This video is from our radiography discovering website www.radtechbootcamp.com
Radtechbootcamp.com was produced to help empower radiography trainees and those preparing for their ARRT exams by supplying premium videos, quizzes, and mock tests
This Video covers the main concepts of x-ray production. X-rays are real, and they need to be created in a very specific way.
There are three requirements of x-ray production:
– A source of electrons
– A method of quickly accelerating (or energizing) those electrons
– A method of quickly slowing down (or de-energizing) those electrons
If any of these requirements are missing out on, x-rays will not be produced.
In radiography, all three actions of x-ray production take place inside of the x-ray tube.
– Electrons are produced in the x-ray tube at the cathode filament.
– The particular procedure is called “thermionic emission,” which is the release of electrons in response to heat.
A present going through the filament triggers it to become extremely hot, so hot that electrons are really dissociated from the metal and form an electron cloud around the filament.
This is kind of like the filament in an incandescent light bulb. A present going through the light filament produces heat which creates light. In an x-ray tube, the filament gets so hot it develops complimentary electrons.
A cloud of electrons does not do us much excellent, so what happens next? That’s where the unicorns come in … not actually.
– The 2nd step of x-ray production is accelerating these electrons, which provides extremely high kinetic energy.
– This is accomplished by using an electrical voltage, called the kilovoltage capacity (kVp). The kVp produces a strong negative charge in the filament that forces the electrons throughout the x-ray tube to the favorably charge anode.
– This makes sense because opposites attract. The electrons are pushed back by the negatively charged cathode and brought in to the favorably charged anode.
The last action in x-ray production is decreasing the electrons.
These highly energetic electrons knock into anode of the x-ray tube.
– In the process of slowing down, they release their energy as heat and, more significantly, x-rays.
The variety of x-rays and energy of x-rays are in fact controlled by the technologist using the mA and kVp …
– Increasing mA (tube current) increases the number of electrons produced in the x-ray tube. Increasing the number electrons increases the number photons. This is the idea intensity.
– The result of altering the kVp is a little different …
– Increasing kVp (tube capacity) increases the energy of electrons in the x-ray tube. Increased electron energy leads to increased x-ray energy.
For more videos like this please visit us at WWW.RADTECHBOOTCAMP.COM
https://xraytechniciancertification.org/how-does-x-ray-work-x-ray-production/
No comments:
Post a Comment