Abstract Long-lived radon daughters are a critical background source in experiments searching for low-energy rare events. Originating from ambient air, radioactive polonium, bismuth and lead isotopes plate-out on materials that later employed the experiment. In this paper, we examine cleaning procedures their capability to remove PTFE surfaces, material often used liquid xenon TPCs. We find lar...

Carrier-free 209Po solution standards have been prepared and calibrated. The standards, which will be disseminated by the National Institute of Standards and Technology as Standard Reference Material SRM 4326, consist of (5.1597 ±0.0024) g of a solution of polonium in nominal 2 mol · L-1 hydrochloric acid (having a solution density of (1.031±0.004) g · mL-1 at 22 °C) that is contained in 5 mL f...

The mysterious death of Mr. Alexander Litvinenko who was most possibly poisoned by Polonium-210 ((210)Po) in November 2006 in London attracted the attention of the public to the kinetics, dosimetry and the risk of this high radiotoxic isotope in the human body. In the present paper, the urinary excretion of seven persons who were possibly exposed to traces of (210)Po was monitored. The values m...

Successful decommissioning of subsea oil and gas infrastructure requires a safe effective approach to assess manage waste products. These products, often present as scale on internals pipelines, include naturally occurring radioactive materials (NORM) trace metals. Understanding the potential effects these contaminants marine fauna is crucial managing global decommissioning. This review compose...