Exam (elaborations)
Essentials of Radiographic Physics and Imaging 3rd Edition By James Johnston; Terri L. Fauber
- Course
- Institution
- Book
Essentials of Radiographic Physics and Imaging 3rd Edition By James Johnston; Terri L. Fauber
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
More summaries for
-
RTE 1401 Essentials of Radiographic Physics & Imaging ch 1
-
Complete Test Bank Essentials of Radiographic Physics and Imaging 3rd Edition Johnston Questions & Answers with rationales (Chapter 1-17)
-
Test Bank for Essentials of Radiographic Physics and Imaging, 3rd Edition by James Johnston; Terri L. Fauber| All Chapters Included| 100% Verified
Seller
Follow
kushboopatel6867
Reviews received
Content preview
Test Bank For Essentials of Radiographic Physics and Imaging3rd Edition By James Johnston; Terri L. Fauber
What does an alpha particle consist of? - ANSWER: 2 protons and 2 neutrons
What are x ray and gamma ray similarities? - ANSWER: They are the highest energy
members and have the ability to ionize matter.
What are two types of ionizing radiation? - ANSWER: particulate and
electromagnetic
How do x rays and gamma rays differ? - ANSWER: Each originate from a different
energy source.
gamma rays originate from - ANSWER: nuclei of atoms and represent the excess
energy the atom is giving off to reach a stable state.
x-rays originate through - ANSWER: interactions between electrons and atoms
X-rays are produced when - ANSWER: fast moving electrons within the x-ray tube
strike the atoms of the metal in its target
What are two types of electromagnetic radiation? - ANSWER: Ionizing and non-
ionizing
Define electromagnetic radiation - ANSWER: An electric and magnetic disturbance
traveling at the speed of light.
Tanning beds use what type of electromagnetic radiation? - ANSWER: Ultraviolet
Why do some objects appear black? - ANSWER: represents absorption of all color
wavelengths.
If an x-ray beam has an intensity of 1.2 mGy at 40 inches, what is the intensity of the
beam at 60 inches? - ANSWER: 0.53
What is the unit of measurement for frequency? - ANSWER: Hertz (Hz)
What is common use for radio waves? - ANSWER: MRI- Magnetic Resonance Imaging
Define radioactive decay - ANSWER: A radioactive element giving off excess energy
and particles to regain stability.
, Name one thing that all of the members of the electromagnetic spectrum have in
common. - ANSWER: They have the same velocity
Speed of light
how to the members of the electromagnetic family differ? - ANSWER: have the same
velocity however they vary in energy, wavelength, and frequency.
What does intensity do as distance from the source increases? - ANSWER: Decreases
How are microwaves used to heat up food? - ANSWER: They hit the atoms of the
food giving them excess energy causing a vibration of atoms and molecules.
If the frequency of electromagnetic radiation decreases what will the wavelength
do? - ANSWER: Increase
Which of the following do not originate from an unstable nucleus? Gamma rays, x
rays, alpha particles, or beta particles? - ANSWER: x-rays
Define wavelength - ANSWER: Measure of distance from the peak of one wave to the
peak of the next wave.
Who developed the electromagnetic theory? - ANSWER: James Maxwell
What are the characteristics of electromagnetic radiation? - ANSWER: *carries
energy in waves
*causes magnetic/electrical disturbances
*Travels at the speed of light
*can ionize matter and cause biological damage
*2 types ionizing /non-ionizing
*needs no medium (no mass)
*can travel through a vacuum
What are the 2 types of disturbances caused by electromagnetic radiation? -
ANSWER: *electric
*magnetic
1 kilohertz (kHz) is equal to:_____hertz - ANSWER: 1,000
Define amplitude - ANSWER: Maximum height of the wave
Which has the shortest wavelength/most energy?
X-rays or visible light - ANSWER: X- rays
Is E=hf direct proportionality or inverse - ANSWER: Direct -if energy increases so
does frequency
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller kushboopatel6867. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $17.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75323 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now