Resistive magnet - Study guides, Class notes & Summaries

The most common type of magnet used in today's MR systems is the _______________. A. resistive magnet B. permanent magnet C. superconducting magnet D. open MR scanner correct answers C. superconducting magnet The positively charged part of an atom is the _____________. A. electron B. neutron C. proton D. nucleus correct answers C. proton When a hydrogen nucleus is positively charged and spins, it generates a small magnetic field called a _____________. A. larmor equation ...

T/F: Current exists in an ideal capacitor only when its voltage is changing True T/F: In a series capacitor circuit, the largest value of capacitance will have the smallest amount of voltage dropped across it. True T/F: In a series capacitor circuit, the largest value of capacitance will have the largest share of total charge on its plates False T/F: Magnetic lines of force never cross one another True T/F: Current flowing through a conductor creates a magnetic fi...

MRSO Safety Exam with Complete Solutions Slew rate - Answer-Speed at which gradient coil turns on and off Time-varying Gradient - Answer-Induced current in a patient Magnetic Flux Lines - Answer-Travel from North to South pole permanent magnet - Answer-Can not be turned off Very inexpensive; extremely heavy Approximately 0.4T Vertical vector Resistive magnet - Answer-Can be turned on and off Costly due to cooling Approximately 0.6T Vertical or horizontal vector Supercond...

What are two categories that diagnostic imaging contrast depends on? - ANSWER-Intrinsic and Extrinsic parameters Intrinsic parameters - ANSWER--T1 recovery -T2 decay -PD -Flow These cannot be manipulated Extrinsic parameters - ANSWER--TR -TE -FA -TI -b-value -echo train These can be manipulated by the MRT Factors that determine T1 and T2 relaxation times of tissue? - ANSWER--the inherent energy of the tissue -how closely packed the molecules are -how well the molecules tumbl...

Magnetic lines of force flow between _______ of a magnet - North Pole and South Pole Resistance is measured in which of the following: - Ohms In a three phase supply system, each phase is _______ with each other: - 120 degrees Power factor in a normal electrical circuit be ______: - Lagging In a series current which of the following quantity remains same: - Current Capacitors used in motors will be rated in _______: - Microfarads A 4 pole motor runs at ______ rpm: - 36...

MRI System Component Questions and Answers 100% correct MRI machines vary in both size and shape The older designs had a more compact and small space and were very closed The scanner hardware required consists of: 1. A magnet 2. A radio frequency source 3.A magnetic field gradient system 4.A computer system 5.An image processor in the scanner hardware the magnet is for __________________ nuclear alignment in the scanner hardware the radio frequency source for RF is ...

T2 is the measurement of time from the transverse component of the NMV to decrease what percentage of its max value after the application of a 90 degree RF pulse - 37% combining a metal ion with a ligand reduces their tendency to bind proteins, enzymes, or membranes, the degree to which they disassociate is a measure of: - toxicity 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 ...

The most common type of magnet used in today's MR systems is the _______________. A. resistive magnet B. permanent magnet C. superconducting magnet D. open MR scanner CORRECT ANSWER C. superconducting magnet The positively charged part of an atom is the _____________. A. electron B. neutron C. proton D. nucleus CORRECT ANSWER C. proton When a hydrogen nucleus is positively charged and spins, it generates a small magnetic field called a _____________. A. larmor equation B...

MRSO Safety Exam Guide |UPDATED!!| 100% Correct Answers Slew rate *Ans* Speed at which gradient coil turns on and off Time-varying Gradient *Ans* Induced current in a patient Magnetic Flux Lines *Ans* Travel from North to South pole permanent magnet *Ans* Can not be turned off Very inexpensive; extremely heavy Approximately 0.4T Vertical vector Resistive magnet *Ans* Can be turned on and off Costly due to cooling Approximately 0.6T Vertical or horizontal vector Superconductive magne...

ASRT test questions on all 12 modules with veried questions & 100 % correct answers already graded A+ The most common type of magnet used in today's MR systems is the _______________. A. resistive magnet B. permanent magnet C. superconducting magnet D. open MR scanner - ANSWER>>>>C. superconducting magnet The positively charged part of an atom is the _____________. A. electron B. neutron C. proton D. nucleus - ANSWER>>>>C. proton When a hydrogen nucleus is p...