| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,763,465,385 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
precession |
Also found in: Encyclopedia, Wikipedia, Hutchinson | 0.03 sec. |
|
precession [-sesh′ən] Etymology: L, praecedere, to go before a comparatively slow gyration of the axis of a spinning body such that the axis traces out a cone, caused by the application of a torque. The magnetic moment of a nucleus with spin experiences such a torque when inclined at an angle to an applied magnetic field, resulting in precession at the Larmor frequency. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | |
|---|---|---|
Both beams are blocked during the Ramsey microwave interrogation period, which consists of two 250 ms microwave pulses separated by the free precession period [T. With its powerful gradient technology and open design, the Ultra offers clinical capabilities comparable to a high-field MRI system to offer procedures such as True Steady-State Free Precession (SSFP) and Super Fast Advanced Spin Echo (FASE), while accommodating both large and claustrophobic patients. New high-field applications now available on the mid-field OPART include Steady-State Free Precession (SSFP) and T2 Plus. |
| Medical Dictionary |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|