A diffracted electron emits bremsstrahlung radiation when interacting with matter
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Retrieved technical discussions and expert physics sources directly confirm that electrons undergoing diffraction or scattering when interacting with matter emit bremsstrahlung radiation, although the emitted photons can have extremely long wavelengths at small scattering angles.
# Does the diffracted electron radiate photons?
Tags: diffraction, photon-emission
- Score: 16
- Views: 863
- Answers: 3
- Answered: yes
- Asked by: Paweł Tokarz (345 rep)
- Asked: 2014-12-30
- Site: physics
## Question
When electron is diffracted after the slit it might follow different direction, than before the slit. That means, that going through the slit it gains some acceleration. And accelerated charge emits photons.
Thus - does the diffracted electron radiate photons?
## Answers
### Answer by QuantumDot (score: 1 [ACCEPTED])
I believe the answers given so far are off the mark and do not directly answer the OP's question: do diffracted electrons emit bremsstrahlung radiation/soft photons?
So I give the answer here: The answer is a resounding yes!
However since the diffracted electrons are scattered in the far forward direction (tiny scattering angles), the momentum/energy transfer is minute and therefore the emitted photons have extremely long wavelengths. Therefore, in any practical diffractive experiment, the radiation is undetected. That the radiation is not detected is very important in order to maintain coherence of the system, and therefore leave the diffrac
Coherent bremsstrahlung and parametric X-ray radiation from nonrelativistic electrons in a crystal | Technical Physics Letters | Springer Nature Link
# Coherent bremsstrahlung and parametric X-ray radiation from nonrelativistic electrons in a crystal
- Published: May 2006
- Cite this article
- Volume 32, pages 392–395, (2006)
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## Abstract
X-ray radiation generated by nonrelativistic electrons interacting with a crystal target exhibits several distinctive features in comparison to the relativistic case. The difference is related to the interference of the parametric X-ray radiation and coherent bremsstrahlung, which takes place for the nonrelativistic electrons. The characteristics of this radiation have been studied in the Bragg and Laue geometries in an electron microscope using a beam of electrons with energies in the 50–100 keV range. The necessary requirements on the target parameters, the measuring instrumentation, and the experimental geometry are established. Variation of the X-ray radiation frequency depending on the angle of electron beam incidence on the target in the region
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