Lucas cell
A Lucas cell is a type of scintillation counter.[1] It is used to acquire a gas sample, filter out the radioactive particulates through a special filter and then count the radioactive decay. The inside of the gas chamber is coated with silver-activated zinc sulfide or ZnS(Ag) that scintillates or shines when struck by alpha particles. A photomultiplier tube at the top of the chamber counts the photons and sends the count to the data logger or counter.
Radon measurement
A Lucas cell can be used to measure radon gas concentrations.[2] Radon itself is an inert gas. It's danger lies in the fact that it undergoes radioactive decay. The radon decay products may lodge in the lungs and bombard them with alpha and beta particles, thus increasing the risk of lung cancer.
See also
References
- ^ Lucas, Henry (1957). "Improved Low‐Level Alpha‐Scintillation Counter for Radon". Review of Scientific Instruments. 28 (9): 680–683. Bibcode:1957RScI...28..680L. doi:10.1063/1.1715975.
- ^ Abbady, A.; Abbady, Adel G.E.; Michel, Rolf (2004). "Indoor radon measurement with The Lucas cell technique". Applied Radiation and Isotopes. 61 (6): 1469–1475. doi:10.1016/j.apradiso.2004.03.065. ISSN 0969-8043.