Difference between revisions of "Monitor and operate the microwaves / know how to find correct frequency"

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==Proton Frequency==
==Proton Frequency==

Revision as of 17:23, 12 June 2020

Using LabView for mmWaves

  • (David?)

Finding the correct frequency

In order to start looking for the optimum millimeter/microwave frequency, the variables below are important to know. Note that here the frequencies are given in GHz, as the frequency for 5 T fields will always be around 140 GHz.

  • Electron Gyromagnetic Ratio: <math>\frac{\gamma_e}{2\pi}=28.024~951~6~\mathrm{GHz/T}</math>
  • Proton Gyromagnetic Ratio: <math>\frac{\gamma_p}{2\pi}=0.042~577~478~92~\mathrm{GHz/T}</math>
  • Deuteron Gyromagnetic Ratio: <math>\frac{\gamma_D}{2\pi}=0.006~535~902~311~\mathrm{GHz/T}</math>

In order to find both the ideal mm-wave and NMR frequencies, some combination of the above numbers are multiplied by the magnetic field strength <math>B</math> in T. This gives the particle's Larmor frequency, <math>\nu_i = \frac{\gamma_i}{2\pi}B</math>, that is used in the descriptions below.

Proton Frequency

Proton mmwaves.png