Analytics' custom-made, simulated-gas standards provide calibration for gamma-ray spectrometers over a wide energy range. The standards are prepared using Analytics' mixed gamma-ray standard mixtures deposited on a low-density polystyrene matrix in your actual counting containers. The matrix has a density of 0.015 to 0.020 g/cc. These standards require no attenuation corrections over the energy range 59.5 to 1836 keV. The simulated-gas standards have several advantages over gas standards. The simulated standards provide a wider energy range, have longer useful life, require no transfers and are leak proof.

All custom-made, simulated-gas standards are prepared gravimetrically from NIST traceable solutions and are thoroughly QC tested against actual gas standards in the same geometry.