SPECS HSA3500 - Splinedef Section; Table 19: Modelist Section Description; Table 20: Splinedef Section Description

HSA config files (*.hsa)
[Mode] WideAngleMode:3.5kV
[Mode] LargeArea:3.5kV
[Mode] MediumArea:3.5kV
[Mode] SmallArea:3.5kV
[Mode] HighMagnification2:3.5kV
[Mode] SmallArea2:3.5kV
[Mode] ImagingMode:3.5kV
[Mode] HighMagnification:1.5kV
...
}
Section Type Description
Mode string, optional,
no body
Name of a HSA3500 mode
definition
Table 19: ModeList section description
3.2.10.5 SplineDef section
Sections of this type define global splines, witch can be referenced within DAC
voltage definitions later in the configuration file. This section has a single entry with
name “points”, its value is a sequence of the spline grid points. The sequence can
have any length, but must be written as a single line of text.
An example for a [SplineDef] section is:
[SplineDef] MyLensMode_T2
{
Points = (1,0.6),(5,3.0),(7,3.78),(10,4.5),(20,6.0),(100,7.3),(150,6.0)
}
Entry Type Description
Points point
sequence,
mandatory
A list of RR-NL pairs, where RR is the retarding ratio
(Ekin – WF)/Ep and NL is a nonlinear factor used in
the lens voltages definitions.
The spline will be called as MyLensMode_T2(-(-$Ekin-
$WF)/$Ep) and would return an interpolated NL-
value.
Table 20: SplineDef section description
34 HSA3500 / HSA3500 plus Power Supply