Sharp Cut off in bremsstralungh

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The discussion centers on the sharp cutoff observed in bremsstrahlung X-ray emission at approximately 35 KeV. This cutoff is attributed to the maximum energy of the incident electrons, indicating that no photons can be emitted with energy exceeding this limit. It is noted that some electrons can lose all their kinetic energy in a single impact, which contributes to the observed emission characteristics. Additionally, changing the accelerating voltage will alter the cutoff energy. Understanding this relationship is crucial for analyzing X-ray emission spectra.
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Hi with respect to the bremsstralung and the Xray emission, i have a graph of the xray emmision and at the end of the bremsstrahlung, at roughly 35 KeV,there is a sharp cut off.

Is the reason for this because that 35KeV is the maximum energy of the incident
electrons, and hence no photon can be emitted with larger energy than
this, as it is only possible to produce a photon of this energy if the
electron is completely brought to a stop as it passes through the
nuclues?
 
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warrior_1 said:
Hi with respect to the bremsstralung and the Xray emission, i have a graph of the xray emmision and at the end of the bremsstrahlung, at roughly 35 KeV,there is a sharp cut off.

Is the reason for this because that 35KeV is the maximum energy of the incident
electrons, and hence no photon can be emitted with larger energy than
this, as it is only possible to produce a photon of this energy if the
electron is completely brought to a stop as it passes through the
nuclues?

Correct.Some electrons lose all of their kinetic energy on a single impact.If you use a different accelerating voltage the cut off will change accordingly.:smile:
 
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