Apparatus for determining thickness of lining layer
AssigneeJohnson Matthey Public Limited Company
InventorsDave Doyle FERGUSON JNR, Emanuele RONCHI, Carl Robert TIPTON
Life of this patent
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Abstract
An apparatus (2) for determining thickness of refractory material (4) lining a metal vessel (6) is disclosed. The apparatus includes a radiation source (16) for emitting radiation through a metal wall of the vessel and into the refractory material, wherein some of the radiation is scattered by the refractory material, and a radiation detector (20) for detecting radiation scattered by the refractory material through the wall of the vessel. A converter provides an output signal dependent on the quantity of radiation scattered by the refractory material through the wall of the vessel and detected by the radiation detector.
Claims21
1-26. (canceled)
An apparatus for determining thickness of refractory material lining a metal vessel, the apparatus comprising:
- a source of gamma radiation for emitting gamma radiation through a metal wall of the vessel and into said lining material, wherein some of said gamma radiation is scattered by said lining material;
- a radiation detector for detecting said gamma radiation scattered by said lining material through the wall of the vessel;
- and
- a converter for providing at least one output signal dependent on the quantity of radiation scattered by said lining material through the wall of the vessel and detected by said radiation detector.
A method of determining thickness of lining material lining a metal vessel, the method comprising:
- emitting gamma radiation from a gamma radiation source through a metal wall of the vessel and into said lining material, wherein some of said gamma radiation is scattered by said lining material;
- detecting, using a radiation detector, gamma radiation scattered by said lining material through the wall of the vessel;
- and
- providing at least one output signal dependent on the quantity of gamma radiation detected.
Dependencies are inferred from the claim text.