Synchronously pumped NMR gyro

Author

Walker, Thad G. ; Korver, Anna ; Thrasher, Daniel ; Bulatowicz, Michael

Author_Institution

Dept. of Phys., Univ. of Wisconsin-Madison, Madison, WI, USA

fYear

2015

fDate

23-26 March 2015

Firstpage

1

Lastpage

4

Abstract

We are implementing a new design for spinexchange- pumped NMR gyros that addresses the key systematic errors as compared to previous implementations. The key concept is to drive magnetic resonance using spin-exchange collisions in a reference frame rotating about a bias magnetic field. The resulting purely transverse polarization is predicted to be insensitive to spin-exchange field shifts and quadrupole interactions, both of which are prominent in designs based on conventional magnetic resonance. Preliminary studies have identified a novel type of spin-exchange broadening that can be compensated to allow the system to reach T1-limited line width.

Keywords

NMR line breadth; gyroscopes; measurement errors; quadrupole interactions; T1-limited line width; bias magnetic field; nuclear magnetic resonance; quadrupole interaction; spin exchange broadening; spin exchange collision; spin exchange field shift; spin exchange-pumped NMR gyro; systematic error; transverse polarization; Atom optics; Atomic clocks; Magnetometers; Nuclear magnetic resonance; Optical pumping; Xenon;

fLanguage

English

Publisher

ieee

Conference_Titel

Inertial Sensors and Systems (ISISS), 2015 IEEE International Symposium on

Conference_Location

Hapuna Beach, HI

Type

conf

DOI

10.1109/ISISS.2015.7102366

Filename

7102366