What's the hard bremsstrahlung emission?

tirwit
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Hi!

I need to know what's the "hard bremsstrahlung emission". I googled it but it only showed papers (and few because my university don't have access to many) on experiences that at some point mention this effect but don't explain it. I know what's bremsstrahlung emission, just don't know what does the "hard" means...

Thanks
Tirwit
 
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I am guessing you will get the information you need by a google search looking at the X ray spectra produced by an X ray tube.In general the spectrum has a smooth bremsstrahlung curve with superimposed peaks which are characteristic of the target atoms.The "hard" emission probably refers to the more energetic(higher frequency) part of the spectrum.
 

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