# angle of incidence

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Related to Grazing incidence: Glancing angle

## an·gle of in·ci·dence

1. the angle that a ray entering a refracting medium makes with a line drawn perpendicular to the surface of this medium;
2. the angle that a ray striking a reflecting surface makes with a line perpendicular to this surface.
Synonym(s): incident angle

## angle of incidence

the angle at which an ultrasound beam hits the interface between two different types of tissues, such as the facing surfaces of bone and muscle. The angle is also affected by the difference in acoustic impedance of the different tissues.

## an·gle of in·ci·dence

(anggĕl insi-dĕns)
1. Angle that a ray entering a refracting medium makes with a line drawn perpendicular to the surface of this medium;
2. Angle that a ray striking a reflecting surface makes with a line perpendicular to this surface.
Synonym(s): incident angle.

## angle of incidence

the angle at which a body, object or vector is moving relative to another (e.g. a stationary surface or environmental factor such as wind), often prior to a collision. Example: when playing a snooker ball at a cushion, the angle between the ball's direction of travel and the cushion.
References in periodicals archive ?
Table 1 sums up the interlayer distances and crystallite sizes of P3HT domains determined of the (100) diffraction peak in the GI-XRD patterns at three grazing incidence angles.
9) For the 3[degrees] grazing incidence geometry that was used here, the information depth is about half a micron.
Diffraction at grazing incidence from surfaces, and reflectivity.
Figure 2 shows a schematic of three different methods for obtaining an X-ray diffraction pattern on a blown film: (a) Transmittance of X-ray beam through a lay-flat blown film, (b) Grazing incidence of X-ray beam on a hollow cylindrical blown film (simulating the film bubble), and [c] Transmittance of X-ray beam through the hollow cylindrical blown film, where the beam is transmitted through the front-face (the face immediately encountered by the X-ray beam) and the back-face (the face encountered by the X-ray beam before reaching the image-plate detector) with air between them.
Except for grazing incidence, where interference can occur as in Fresnel's mirror experiment.
UCSD has demonstrated a grazing incidence final optic mirror with high damage threshold.
The system features the state-of-the-art technology, including the capability to perform in-plane grazing incidence diffraction (IP-GID).
With respect to the residual stress analysis, the X-ray diffractometer to be procured in addition to the measurement of residual stresses in the Bragg-Brentano arrangement for residual stress measurement under grazing incidence (grazing incidence) is to be used.

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