Evaluation of temperature and pressure of ablation plasma in an intense, pulsed, ion-beam evaporation

An ablation plasma in an intense, pulsed, ion -beam evaporation has been evaluated from the measurement of ion -flux density by a biased -ion collector. The target mass loss is detected by the measurement of the weight of the target in the comparison before and after the shot. An one-dimensional hydrodynamic model is introduced by assuming a high-power, light-ion beam-driven expansion and the following adiabatic expansion into vacuum. Using this model, it is possible to deduce the temperature and the pressure from the data of the ion flux and the mass loss of the target, respectively. This method can also be applicable to other intense pulsed energy sources such as lasers or electron beams.