When the SEM's primary electron beam bombards a specimen, it causes the emission of:

Question

Quizplus · Accepted Answer

When the SEM's primary electron beam bombards a specimen, it causes the emission of secondary electrons from elements of the upper layer of the specimen (option A) and characteristic x-rays from the target (option B). Gamma rays are not typically emitted in this process, so option C is incorrect. Therefore, the correct answer is option D, which includes both correct choices.

When the SEM's Primary Electron Beam Bombards a Specimen, It