Question

The characteristic X-ray radiation is emitted, when

• A. The electrons are accelerated to a fixed energy
• B. The source of electrons emits a monoenergetic beam
• C. The bombarding electrons knock out electrons from the inner shell of the target atoms and one of the outer electrons falls into this vacancy
• D. The valence electrons in the target atoms are removed as a result of the collision

Answer 1

The correct option is C

The bombarding electrons knock out electrons from the inner shell of the target atoms and one of the outer electrons falls into this vacancy