NMR Experiments: Why Do I Need a Broadband Probe Head?

[annaline19]

Hello
I have to do an nmr experiement. Why do i need a broadband probe head? I have a magnet with 2 tesla. and modulation coils on it with a frequency of 50hz. For example i have a resonance frequency at 50mhz.
i hope you can pelp me.

 

[Dale]

You shouldn't need a broadband receiver, just a receiver near the Larmor frequency. Are you using the probe for multiple nuclei or field strengths?

 

[annaline19]

the idea is at resonance frequency the resistor is 50ohm. if something is into the probe head 50ohm it differs. and an nmr detector detects this and shows a signal.
the problem is my prof says i need it and i don't want to ask him again because i didnt understand it.
what can the reason be for a broadband signal? is the linewith always the same with this method?

 

[Dale]

my prof says i need it and i don't want to ask him again because i didnt understand it.

Um, that is part of your professor's job.

Again, are you using the same receiver for multiple nuclei or field strengths?