General Electric Company

Peter C Eloff

Gregory Reznikov

Dennis G Kukoleck

Thomas Tiearney

A method for making a rotating X-ray tube provides a rotating anode having an integral stem. Initially, a cathode which emits electrons is provided. Next, a preheated anode target which radiates x-ray in response to bombardment by the electrons is provided. The method further comprises the steps of providing an anode stem and inertia welding the preheated anode target to the anode stem to form a rotating anode with an integral stem.

Method for making a rotating anode with an integral shaft

An X-ray tube anode which is composed of a refractory metal having a focal track thereon with the refractory metal including tantalum, hafnium, zirconium and carbon in a minor amount and molybdenum in a major amount. The anode has improved high temperature properties and fabricability. It can be utilized alone or in combination with the usual graphite portion.

Metallic alloy for X-ray target

A high thermal emittance coating for an x-ray tube anode target which permits broader application parameters and a stable coating. The coating is composed of Al.sub.2 O.sub.3 present in an amount of 50% to 80% by weight and ZrO.sub.2 or La.sub.2 O.sub.3 and TiO.sub.2 present in an amount of 50% to 20% by weight with the TiO.sub.2 and ZrO.sub.2 or La.sub.2 O.sub.3 being present in a ratio in the range of 1:1 to 10:1. A preferable coating is composed of about 80% by weight of Al.sub.2 O.sub.3 and 20% by weight of TiO.sub.2 and ZrO.sub.2.

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Cleveland Heights, OH, United States of America

Peter C Eloff