Wiktionary
n. the electromagnetic radiation produced by the acceleration of a charged particle, such as an electron, when it is deflected by another charged particle, such as an atomic nucleus
Wikipedia
Bremsstrahlung (, from "to brake" and "radiation"; i.e., "braking radiation" or "deceleration radiation") is electromagnetic radiation produced by the deceleration of a charged particle when deflected by another charged particle, typically an electron by an atomic nucleus. The moving particle loses kinetic energy, which is converted into a photon, thus satisfying the law of conservation of energy. The term is also used to refer to the process of producing the radiation. Bremsstrahlung has a continuous spectrum, which becomes more intense and whose peak intensity shifts toward higher frequencies as the change of the energy of the decelerated particles increases.
Broadly speaking, Bremsstrahlung or braking radiation is any radiation produced due to the deceleration (negative acceleration) of a charged particle, which includes synchrotron radiation, cyclotron radiation, and the emission of electrons and positrons during beta decay. However, the term is frequently used in the more narrow sense of radiation from electrons (from whatever source) slowing in matter.
Bremsstrahlung emitted from plasma is sometimes referred to as free/free radiation. This refers to the fact that the radiation in this case is created by charged particles that are free; i.e., not part of an ion, atom or molecule, both before and after the deflection ( acceleration) that caused the emission.
Usage examples of "bremsstrahlung".
It meant Bremsstrahlung was broadcasting more remanent irritation than he should be letting himself feel—after all, the very purpose of Dream-Seat specialists like himself was to feel nothing, but only be wholly receptive to whatever sensations might come through the Seat.
To be a sensitive meant that one was particularly good at using the Dream Seat to “listen” for signs of external intelligence, and of course Bremsstrahlung himself was among the most sensitive beings ever found.
Both were upset— in the boy’s case, she was sure, mostly because Bremsstrahlung was.
So one day, on Bremsstrahlung’s time off, they were permitted to gaze at the emplacements from a safe distance.
The woman’s body told her when it was time, and then she told the man—somehow or other— it didn’t seem to need words, but Bremsstrahlung had been vague about that part of it.
The viewscreen blazed with rainbow light as a shining ovoid shape came plunging in along the vec-tor Speedwell had used, bremsstrahlung fire sleeting and sheeting away from it, dying back to leave only the fierce sheen of RV's light on what was now re-vealed as a great, sleek, egg-shaped hull.