A rectangular RF excitation pulse is used to flip the net magnetic moment vector into the transverse plane. A 60uT B1 field is used. a. A 90° flip angle is desired. Find the minimum value of the pulse length, tp to obtain the 90° flip.

A rectangular RF excitation pulse is used to flip the net magnetic moment vector into the transverse plane. A 60uT B1 field is used. a. A 90° flip angle is desired. Find the minimum value of the pulse length, tp to obtain the 90° flip.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

1. In the figure below, an electric field is directed out of the page within a circular region of radius R = 2.75 cm. The field magnitude is E = (0.410 V/m · s)(1 – r/R)t, wheret is in seconds and r is the radial distance. R (a) What is the magnitude of the induced magnetic field at a radial distance of 2.00 cm?
A square loop with area of A= 0.25m^2 has a perpendicular magnetic field passing through. If the magnetic field increases from B=2.0T to B=4.0T in 0.2 seconds, what is the induced e.m.f?
An industrial laser is used to bum a bole through a piece of metal. The average intensity of the light is Savg same laser, what is the rms value of the magnetic field? 1.27 x 10 W/m². What is the rms value of the electric field? For this ra a eloctronmagntic waues nhntes nowwrr uniformlyin all directions at a sinele
A capacitor in an LC oscillator has a maximum potential difference of 24.0 V and maximum energy of 184 µJ. When the capacitor has a potential difference of 12.0 V, what is the energy stored in the magnetic field of the inductor, in µJ?
A parallel-plate capacitor with circular plates of radius 55.0 mm is being charged. At what radius (a) inside and (b) outside the capacitor gap is the magnitude of the induced magnetic field equal to 50.0% of its maximum value?
A mass spectrometer is constructed using a velocity selector feeding a chamber of uniform magnetic field, B_ch. The velocity selector is itself constructed using a parallel plate capacitor in a uniform magnetic field, B_in. The electric field in the selector is 7.10 kV/m and the magnetic field is B_in=8.10T.The mass of the ions passing through the exit slit can be found by measuring the distance between the entrance and exit slits. The magnetic field in the circular motion chamber is B_ch=6.33T. What is the radius (in mm) for an ion of mass 6.61e-26 kg and a charge of +e (1.6e-19C)?
A parallel-plate capacitor with circular plates is being charged. Consider a circular loop centered on the central axis and located between the plates. If the loop radius o 3.31 cm is greater than the plate radius, what is the displacement current between the plates when the magnetic field along the loop has magnitude 4.13 µT? Number To.4 Units 0.4 the tolerance is +/-5%