The phrase "arriving angle" is correct and usable in written English.
It can be used in contexts related to physics, optics, or navigation, where the angle at which an object approaches a surface or point is relevant.
Example: "The arriving angle of the light beam affects the intensity of the reflection on the surface."
Alternatives: "incident angle" or "approach angle".
We estimated the systematic error of the detection efficiency for each arriving angle from the isotropic horizontal distribution of events (Fig. 6(b)).
Fig. 8 Stopping distribution of incident muons at arriving angle of θ = 80° with energy above (a) 10 GeV, (b) 100 GeV, (c) 1 TeV.
The value of the experimental error (2.5% in determining the density length) was evaluated from the systematic error of the detection efficiency for each arriving angle.
The distribution of the average density was reconstructed by applying the range-energy relationship for cosmic-ray muons through rock to the path length (L) calculated from the surface shape of the mountain for each arriving angle.
The distribution of the average density was reconstructed by applying the flux-depth relationship for cosmic-ray muons through rock (Fig. 1) to the path length (L) calculated from the surface shape of the mountain for each horizontal and vertical arriving angle.
Solid lines show the theoretical curves for large arriving angles.
As shown in Fig. 3(a), the telescope has an angular-dependent detection efficiency that arises from the difference in detection areas and solid angles (geometrical detection efficiency) and the light attenuation in the scintillator for different muon arriving angles.
If the Earth's structure along the muon path is unknown, the information from counting muon events in the detector at different arriving angles can be used to infer the properties of the matter through which the muons traveled.
The PMT signals analyzed in the FPGA chip are recorded in a number of bins representing the horizontal and vertical arriving angles of cosmic-ray muons (Uchida et al., 2010).
A muon detector requires: (1) the capability to track the arriving angles of cosmic-ray muons; (2) a segmented system comprising assembly-type modules, which enables any problem in the system to be identified by monitoring each module, so that a stable long time operation is possible; (3) the capability to eliminate soft component background (Tanaka et al., 2001).
Consider a signal arriving with angle φ as in Figure 20.
