nqr disadvantages - department of physicsmajewski/excerpt.pdf · nqr disadvantages • only works...
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NQRdisadvantages
• Onlyworksforquadrupolarnuclei(spin≥1)• SNRusuallynotashighasNMR• NoabilitytocontroloperaRngfrequency– NMR:frequencydeterminedbyB0andγ– NQR:frequencydeterminedbynaturalcrystalelectricfieldgradientonly• Ifyoudon’talreadyknowtheNQRfrequency,goodluckfindingit• ThereisnoNQRoraverylowfrequencyifthereishighcrystalsymmetry
• Frequencymightbesolow,you’llneverdetectitevenifyoutried