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How does synchrotron radiation form when electrons move in circular paths?

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Diagram of a tree leaf illustrating photosynthesis, with arrows showing sunlight, water, and carbon dioxide entering the leaf and sugars and oxygen being produced. A person is shown beside the tree to demonstrate the exchange of oxygen and carbon dioxide between plants and animals. — electromagnetic radiation Diagram of photosynthesis showing how water, light, and carbon dioxide are absorbed by a plant to produce oxygen, sugars, and more carbon dioxide.

Synchrotron radiation is electromagnetic energy emitted by charged particles, such as electrons, when their path is altered by a magnetic field while they are moving at speeds close to that of light.1

Because any change in motion constitutes an acceleration, electrons forced into circular orbits by powerful magnetic fields continuously emit radiation. The formation process depends on the speed of the electrons:23

Non-relativistic speeds: For electrons moving slowly in a circular orbit, the emission follows a dipole radiation pattern that is highly peaked at the orbiting frequency.2
Relativistic speeds: When electrons circulate at speeds approaching the speed of light, the radiation pattern changes significantly. The emission collapses into a narrow, intense forward beam directed tangent to the orbit in the direction of the electron's motion.2

This radiation is continuous, highly polarized, and its intensity and frequency are determined by the strength of the magnetic field and the energy of the particles. The brightness of this emission can be further enhanced using specialized magnets, such as wigglers or undulators, which cause the electrons to oscillate or spiral rapidly.123