What is the Kompler effect ? What is the Compton effect

The so-called Doppler effect is that when a vibrational source such as sound, light, and radio waves moves relative to the observer at a relative velocity v, the frequency of the vibration received by the observer is different from the frequency emitted by the vibration source. Because this phenomenon was first discovered by the Austrian scientist Doppler, it is called the Doppler effect. The change in frequency caused by the Doppler effect is called the Doppler shift, which is directly proportional to the relative velocity v and inversely proportional to the frequency of the vibration.

Pulse Doppler radar is a radar made using the Doppler effect. In 1842, Austrian physicist C. Doppler discovered that the relative motion of the wave source and the observer causes the observed frequency to change, a phenomenon known as the Doppler effect.

。。There's a Kompler effect, as if it's medical.

Kompler (arteriosclerosis test) Early detection, early diagnosis, and early control of arteriosclerosis, Kompler's pulse wave velocity (PWV) measurement system can detect large arteries throughout the body.

Upstairs, the problem of energy momentum in multiple directions is usually the problem of multi-directional energy and momentum, and since it is a microscopic thing, the key thing is to pay attention to the calculation formula of energy and momentum, using the algorithms of quantum physics.

It's the effect of Compton and Doppler hybridization in your brain...

The Compton effect.

1922 In 1923, Compton studied the composition of light after X-rays were scattered by lighter substances (graphite, paraffin, etc.), and found that in addition to the components with the same wavelength as the original wavelength, there were also components with longer wavelengths in the scattering spectrum lines. This scattering phenomenon is known as Compton scattering or the Compton effect.

Experimental results: (1) In addition to the same spectral line as the original wavelength 0, there is also a spectral line of 0 in the scattered light.

2) The amount of wavelength change δ =0 increases with the increase of the scattering angle (the angle between the scattering direction and the incident direction).

3) For the scattering matter of different elements, the amount of change in wavelength at the same scattering angle δ the same. The intensity of scattered light with a wavelength of , decreases with the increase of the atomic number of the scattered.

Compton successfully explained these experimental results using photon theory. The scattering of X-rays is the result of an elastic collision of a single electron and a single photon. Conservation of momentum and energy before and after the collision, there is.

Simplification.

This is called the Compton scattering formula.

The Compton wavelength called the electron.

Why are there spectral lines of the same wavelength as the incident light in the scattered light?Inner electrons cannot be considered free electrons. If a photon collides with such an electron, it is equivalent to colliding with an entire atom, and the energy transferred by the photon to the atom in the collision is very small, almost keeping its own energy constant.

In this way, the original wavelength is retained in the scattered light. Since the number of electrons in the inner shell increases with the increase of the atomic number of the scatterer, the intensity of the wavelength 0 increases and the intensity of the wavelength decreases.

Compton scattering is only significant when the wavelength of the incident light is comparable to the Compton wavelength of the electron, which is why X-rays are used to observe the Compton effect. Whereas, in the photoelectric effect, the incident light is visible or ultraviolet light, so the Compton effect is not obvious.

Summary. In atomic physics, Compton scattering, or compton effect, refers to the phenomenon in which photons from X-rays or gamma rays interact with matter, causing the wavelength to become longer due to the loss of energy.

There is also the inverse Compton effect, where the photon gains energy and causes the wavelength to become shorter. The magnitude of this wavelength change is known as the Compton offset. The Compton effect usually refers to the interaction between the electron cloud of matter and the photon, but there is also the interaction between the nucleus of the material and the photon - the nuclear Compton effect.

In atomic physics, Compton scattering, or compton effect, refers to the phenomenon in which photons from X-rays or gamma rays interact with matter, causing the wavelength to become longer due to the loss of energy. Correspondingly, there is also the inverse Compton effect, in which the photon gains energy and causes the wavelength to become shorter.

The magnitude of this wavelength change is called the Compton offset. The nuclear Blessington effect usually refers to the interaction between the electron cloud of matter and photons, but there is also the interaction between the nucleus of matter and photons - the nuclear Compton effect.

The advantages and disadvantages of the Compton effect are as follows: Advantages: Compton scattering is only significant when the wavelength of the incident light is compared with the Compton wavelength of the electron, which is why X-rays are used to observe the Compton effect.

In the photoelectric effect, the incident light is visible light or ultraviolet light, so the Höpton effect should not be obvious. Disadvantages: If a photon collides with this electron, it is equivalent to colliding with the entire atom, and the energy transferred by the photon to the atom in the collision is very small, and it almost keeps its own energy unchanged.

In this way, the original wavelength is retained in the scattered light. Since the number of electrons in the inner shell increases with the increase of the atomic number of the scatterer, the intensity of the wavelength 0 increases, and the intensity of the wavelength decreases.

Hello, the Compton effect is when a high-energy photon interacts with matter, the photon scatters and loses part of its energy, while the electron gains energy and recoil as a result. This phenomenon was discovered in the 20s of the 20th century by the American physicist Compton, for which he was awarded the Nobel Prize in Physics. The detailed description of the Compton effect is:

When a high-energy photon interacts with matter, the photon interacts with the electron, causing the electron to gain energy and recoil, while the photon scatters and loses some of its energy. The formula for the Compton effect is: δ h mc(1-cos), where δ is the difference between the wavelengths before and after the photon is scattered, h is Planck's constant, m is the mass of the electron, and c is the speed of light, which is the scattering angle.

The study of the Compton effect is helpful for understanding the interaction between light and matter, as well as the distribution of electrons in matter. The Compton effect has a wide range of applications in medicine, such as CT scans. CT scans use the interaction of X-rays with human tissues to reconstruct images by computer to reveal internal organs, bones, and other structures in the human body.

In addition, the Compton effect is used in fields such as the measurement of cosmic rays and cosmic microwave background radiation.