Table 1 Comparison between methods for direct detection of hydrogen in thin films.
Nuclear methods (NRA, ERDA) | Standard neutron reflectometry | Resonant neutron reflectometry | |
|---|---|---|---|
In situ absorption | No | Yes | Yes |
Simultaneous probe of d | Yes | Yes | No |
Radiation damage | Yes | No | No |
Sensitivity limit | ≲0.1 at.% | ~5 at.%a | ~1 at.% |
Measurable kinetics | No | Several minutes | ≲1 min |
