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- SERF abstract "A spin exchange relaxation-free (SERF) magnetometer is a type of magnetometer developed at Princeton University in the early 2000s. SERF magnetometers measure magnetic fields by using lasers to detect the interaction between alkali metal atoms in a vapor and the magnetic field.The name for the technique comes from the fact that spin exchange relaxation, a mechanism which usually scrambles the orientation of atomic spins, is avoided in these magnetometers. This is done by using a high (1014 cm−3) density of Potassium atoms and a very low magnetic field. Under these conditions, the atoms exchange spin quickly compared to their magnetic precession frequency so that the average spin interacts with the field and is not destroyed by decoherence.A SERF magnetometer achieves very high magnetic field sensitivity by monitoring a high density vapor of alkali metal atoms precessing in a near-zero magnetic field. The sensitivity of SERF magnetometers improves upon traditional atomic magnetometers by eliminating the dominant cause of atomic spin decoherence caused by spin-exchange collisions among the alkali metal atoms. SERF magnetometers are among the most sensitive magnetic field sensors and in some cases exceed the performance of SQUID detectors of equivalent size. A small 1 cm3 volume glass cell containing potassium vapor has reported 1 fT/√Hz sensitivity and can theoretically become even more sensitive with larger volumes.They are vector magnetometers capable of measuring all three components of the magnetic field simultaneously.".
- SERF thumbnail Colliding_Atoms.svg?width=300.
- SERF wikiPageExternalLink magnetometer.
- SERF wikiPageID "9127122".
- SERF wikiPageLength "11717".
- SERF wikiPageOutDegree "28".
- SERF wikiPageRevisionID "678748464".
- SERF wikiPageWikiLink Alkali_metal.
- SERF wikiPageWikiLink Category:American_inventions.
- SERF wikiPageWikiLink Category:Measuring_instruments.
- SERF wikiPageWikiLink Gyromagnetic_ratio.
- SERF wikiPageWikiLink Magnetic_field_sensors.
- SERF wikiPageWikiLink Magnetoencephalography.
- SERF wikiPageWikiLink Magnetometer.
- SERF wikiPageWikiLink Michael_Romalis.
- SERF wikiPageWikiLink Potassium.
- SERF wikiPageWikiLink Princeton_University.
- SERF wikiPageWikiLink SQUID.
- SERF wikiPageWikiLink Spin-destruction_collision.
- SERF wikiPageWikiLink Spin-exchange_collisions.
- SERF wikiPageWikiLink Spin-exchange_interaction.
- SERF wikiPageWikiLink Spin_destruction.
- SERF wikiPageWikiLink William_Happer.
- SERF wikiPageWikiLink File:Colliding_Atoms.svg.
- SERF wikiPageWikiLink File:Colliding_Atoms_SERF.svg.
- SERF wikiPageWikiLink File:SERF_parts_perspective.jpg.
- SERF wikiPageWikiLink File:SimpleVectors.svg.
- SERF wikiPageWikiLink File:Spin-exchange_Rate.svg.
- SERF wikiPageWikiLinkText "(SERF) magnetometers".
- SERF wikiPageWikiLinkText "SERF".
- SERF hasPhotoCollection SERF.
- SERF wikiPageUsesTemplate Template:Citation_needed.
- SERF wikiPageUsesTemplate Template:For.
- SERF subject Category:American_inventions.
- SERF subject Category:Measuring_instruments.
- SERF hypernym Magnetometer.
- SERF type Article.
- SERF type Instrument.
- SERF type Article.
- SERF type Instrument.
- SERF type Tool.
- SERF comment "A spin exchange relaxation-free (SERF) magnetometer is a type of magnetometer developed at Princeton University in the early 2000s. SERF magnetometers measure magnetic fields by using lasers to detect the interaction between alkali metal atoms in a vapor and the magnetic field.The name for the technique comes from the fact that spin exchange relaxation, a mechanism which usually scrambles the orientation of atomic spins, is avoided in these magnetometers.".
- SERF label "SERF".
- SERF sameAs m.027ynrh.
- SERF sameAs Атомный_магнитометр,_свободный_от_спин-обменного_уширения.
- SERF sameAs Q4072221.
- SERF sameAs Q4072221.
- SERF wasDerivedFrom SERF?oldid=678748464.
- SERF depiction Colliding_Atoms.svg.
- SERF isPrimaryTopicOf SERF.