title: Hanle effect as a magnetic diagnostic for field-reversed configuration plasmas.
abstract: Hanle effect is presented as a low magnetic-field diagnostic for field-reversed configuration (FRC) plasmas. The non-perturbative technique is capable of measuring not only magnetic-field profile and direction but also field-null position and its shape. Conditions and configurations for the measurement are discussed. The technique is applicable to other low magnetic-field laboratory plasmas, e.g., magnetic-cusps, where measurements of low field are desirable, and it may also be extended to measure the two-dimensional vector magnetic-field.
authors.affiliation: Tri Alpha Energy, Inc., P. O. Box 7010, Rancho Santa Margarita, California 92688, USA.
authors.forename: Deepak K
authors.initials: DK
authors.lastname: Gupta