| Subject | French | English |
| tech. | intensité de source | source intensity |
| environ. | intensité initiale des sources | original strength of sources |
| earth.sc. | intensité spectrale de source | spectral source strength |
| radiat. | intensité spectrale de source | S450 spectral source strength (particles of energy between E and E + dE emitted per unit time) |
| med.appl. | source de lumière de grande intensité | high-intensity light source |