The TopCount Microplate Scintillation and Luminescence Counter is capable of analyzing radiolabeled microplate samples in a wide variety of formats using liquid and solid scintillation counting techniques. Quench is a common interference in scintillation counting which reduces the sample’s apparent activity. In most applications, the level of quench is constant; hence, it need not be considered...

This article describes CLEAN, an approach to the detection of low-energy solar neutrinos and neutrinos released from supernovae. The CLEAN concept is based on the detection of elastic scattering events (neutrino-electron scattering and neutrinonuclear scattering) in liquified noble gases such as liquid helium, liquid neon, and liquid xenon, all of which scintillate brightly in the ultraviolet. ...

Abstract The deconvolution of liquid scintillation (LS) spectra is meaningful in several scenarios like supporting incomplete radiochemical separations, for screening purposes and determining different isotopes the same element, which explored this paper case 89 Sr/ 90 Sr. In DECLAB , an online application analysis presented. software considers classical calibration modes constant efficiency qu...

The methods for absolute (direct) standardization, coincidence method for radionuclides emitting several simultaneous radiations and liquid scintillation counting for radionuclides emitting a single radiation, the obtained results, as the technical basis for a primary radioactivity standard recognition, are shortly reviewed. They were published in many scientific papers. The key and supplementa...

Detecting and quantitating alpha emitting radionuclides are routine tasks in nuclear energy and environmental monitoring. For this purpose, liquid scintillation counting (LSC) is an excellent method because alphas are counted with nearly 100% counting efficiency with low backgrounds, even with severe quenching. Quenching agents such as inorganic acids, organic acids, and extractive scintillator...

We appreciate the opportunity to address the comment by Schwarz et al. (2011) concerning our calibration of the Ar/Ar chronometer (Renne et al., 2010). In particular, we thank Schwarz et al. for partially clarifying the sensitive dependence of liquid scintillation counting (LSC) data on the branching ratio (kb/ke) for determination of the K half-life. This dependence is as stated “. . . easily ...

Transport and metabolism of IAA-1-(14)C in Coleus blumei Benth. was studied by means of a combination of liquid scintillation counting, autoradiography and thin-layer chromatography. Transport of IAA in petiole segments of increasing age (No. 2-8) was strictly polar in a basipetal direction. No acropetal movement occurred in either young or old tissues. The greatest amount, expressed as a perce...