Chapter 7 Study Questions
Help!
|
|
||||
|---|---|---|---|---|---|
| show | 1%
🗑
|
||||
| show | Heat,thermal,or infrared
🗑
|
||||
| Describe a bremsstrahlung target interaction. | show 🗑
|
||||
| show | An incident electron interacts with an inner shell electron, knocking out the inner shell electron and continuing in a slightly different direction, which creates a hole in the inner shell, making the shell unstable.
🗑
|
||||
| What is a characteristic cascade? | show 🗑
|
||||
| What is the average keV of the primary beam as compared to the kVp? | show 🗑
|
||||
| show | When mAs is changed the result is a change in the amplitude of the emission graph.
🗑
|
||||
| What effect does changing kVp have on the total x-ray emission spectrum? | show 🗑
|
||||
| Characteristic Peak | show 🗑
|
||||
| Incident Electrons | show 🗑
|
||||
| show | The actions that take place when the electrons strike their target or focal spot.
🗑
|
||||
| How are x-ray photons produced? | show 🗑
|
||||
| show | x-rays are man made; gamma rays are products of nuclear radioactive decay.
🗑
|
||||
| show | Almost the speed of light.
🗑
|
||||
| How far is the anode from the cathode? | show 🗑
|
||||
| show | solid arrow
🗑
|
||||
| show | wave arrow
🗑
|
||||
| show | energy
🗑
|
||||
| Kinetic Energy | show 🗑
|
||||
| show | Process in which e- in an atom are moved to a higher energy state without actually being removed from the atom; produces heat
🗑
|
||||
| Ionization | show 🗑
|
||||
| What are other some names for incident electrons? | show 🗑
|
||||
| What is infrared radiation? | show 🗑
|
||||
| show | Within .25 to .5 mm of the target surface.
🗑
|
||||
| What are the 3 possible products of target interaction? | show 🗑
|
||||
| show | The quantity of e- available at the cathode.
🗑
|
||||
| What does kVp control? | show 🗑
|
||||
| show | --1.high Z#--2.high melting point--3.similar e- binding energies
🗑
|
||||
| Bremsstrahlung is German for what? | show 🗑
|
||||
| Within the diagnostic x-ray range, most photons are produced by what? | show 🗑
|
||||
| show | the K-shell
🗑
|
||||
| show | 1000+
🗑
|
||||
| show | quantity
🗑
|
||||
| How would you increase e- kinetic energy? | show 🗑
|
||||
| When e- kinetic energy is increased, what 2 things are also increased? | show 🗑
|
||||
| show | to provide a large number of e- with high kinetic energy focused to a small spot on the anode
🗑
|
||||
| The e- traveling from the cathode to the anode constitute what? | show 🗑
|
||||
| show | kinetic energy
🗑
|
||||
| What might a projectile e- interact with? | show 🗑
|
||||
| show | X-rays produced when a projectioe e- is slowed and its direction is changed by the electric field of a target atom
🗑
|
||||
| show | when an outer-shell e- fills an inner-shell void
🗑
|
||||
| show | tungsten
🗑
|
||||
| Characteristic photons will not compose any of the useful beam until kVp is what? Why? | show 🗑
|
||||
| What type of spectrum contains only specific values? | show 🗑
|
||||
| What type of spectrum contains all possible values with the photons ranging from zero to some maximum value? | show 🗑
|
||||
| show | Characteristic x-rays
🗑
|
||||
| All ranges of energies are representative of what type of photon? | show 🗑
|
||||
| show | amplitude (total # of x-rays emitted)
🗑
|
||||
| show | the higher the effective energy or quality of the x-ray beam.
🗑
|
||||
| Between 80 and 100 kVp you can expect the primary beam to be produced by what types and percentages of x-rays? | show 🗑
|
||||
| show | 70
🗑
|
||||
| At < 70kVp you can expect what type of target interaction? | show 🗑
|
||||
| show | --1.higher amplitude--2.increased #of photons--3.increase in high energy photons
🗑
|
||||
| show | brems and characteristic.
🗑
|
||||
| show | The exact difference between the entering and exiting kinetic energy of the e-.
🗑
|
||||
| How do you determine the energy of a characteristic x-ray? | show 🗑
|
||||
| What does "all or nothing" refer to? | show 🗑
|
||||
| As the electron gets closer to the nucleus in brems, what occurs? | show 🗑
|
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:
queenxraynay
Popular Radiology sets