Conventions and Units

Conventions:

Conventions utilized in the HELIOS on-line documentation are listed below.

Menu Item Selection:

Menu item selection is illustrated by the following example:

File | Open

Select the "Open" menu item under the "File" menu.

 

Apply | OK | Cancel Button Definitions:

Apply	Save parameters. Dialog box remains visible.
OK	Save parameters. Dialog box is hidden.
Cancel	Do not save parameters. Dialog box is hidden.

Units:

In general, the following units are used throughout HELIOS.

 

Distance	cm
Time	sec
Temperature	eV
Pressure	J/cm3
Mass Density	g/cm3
Specific Energy	J/g
Radiation Flux	J/s/cm2
Velocity	cm/s
Ion density	ions/cm3
Electron density	electrons/cm3
Mass	g/cmD*
Energy	J/cmD*
Power	J/s/cmD*
Angle	degrees

* D = 0 for spherical geometry, 1 for cylindrical geometery, 2 for planar geometry.

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