Questions

Where do high-energy photons come from?

Where do high-energy photons come from?

High-energy photons, produced by either X-ray machines or by gamma irradiators, interact with matter in three distinct processes: via the photoelectric effect, via Compton and other scattering processes and via a pair formation process.

Where are the highest energy photons found?

Record-shattering gamma rays from exploded star detected by observatory in Tibet in China. A collaboration of Chinese and Japanese astrophysicists has reported the highest energy photons ever seen: gamma rays with energies up to 450 trillion electron volts (TeV).

Where did the OMG particle come from?

Fastballs. “OMG” was the nickname given to the first example of what are now known as ultra-high-energy cosmic rays, detected in 1991 by the University of Utah’s Fly’s Eye cosmic ray detector. That single proton slammed into our atmosphere going roughly 99.99999999999999999999951 percent the speed of light.

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Where do most cosmic rays originate from?

the Sun
Cosmic rays are high-energy protons and atomic nuclei that move through space at nearly the speed of light. They originate from the Sun, from outside of the Solar System in our own galaxy, and from distant galaxies.

Which of the following processes only occur upon absorption of high energy photons?

Depending on the energy of the photon absorbed or emitted, different phenomena can occur. The greater the distance between energy levels, the higher the frequency of the photon emitted as the electron falls down to the lower energy state.

What has the highest photon energy?

Gamma rays
Gamma rays, a form of nuclear and cosmic EM radiation, can have the highest frequencies and, hence, the highest photon energies in the EM spectrum.

Does the Oh-My-God particle exist?

The Oh-My-God particle (OMG particle) was an ultra-high-energy cosmic ray detected on 15 October 1991 by the Fly’s Eye camera in Dugway Proving Ground, Utah, U.S. At that time it was the highest-energy cosmic ray that had ever been observed.

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Why is it hard to determine where cosmic rays come from?

Total scramble. But magnetic fields can also deflect cosmic rays on their way to our detectors. By the time they reach Earth, their directions are totally scrambled, making it hard to determine their origin. These are uncharged and so travel in straight lines, unaffected by magnetic fields.

Which transition emits the highest energy photon?

The transition that represents the emission of a photon with the highest frequency is n = 3 → n = 1.