Magnetization Study guides, Class notes & Summaries
Looking for the best study guides, study notes and summaries about Magnetization? On this page you'll find 122 study documents about Magnetization.
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ARMRIT Practice test| 30 Questions| accurate 100%
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ARMRIT Practice test| 30 Questions| accurate 100% 
 
Magnetism can be defined as the ability of certain substances to attract: - ANSWER Iron, Cobalt, Nickel 
 
The components of the Gyro-magnetic ratio are: - ANSWER Magnetic moment to angular momentum 
 
Which type of electromagnetic coils produce smaller magnetic field which allow spatial localization to be performed? - ANSWER Gradient coils 
 
Which type of MRI magnet requires cryogen to cool magnetic coils to 4 degrees Kelvin? - ANSWER Superc...
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CWB 1 Exam (2024/2025) (Verified Answers).
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CWB 1 Exam (2024/2025) (Verified Answers). 
1. Which is not a recommended method for surface cleaning of a part for liquid 
penetrant examination? 
a) Cleaning with organic solvents. 
b) Blasting with shot or dull sand. 
c) Cleaning with de-greasers. 
d) Use of de-scaling solutions. 
e) Ultrasonic cleaning methods. - Correct answer-b) Blasting with shot or dull sand. 
2. Which of the following weld defects is most likely to be missed by radiography in a 
weld: 
a) Undercutting. 
b) Porosity. 
c)...
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MRI ARMRIT physics Exam Questions and Answers
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MRI ARMRIT physics Exam Questions and Answers 
T2 is the measurement of time for the transverse component of the net magnetization vector to 
decrease what percentage of its maximum value after the application of a 90 degree radio 
frequency pulse - Ans ️️ -37% 
The NMV is rotated to the physical negative Z axis by applying a...? - Ans ️️ -C)180 pulse 
Increasing which parameter is considered the "best" technique for improving image quality? - 
Ans ️️ -C)NEX 
Studies have concluded...
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practice test 1 armrit| 30 Questions | accurate Answers!!
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practice test 1 armrit| 30 Questiondifferent tissues that have signals that appear similar on a mr image are described as: - ANSWER isointense 
 
In a large main magnetic field such as those employed in MRI, the motion of a hydrogen proton has been described as wobbling like a spinning top. This motion is called: - ANSWER Prescession 
 
Magnetic resonance imaging is derived from the process known as: - ANSWER Nuclear magnetic resonance 
 
Once the net magnetization vector (nmv) has moved away fr...
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Armrit Test MRI PHYSICS Questions With Correct Answers
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Signal - Answer Current induced iby receiver coil. Also comes from the procession of protons in the patient. 
 
Chemical pre saturation - Answer Selectively apply 90 degree pulse at frequency of tissue to be saturated. Moves fat or HBO 90 degrees. 2nd puse wider bandwidth moves both fat and water 90 degrees. One will be saturated so will not be read. Saturating out normal anatomy, pathology is often seen more clearly. 
 
NEX number of excitations - Answer is the number of times each line is fill...
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ARMRIT PHYSICS PRACTICE TEST 2023-2024 WITH COMPLETE SOLUTIONS.
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The tissue characteristic that depends heavily on the relative content of fat molecules and free water is: - ANSWER-Hydrogen concentration. 
 
T1 is the measurement of time for the longitudinal component of the net magnetization vector to recover what percentage of its original value after the application of a 90 degree radio-frequency pulse? - ANSWER-63% 
 
Immediately after an initial 90 degree radio-frequency pulse is turned off, the hydrogen protons will begin to: - ANSWER-Dephase 
 
A 90 de...
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Magnetic Resonance Imaging (MRI) Questions and Answers 2023
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Magnetic Resonance Imaging (MRI) Questions and Answers 2023 
MRI 
- Provide high resolution anatomic structure (as with X-ray CT) 
- Provide high contrast between different soft tissue (X-ray CT cannot) 
- No exposure to radiation and hence safe 
- More complicated instrumentation 
- Takes longer to acquire scan than CT, more susceptible to patient motion 
 
 
 
MRI components 
1. primary magnet 
2. gradient magnets 
3. radiofrequency coils 
4. scanner 
5. computer system 
6. patient table 
 
 
...
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MRI chapter 1: Basic Principles Questions and Answers 2023
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MRI chapter 1: Basic Principles Questions and Answers 2023 
atom 
a tiny element that is the basis for all things 
 
 
 
molecule 
2 or more atoms arranged together 
 
 
 
hydrogen 
the most abundant atom in the body 
 
 
 
electron 
negatively charged particles that spin around the nucleus 
 
 
 
nucleons 
particles in the nucleus 
 
 
 
proton 
positively charged element of the atomic nucleus 
 
 
 
neutron 
neutral charged element of the atomic nucleus 
 
 
 
atomic number 
sum of protons in ...
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ISP 203B Exam 1 Correctly Answered
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ISP 203B Exam 1 Correctly Answered 
The current theory of plate tectonics states that approximately ________ large 
lithospheric plates comprise the outer 60 to 200 kilometers of the Earth. - ANS ️️ 
12 
The majority of earthquakes and volcanic eruptions occur: - ANS ️️ Near the 
boundaries between lithosphere plates. 
The continental drift hypothesis proposed by Alfred Wegener in 1912 was based 
on all the following except: - ANS ️️ continent movement rates determined by 
GPR measur...
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ISP 203B Exam 1 with complete solutions
- Exam (elaborations) • 8 pages • 2023
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ISP 203B Exam 1 with complete solutions 
The current theory of plate tectonics states that approximately ________ large 
lithospheric plates comprise the outer 60 to 200 kilometers of the Earth. - ANS ️️ 
12 
The majority of earthquakes and volcanic eruptions occur: - ANS ️️ Near the 
boundaries between lithosphere plates. 
The continental drift hypothesis proposed by Alfred Wegener in 1912 was based 
on all the following except: - ANS ️️ continent movement rates determined by 
GPR m...
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