Hi Everybody! Just have read in the Report into the death of Alexander Litvinenko https://www.gov.uk/government/uploa...493860/The-Litvinenko-Inquiry-H-C-695-web.pdf I'm very surpised to see that namely Gamma Spectrometry was used while only 1 in 100,000 Po-210 decays results in emission of Gamma photon. Alpha spectrometry is much more (100,000 times) accurate. What do you think about it? It is purely scientific question. Political consideration should be discussed elsewhere. Suppose that we analyze 1g of kidney. Then Alpha Specrometer would give about 49,000 counts per second (in ideal case). While Gamma spectrometer would have to detect only 1 gamma photon per 2 seconds maximum and it would be hard to separate such low gamma stream from gamma photons from other sources (including background emission).