Abstract Compared with other methods for measuring radioactivity in water, liquid scintillation measurement has the outstanding advantages of fast sample pretreatment, simple method and high detection efficiency. Based on spectrometer (SIM-MAX LSA3000B), 14 C 90 Sr- Y are selected as typical nuclides to study change TDCR quenching correction curve under different activity concentrations, basic ...

The cosmogenic nuclide exposure history method is undergoing major developments in analytical, theoretical, and applied areas. The capability to routinely measure low concentrations of stable and radioactive cosmogenic nuclides has led to new methods for addressing long-standing geologic questions and has provided insights into rates and styles of sur"cial processes. The di!erent physical and c...

Introduction: Internal exposure to radon gas progeny can lead to serious biologic damages to the lung tissue. The aim of this study was to evaluate the absorbed dose by lung tissue due to the exposure from short-lived radioactive products of radon (222Rn) decay using Monte Carlo simulation. Material and Methods: A lung equivalent p...

We explore the possibility that the short-lived radionuclides A 26 l, F 60 e, P 107 d, and H 182 f inferred to be present in the proto-solar cloud originated from 3–8M☉ asymptotic giant branch (AGB) stars. Models of AGB stars with initial mass above M 5 ☉ are prolific producers of A 26 l owing to hot bottom burning (HBB). In contrast, F 60 e, P 107 d, and H 182 f are produced by neutron capture...

Uncertainty propagation formulae are presented for age dating in support of nuclear forensics. The age of radioactive material in this context refers to the time elapsed since a particular radionuclide was chemically separated from its decay product(s). The decay of the parent radionuclide and ingrowth of the daughter nuclide are governed by statistical decay laws. Mathematical equations allow ...