Improvements of low-level radioxenon detection sensitivity by a state-of-the art coincidence setup

An introduction to γ3 a new versatile ultralow background gamma spectrometer. Background description and analysis

“…It was named γ 3 and is used in various applications e.g. : measurements of fission product traces in environmental samples in the frame of the Comprehensive nuclear Test Ban Treaty Organization (see CTBTO, 1996;Le Petit et al, 2014;Cagniant et al, 2013); detection of naturally occurring radioactive materials in environmental sample; measurements of radionuclides at trace level for physics experiments. The γ 3 spectrometer can deal with several sample geometries: gas cells, atmospheric filters and small/large volume containers for solid or liquid matrices.…”

Characterization of a Commercial Silicon Beta Cell

“…The PIPSBox demonstrated an energy resolution of 14% (18 keV) FWHM for the 131m Xe 129-keV conversion electron, Figure 4. An energy resolution of 18 keV is approximately 30% worse than that which was presented by CEA 4 . While 14% energy resolution may be enough to separate the 131m Xe and 133m Xe conversion electron peaks, it is not enough to fully separate the two conversion electrons of 131m Xe, Figure 5.…”

An alpha–gamma coincidence spectrometer based on the photon–electron rejecting alpha liquid scintillation (PERALS®) system

“…This gives detection limits for actinides such as 237 Np and 241 Am of to 2 mBq. As several recent studies have examined the use of solid state scintillators or detector for detection of xenon nuclides [34,[41][42][43][44][45], the behavior of the PERALS® coincidence system was also investigated in beta/gamma operation with a 133 Xe sample. The SCA window was adjusted to cover the region of the beta/gamma pulses in the pulse shape output, and the ancillary electronics were set to generate the gating signal from the beta pulses.…”