Quantitative analysis of hydrogen isotopes in the metal hydride of the neutron tube target

We describe an experimental system for the quantitative analyses of hydrogen isotopes in metal hydride targets. The experimental system consists of a target desorption inlet system (TDIS) and a high-resolution mass spectrometer. The TDIS has a unique design that provides complete desorption of the gas and rapid, direct, and accurate measurements of pressure, volume, and temperature of the total gas desorbed from the target. The mass spectrometer measures partial pressures of the hydrogen isotopes from which the hydrogen isotopic ratios can be calculated. We present the operational parameters for optimum performance of the TDIS and results obtained from gas analyses of erbium hydride targets