Moduel 2 questions

• - Transmission 
• - Absorption 
• - Scatter

When incident x-ray photon itneracts iwth an inner shell ele tron of an atom.

• The x-ray photon knocks an innershell electron out of orbit causing that atom to ionize. The atom then has a positive charge ecause it lost an eletron.
• Once the electron from the innershell is knocked out of robit, the outer shell eelctron falls down to take its place.

Occurs when incoming radiation fron an x-ray tube, or incident radiation, interacts with an outershell of an atom and knocks it out of orbit.

Incoming x-ray beam continues on its way but doesnt lost all of its energy. Isntead, it becomes the a scattered x-ray photon and continues on in a different direction with a lower amount of energy.

True.


Whne an x-ray photon knocks an inenrshell out of orbit, photoelectric absorption would occur. Not scatter.

False.

Pleural effusion occurs when fluid fills the pleural cavity where the lungs sit. Therefore this is an addtiive pathologic condition.

True.

Fat and muscle tissue both produce scatter radiation when struck by the primary beam.

• True.
• A high SNR means that more of the x-ray beam reaches the image receptro compared to the undesirable scatter radiation.

• False
• Beam restriction decreaes nosie to the image receptor NAD lowers the patient dose by reducing the amoutn of tissue exposed to the radiographic beam.