How can I calculate the temperature of a PVD beam, if I know the power percentage, voltage, and current ?

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Johannes Gruenwald

Hi,

this question is somehow ill-defined, since an electron beam does not have a temperature in the thermodynamical sense as the energy spread is too low to be really considered to be a Maxwellian. However, you can calculate a kind of temperature equivalent by equating the kinetic energy of you electrons (be careful, this is field or voltage dependent at each space point) and the thermal energy of a monoatomic gas and solving for T.

good luck

Exactly Thomas ;)

Naser Ali

Thanks Johannes and Thomas,

The thing is I'm depositing the particles on my substrate at constant percentage of power , which I would like to express it in terms of temperature to give a better representation of my PVD coating process.

Hi Thomas,

Could you you provide a link as an example of where the pyrometer can be purchased please.

Best regards,

Many thanks Thomas