P 10 Methane Gas mixture is used in the detectors. A typical XRF spectrometer has X-ray source, sample chamber, analysing crystal, detector and signal processing computer etc. Because the secondary radiation produces such weak photons, the tubes that involve radiation transport must be kept in a vacuum. Gas flow proportional detectors are normally used to detect longer wavelength. They are filled with gas, typically a gas mixture of 90% argon & 10% methane (called as “P 10”). The argon is ionized by incoming X-ray photons, and the electric field multiplies this charge into a measurable pulse Contact now for your P-10 Methane Gas demands.