Net dephasing time

{
  "id": "MLC-T-CHM-007841",
  "term": "Net dephasing time",
  "field": "Chemistry",
  "definition": "The measured time constant for the decay of transverse magnetization in the xy plane, written T2-star, which combines true spin-spin relaxation with dephasing caused by inhomogeneity of the static magnetic field. It is always shorter than or equal to the spin-spin relaxation time T2, and for a Lorentzian NMR line the width at half height in hertz equals 1/(π times T2-star).",
  "synonyms": [
    "T2-star"
  ],
  "subject": "Analytical Chemistry",
  "see_also": [
    "spin-lattice relaxation time",
    "spin-spin relaxation"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 697 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/net-dephasing-time/"
}