Sharp Cut off in bremsstralungh

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In summary, the sharp cut off at roughly 35 KeV in the graph of X-ray emission can be attributed to the maximum energy of the incident electrons. This means that no photon with a larger energy can be emitted, as it is only possible to produce a photon of this energy if the electron is completely brought to a stop by passing through the nucleus. This phenomenon is observed in bremsstrahlung and can be altered by changing the accelerating voltage.
  • #1
warrior_1
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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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  • #2
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:
 
  • #3


Yes, you are correct. The sharp cut off at 35 KeV is due to the maximum energy of the incident electrons. This is known as the "energy cutoff" and it is a fundamental principle of bremsstrahlung radiation. As an electron passes through the nucleus, it experiences a deceleration due to the Coulomb force. This deceleration results in the emission of photons, with the maximum energy being equal to the initial kinetic energy of the electron. Once the electron reaches 35 KeV, it no longer has enough energy to produce X-rays and thus, the sharp cut off is observed in the X-ray emission spectrum. This phenomenon is important in understanding the production of X-rays and is utilized in various applications, such as medical imaging and industrial inspections.
 

Related to Sharp Cut off in bremsstralungh

What is a sharp cut off in bremsstrahlung?

A sharp cut off in bremsstrahlung refers to the sudden decrease or complete cessation of the emitted radiation at a certain energy level. This phenomenon is observed in the radiation spectrum of charged particles when they are decelerated or deflected by an electric or magnetic field.

What causes the sharp cut off in bremsstrahlung?

The sharp cut off in bremsstrahlung is caused by the acceleration of charged particles, such as electrons, in the electric field of an atom. As the particle approaches the nucleus, it experiences a strong repulsive force, causing it to decelerate and emit radiation. The emitted radiation has a maximum energy equal to the kinetic energy of the particle at the point of deceleration, resulting in a sharp cut off in the spectrum.

What is the significance of the sharp cut off in bremsstrahlung?

The sharp cut off in bremsstrahlung is important in understanding the interaction between charged particles and matter. It allows scientists to determine the energy of the particles and the strength of the electric field they are encountering. Additionally, the shape of the bremsstrahlung spectrum can provide information about the atomic structure of the material that the particles are interacting with.

Can the sharp cut off in bremsstrahlung be manipulated?

Yes, the sharp cut off in bremsstrahlung can be manipulated by altering the strength of the electric or magnetic field that the particles are passing through. This can be achieved by using different materials or adjusting the parameters of the experimental setup. By changing the cut off energy, scientists can study the behavior of particles at different energies and gain a better understanding of their interaction with matter.

How does the sharp cut off in bremsstrahlung affect radiation therapy?

The sharp cut off in bremsstrahlung plays a crucial role in radiation therapy as it allows for precise targeting of tumors. By manipulating the cut off energy, medical professionals can control the depth at which the particles will deposit their energy in the body. This allows for more accurate and effective treatment of cancerous cells, while minimizing damage to healthy tissues.

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