Method and apparatus for magnetically determining the Gd.sub.2 O

Details Method and apparatus for magnetically determining the Gd.sub.2 O Method and apparatus for magnetically determining the Gd.sub.2 O

1976-12-27

1979-01-09

Corcoran, Robert J.

Electricity: measuring and testing

Magnetic

Susceptibility

G01R 3312

Patent

active

041340647

ABSTRACT:
A method and apparatus for magnetically determining the Gd.sub.2 O.sub.3 content in UO.sub.2 fuel pellets is described. The alternating current susceptibility of fuel pellets within a zircalloy cladding is measured using an ac inductive technique. Ferromagnetic impurity moments are saturated with a direct current magnetic field. Susceptibility increases with increasing Gd.sub.2 O.sub.3 content when the ferromagnetic component is saturated in fields above 6 kOe.

REFERENCES:
patent: 1952185 (1934-03-01), Smith
patent: 3029380 (1962-04-01), Nicol
patent: 3787761 (1974-01-01), Grossman et al.
patent: 3913009 (1975-10-01), Panasjuk et al.
Lee et al., Quartz Helix-Magnetic Susceptibility Balance-Rev. of Scin. Inst., vol. 29, No. 5, May, 1958, pp. 429-432.

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