https://doi.org/10.1351/goldbook.09223
Number, \(N\), of energetic particles of a specified type introduced into a solid through a surface area \(A\) divided by \(A\). \(D = N/A\).
Notes:
- The energetic particles are atoms or atom clusters, which can be electrically charged or neutral, and the surface area \(A\) is the geometric surface area.
- For a stationary parallel beam, the areic dose equals the fluence times \(cos\ \theta\), where \(\theta\) is the angle of incidence of the beam to the surface normal. Therefore, the use of ‘fluence’ for ‘dose’ is not recommended.
- In some texts, the term dose density is used, but the term dose (more correctly areic dose) is more widespread. The term dose has been defined very differently in the fields of radiation and the medical sciences. Some have taken the total amount of particle radiation impacting the surface to be the dose, while others consider the amount divided by the area of the surface to be the dose. Here, dose is taken to be the latter. Dose density and dose, where they occur, are to be taken as the areic dose.
- For a discussion of areic dose in relation to ion-implanted reference materials.