conclusion The technique was applied for Balqarad setup components in different configurations for background measurement.The study applied a coincidence/anticoincidence technique to the various configurations,resulting in a reduced cosmic background and the Compton continuum by a factor of 53%.展开更多
文摘Purpose This study is part of the Balqarad system's commissioning project.Optimizing the radioactivity detection and measurement using the Balqarad setup is highly important to investigate and explain the self-induced and ambient backgrounds to determine the actual sample-related features in the spectra acquired.Methods Balqarad is a radiation detection system composed of a clover,a variety of scintillators,lead shielding,and the standard electronics needed for the construction of gamma spectra.Four distinct setup configurations were set up to measure background radiation using a tailored analysis code.Results Background radiation from Balqarad components was assessed using two-dimensional background spectra features(hotspots and lines).Background sources in the system’s proximity were studied using one-dimensional spectra in both direct(single)and addback modes.Furthermore,these spectra were crucial in detecting and investigating any potential ^(207)Bi contamination of the bismuth germanium oxide(BGO)material.The results show that the decay from ^(211+211m)Po to the energy levels of ^(207m)Pb was measured,and this could be incorrectly interpreted as the decay of ^(207)Bi.Another noteworthy finding is the presence of a 59.5 keV peak,which was a significant contribution from the shielding to the detector’s background.This study also confirmed the detection of the cosmic peak of ^(74*)Ge generated by the(n,γ)reaction at 596.5 keV in the Ge-BGO system.Conclusion The technique was applied for Balqarad setup components in different configurations for background measurement.The study applied a coincidence/anticoincidence technique to the various configurations,resulting in a reduced cosmic background and the Compton continuum by a factor of 53%.
