Chapter 1-Production & properties of x-ray beam
Help!
|
|
||||
|---|---|---|---|---|---|
| What is the device that creates the x-ray beam? | show 🗑
|
||||
| show | x-ray insert
🗑
|
||||
| show | Collimator box
🗑
|
||||
| What, contained within the collimator box, blocks the portion of the beam that is not needed? | show 🗑
|
||||
| show | The part that is projected toward the patient
🗑
|
||||
| -electric current running through the stator, that produces a magnetic field that turns the metal rotor | show 🗑
|
||||
| Cathode contains ___ filaments and has a ____ charge. | show 🗑
|
||||
| show | only one
🗑
|
||||
| show | to liberate electrons
🗑
|
||||
| show | thermionic emission
🗑
|
||||
| show | tungsten bc of its high melting point
🗑
|
||||
| What controls the degree of filament heating? | show 🗑
|
||||
| As the temp increases, the rate of emission will ? | show 🗑
|
||||
| show | the focusing cup
🗑
|
||||
| show | Boost-and-hold stage
🗑
|
||||
| show | thermionic emission
🗑
|
||||
| show | The hold
🗑
|
||||
| The tungsten layer of the tube inhibits? | show 🗑
|
||||
| show | rotating anode
🗑
|
||||
| The area on which the electrons bombard the anode disk is called _______. | show 🗑
|
||||
| show | Tube current
🗑
|
||||
| Tube current is measured in? | show 🗑
|
||||
| What determines the speed at which the electrons move from cathode to anode ? | show 🗑
|
||||
| Raising the kV will make the electrons travel? | show 🗑
|
||||
| show | the speed or kinetic energy of the electrons
🗑
|
||||
| show | thicker = higher
thinner = lower
🗑
|
||||
| The nucleus of an atom contains what? | show 🗑
|
||||
| show | binding energy
🗑
|
||||
| show | higher
🗑
|
||||
| What is the binding energy for level K? | show 🗑
|
||||
| The sudden deceleration causes release of kinetic energy in the form of x-radation, known as: | show 🗑
|
||||
| _______ occurs when a neutral atom either loses or gains an electron. | show 🗑
|
||||
| ________ occurs when a neutral atom loses one of its electrons. | show 🗑
|
||||
| _________ occurs when a neutral atom gains an electron. | show 🗑
|
||||
| Why is the x-ray beams considered to be heterogeneous or polyenergetic? | show 🗑
|
||||
| Doing what to the beam will protect the patient by absorbing the lower energy x-rays? | show 🗑
|
||||
| What are the two types of radation are x-ray beams made of? | show 🗑
|
||||
| show | 1. boiling/separation off of electrons
2. production of high speed electrons
3. concentration of electrons
4. sudden slowing or stopage of electrons
🗑
|
||||
| The boiling or separation of electrons is a process known as? | show 🗑
|
||||
| show | mA
🗑
|
||||
| What effect on density does thermionic emission have? | show 🗑
|
||||
| show | increases them
🗑
|
||||
| show | mA
🗑
|
||||
| What starts the boiling process? | show 🗑
|
||||
| show | increase kVp
🗑
|
||||
| What is the controlling factor of the speed and strength of the photons? | show 🗑
|
||||
| show | increase it
🗑
|
||||
| What handles the concentration of electrons? | show 🗑
|
||||
| What is the difference between photon speed and electron speed? | show 🗑
|
||||
| What controls the sudden slowing or stopping of electrons? | show 🗑
|
||||
| What will determine the amt of projectile electrons? | show 🗑
|
||||
| What makes up the majority of the x-ray beam? | show 🗑
|
||||
| The more energy the projectile electron loses per interaction, the _________ the brems photon will be. | show 🗑
|
||||
| What are the 3 courses of action an electron can take that is characteristic of Brems radiation? | show 🗑
|
||||
| If the photon is stopped instantly, it will be weak?strong? | show 🗑
|
||||
| In order for (K) Characteristic radiation to be produced, the projectile electron has to have energy that is __________________ than the binding energy of the k-shell. | show 🗑
|
||||
| show | K-characteristic
🗑
|
||||
| show | ionized
🗑
|
||||
| What are the 3 regions of electromagnetic spectrum? | show 🗑
|
||||
| List the following in order from lowest/longest to shortest/highest according to the electromagnetic spectrum; gamma, radio, infra-red, x-ray | show 🗑
|
||||
| show | 1.electrons dont all reach peak kinetic energy
2.brems radiation may happen many times getting weaker each time
3.filters remove the low energy photons
🗑
|
||||
| show | frequency
🗑
|
||||
| What is the symbol of frequency? | show 🗑
|
||||
| show | Hz
🗑
|
||||
| The higher the frequency the _______ the photon is. | show 🗑
|
||||
| show | increases the kinetic energy
🗑
|
||||
| show | increase the strength
🗑
|
||||
| show | increases the speed
🗑
|
||||
| Increasing the kVp will have what effect on the frequency of the photon? | show 🗑
|
||||
| Increasing the kVp, will have what effect on the wavelength of the photon? | show 🗑
|
||||
| -the distance between the crests of a wave | show 🗑
|
||||
| show | Lambda
Angstrom
🗑
|
||||
| show | weaker
🗑
|
||||
| -refers to the strongest photon in the beam of radiation | show 🗑
|
||||
| What effect on wavelength does increasing the kVp have? | show 🗑
|
||||
| Strong photon has what frequency and wavelength characteristics? | show 🗑
|
||||
| show | C
🗑
|
||||
| show | 186,000 miles/sec
🗑
|
||||
| show | C= nu(lambda)
🗑
|
||||
| show | A photon (pure energy) acts as tho it has the characteristics of matter
🗑
|
||||
| Increasing the kVp will have what effect on the projectile electron's kinetic energy? | show 🗑
|
||||
| show | increase it.
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
erikasmith28
Popular Radiology sets