Investigation of Zero-Field (Parametric) Resonance Magnetometer using Optically Pumped Helium.
Technical rept. 17 Nov 71-17 Nov 72,
TEXAS INSTRUMENTS INC DALLAS EQUIPMENT GROUP
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The report describes the investigation of zero-field level crossing and the use of resulting resonances for measuring weak magnetic fields. This work includes investigation of zero-field level crossing in the 2 triplet S1 level of helium 4 investigation of modulated zero-field resonances in the same level, and finally establishes the feasibility of constructing a low-field magnetometer using the parametric resonance n 0, p 1. A device of this type was demonstrated to have a peak-to-peak noise level of 1.0 x 10 to the minus 8th power G in a 0.5-Hz noise bandwidth. Author
- Test Facilities, Equipment and Methods