PRIMES
BeamMonitor BM+ with LDS 2.98
34
Revision 01/2018 EN
11.1.3
Beam find (Menu
Measurement>>BeamFind settings
)
Here, the parameters for the automated beam find are set. The general presetting is helpful for many stan-
dard applications.
Fig. 11.4: Dialogue window
BeamFind settings
The Beam find parameters can be set as follows:
Pixel X, Pixel Y
The selection of the spatial resolution. Search problems can occur with regard to very small beams with 64
x 64 pixels in a 8 mm x 8 mm window, as the pixel distance is about 120 µm. In this case we recommend
the enlargement of resolution.
Trigger
The signal threshold (Trigger) is dependant on the zero level of the measuring system.
Percent
The percentage value indicates by how much the signal has to exceed the zero level in order to be recognized
as a beam. This value is determined by means of the signal-to-noise ratio of the detector.
Window Size Factor
The window size factor determines the size of the measuring window when it comes to the beam search.
The factor indicates how big the measuring window has to be in relation to the beam diameter.
