I’m still working through the paper. The title is “bremsstrahlung in Atom atom collisions. 1985 Sov. Physics JETP.Charles Link said:Perhaps you could give a "link" to the paper. It sounds interesting. I anticipate that the mechanisms will result in a finite (rather than zero) emissivity for a band of wavelengths, but I also anticipate, in general, the emissivity resulting from this will still be quite small.
Bremmstrahlung is the emission of electromagnetic radiation, specifically X-rays or gamma rays, by a charged particle when it is decelerated due to collisions with neutral atoms.
Bremmstrahlung occurs because the charged particle loses energy as it is decelerated by the electric field of the neutral atom. This loss of energy is emitted in the form of electromagnetic radiation.
Any charged particle can undergo Bremmstrahlung in neutral atom collisions, including electrons, protons, and heavier ions.
The energy of the emitted radiation is directly proportional to the energy of the charged particle. This means that higher energy charged particles will emit higher energy radiation.
Bremmstrahlung is commonly used in medical imaging and radiation therapy, as well as in industrial processes such as X-ray fluorescence analysis. It is also important in understanding the physics of high-energy particle interactions.