Chapter 2 Interaction of X-radiation with Matter
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| kVp controls ____ or penetrating power. | show 🗑
|
||||
| show | quantity
🗑
|
||||
| ________ dose (D) is the amount of energy received by the atoms of the patients body. | show 🗑
|
||||
| show | absorption; scatter (or not interact at all)
🗑
|
||||
| Attenuation is the ___ in the number of photons as they pass through matter. | show 🗑
|
||||
| show | thermionic emission
🗑
|
||||
| Bremsstrahlung radiation is also known as ____ radiation. | show 🗑
|
||||
| During _______ radiation, a projectile electron interacts with an inner shell electron. | show 🗑
|
||||
| Characteristic radiation is also known as ______ radiation. | show 🗑
|
||||
| At the target, ___% is heat and _% is the x-ray. | show 🗑
|
||||
| show | 186,000
🗑
|
||||
| show | 70
🗑
|
||||
| At ___ kVp, 15% of x-rays are characteristic radiation. | show 🗑
|
||||
| show | tube
🗑
|
||||
| Primary beam is the radiation that passes through the ____. | show 🗑
|
||||
| show | Leakage
🗑
|
||||
| show | Remnant (exit, image forming)
🗑
|
||||
| Primary radiation is also known as ___ radiation. | show 🗑
|
||||
| show | filter
🗑
|
||||
| Filters remove low energy photons and ___ patient skin dose. | show 🗑
|
||||
| Filters are usually made of ___ because of their ___ melting point and ___ Z#. | show 🗑
|
||||
| show | 20; 150
🗑
|
||||
| Average photon in the x-ray beam is about ___ the energy of the most energetic photon. | show 🗑
|
||||
| show | Isotropic
🗑
|
||||
| ____ occurs when photons pass through matter and do not interact. | show 🗑
|
||||
| During the _____ effect, all the energy of the incoming photon is totally transferred to the K or L-shell electron. | show 🗑
|
||||
| A _____ is an ejected orbital electron. | show 🗑
|
||||
| The photoelectric effect is also known as ______ radiation. | show 🗑
|
||||
| show | increase
🗑
|
||||
| Compton scatter is a.k.a _____. | show 🗑
|
||||
| show | less;longer;lower
🗑
|
||||
| show | partially
🗑
|
||||
| show | recoil/secondary/scattered electron
🗑
|
||||
| At ___ kVp, 50% of the interactions is compton and 50% are PE. | show 🗑
|
||||
| At ____ kVp, 67% are compton interactions and 33% are PE. | show 🗑
|
||||
| show | scatter
🗑
|
||||
| A chemical with an increased binding energy (Lead, barium) will have attenuate ____ photons. | show 🗑
|
||||
| The Compton photon has ___ energy, a longer wavelength and a lower frequency than the incident photon. | show 🗑
|
||||
| Coherent scattering (slassic, elastic or unmodified) occurs primarily with low energy x-rays, below ____ keV. | show 🗑
|
||||
| In coherent scattering, excess energy is given off as ___ with the exiting photon having the same energy and wavelength as the incident photon. | show 🗑
|
||||
| In pair production, incoming photon interacting with the nucleus must have an energy above ____MeV. | show 🗑
|
||||
| show | positron; negatron
🗑
|
||||
| show | 10
🗑
|
||||
| show | annihilation reaction
🗑
|
||||
| show | 10
🗑
|
||||
| During photodisintegration, a high energy electron (radiation therapy) is absorbed by the _____. | show 🗑
|
||||
| show | radioactive
🗑
|
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:
teachable monkeys
Popular Radiology sets