Rf value - Study guides, Class notes & Summaries
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ARRT review - MRI registry review program questions and answers
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An RF pulse of what flip angle will maximize the component of the net magnetization projected into the transverse plane? 
 
a. 180 
b. 120 
c. 90 
d. 45 
c. 
 
 
 
T1 relaxation refers to ____ relaxation. 
 
a. spin-spin 
b. longitudinal 
c. phase 
d. transverse 
b. 
 
 
 
Which of the following statements is false? 
 
a. T1 relaxation refers to longitudinal recovery of magnetization while T2 relaxation refers to the transverse decay of magnetization 
b. T1 relaxation and T2 relaxation occur sim...
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ARMRIT Exam Questions With 100% Correct Answers | Updated & Verified 2024/2025 (GRADED)
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ARMRIT Exam Questions With 100% Correct Answers | Updated & Verified 2024/2025 (GRADED)Studies have concluded that static magnetic fields up to what tesla produce no substantial harmful 
biological effects. - C)2.0 
Tissues that have low (short) relaxation times have: - Higher relaxation rates 
Nuclei in their natural enviroment ( in the absence of a significant magnetic field) are aligned... - 
Randomly 
Following the injection of a gadolinium enhancement agent, the pulse sequence most commonly...
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ARMRIT STUDY GUIDE PACKET QUESTIONS WITH 100% CORRECT ANSWERS!!
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RADIOFREQUENCY (RF) - ELECTROMAGNETIC RADIATION LOWER IN ENERGY THAN INFRARED. THE 
RF USED IN MRI IS IN THE FORM OF A BURST OF RF ENERGY (PULSE) I THE 10 MHZ TO 100MHZ RANGE 
RF PULS, DELIVERED TO THE PATIENT BY RF TRANSMITTER. THE RF FREQUENCY, AT THE LARMOR 
FREQUENCY, RESULTS IN ROTATION OF THE NET MAGNETIZATION VECTRO AND PHASE COHERENCE OF 
THE NUCLEAR SPINS. AN RF COIL IS USED FOR TRANSMITTING AND RECEIVING MRI SIGNALS (RF). 
FRINGE FIELDS - WEAKER MAGNETIC FIELDS THAT ARE AWAY FROM THE I...
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VDistinction Level BTEC Applied Science Assignment C, Chromatography
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VDistinction Level BTEC Applied Science Assignment C, Chromatography. Soluble :solubility is the degree to which a substance dissolves in a solvent to make a solution 
Solvent : the substance in which a solute dissolved to produce a homogeneous mixture 
Mobile phase : the liquid that transports the substance mixture through the absorbing material which 
travels along the stationary phase and carries the substance components with it 
Stationary phase : the solid material that absorbs the mixture ...
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ARMRIT Exam Questions With 100% Correct Answers | Updated & Verified 2024/2025 | Graded.
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ARMRIT Exam Questions With 100% Correct Answers | Updated & Verified 2024/2025 | Graded. The NMV is rotated to the physical negative Z axis by applying a...? - C)180 pulse 
Increasing which parameter is considered the "best" technique for improving image quality? - C)NEX 
Studies have concluded that static magnetic fields up to what tesla produce no substantial harmful 
biological effects. - C)2.0 
Tissues that have low (short) relaxation times have: - Higher relaxation rates 
Nuclei in their ...
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MCAT AAMC FL 1 Chem and Physics || Questions and 100% Accurate Answers.
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In the chromatography of the reaction mixture, water absorbed on cellulose functioned as the stationary phase. What was the principal factor determining the migration of individual components in the sample? 
 
A.Hydrogen bonding 
B.Solute concentration 
C.Stationary phase concentration 
D.Thickness of paper - The correct answer is A. 
 
This is an Organic Chemistry question that falls under the content category "Separation and purification methods." The answer to this question is A because the...
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CCDS IBHRE EXAM 2024 WITH 100% CORRECT ANSWERS
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Rheobase correct answersthe lowest point on a strength duration curve at an infinitely long pulse duration 
 
Chronaxie time correct answersthe pulse width at twice the rheobase value. It approximates the most efficient stimulation pulse duration 
 
Charge (formula) correct answersCharge= I(current) x T(time) 
 
Furman's formula correct answersEnergy(microjoules)= I(current)xV(voltage)xT(pulse width) 
 
Ohms law formula correct answersVoltage(electromotive force)= I(current/flow of electrons) x...
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MRI-ARRT study guide Questions with 100% Correct Answers | Updated & Verified | 2024
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The NMV is rotated to the physical negative Z axis by applying a...? - C)180 pulse 
Increasing which parameter is considered the "best" technique for improving image quality? - C)NEX 
Studies have concluded that static magnetic fields up to what tesla produce no substantial harmful 
biological effects. - C)2.0 
Tissues that have low (short) relaxation times have: - Higher relaxation rates 
Nuclei in their natural enviroment ( in the absence of a significant magnetic field) are aligned... - 
Ra...
-
ARMRIT Exam Questions With 100% Correct Answers | Updated & Verified 2024/2025.
- Exam (elaborations) • 51 pages • 2024
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- $16.49
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ARMRIT Exam Questions With 100% Correct Answers | Updated & Verified 2024/2025. The NMV is rotated to the physical negative Z axis by applying a...? - C)180 pulse 
Increasing which parameter is considered the "best" technique for improving image quality? - C)NEX 
Studies have concluded that static magnetic fields up to what tesla produce no substantial harmful 
biological effects. - C)2.0 
Tissues that have low (short) relaxation times have: - Higher relaxation rates 
Nuclei in their natural e...
-
AAMC MCAT Practice Exam 1 Questions and Answers 2024
- Exam (elaborations) • 76 pages • 2024
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AAMC MCAT Practice Exam 1 Questions and Answers 2024 
In the chromatography of the reaction mixture, water absorbed on cellulose functioned as the 
stationary phase. What was the principal factor determining the migration of individual 
components in the sample? 
A) Hydrogen bonding 
B) Solute concentration 
C) Stationary phase concentration 
D) Thickness of paper -Answer-A) Hydrogen bonding 
The answer to this question is A because the relative amount of hydrogen bonding to the 
stationary phas...
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