Raw dataset for the study on the method of simultaneous regulation of ²²²Rn/²²⁰Rn progeny activity concentration in ²²⁰Rn chamber

A dedicated sampler was used to collect the decay progeny of ²²²Rn and ²²⁰Rn in indoor air onto filter membranes, followed by α-spectrometry measurement of the progeny deposited on the filters using an α spectrometer. By analyzing the measured spectral data via α-spectrometry, the activity concentrations of ²²²Rn and ²²⁰Rn progeny inside the chamber can be derived.

The dataset primarily records the α-spectrometry multi-channel counts (N1–N5, corresponding to different energy windows) under various experimental conditions, including radon/thoron concentrations, temperature, humidity, and sampling type (filter membrane/wire mesh).