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

AI Thread Summary
A broadband probe head is necessary for NMR experiments when dealing with multiple nuclei or varying field strengths, as it allows for the detection of signals across a wider range of frequencies. The resonance frequency and the impedance matching at 50 ohms are crucial for obtaining accurate signals. While a standard receiver may suffice for a single frequency, a broadband probe enhances versatility and signal clarity. The professor's insistence on using a broadband probe likely stems from these considerations. Understanding the need for such equipment is essential for successful NMR experimentation.
annaline19
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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.
 
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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?
 
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?
 
annaline19 said:
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?
 
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