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US 2005/0038488 A1Published application
X-ray apparatus with field emission current stabilization and method of providing x-ray radiation therapy
OwnerAli Jaafar, Victor Chornenkyinventors
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Abstract
The present invention provides apparatus and method for providing a stabilized x-ray output from a field emission x-ray apparatus by monitoring the operating current and adjusting the gap between the anode and cathode to stabilize the output.
Claims19
An apparatus for producing x-rays with operating current control comprising:
- a housing;
- a probe, said probe including:
- distal and proximal ends, with said proximal end being attached to said housing;
- and
- an outer wall structure defining a hollow interior;
- an anode attached to said probe at said probe distal end;
- a cathode having proximal and distal ends, wherein:
- said distal cathode end is disposed within said distal probe end and spaced from said anode to create a gap therebetween;
- and
- said proximal cathode end is disposed within said housing;
- and
- a linear translator attached to said proximal cathode end and being provided for moving said cathode toward and away from said anode to adjust said gap and change the operating current;
- wherein said probe comprises a conductor and said cathode is insulated from said conductor by an insulator therebetween.
10 more elements
An apparatus for providing producing x-rays with operating current control comprising:
- a housing;
- a probe, said probe including:
- distal and proximal ends, with said proximal end being attached to said housing;
- and
- an outer wall structure defining a hollow interior, said outer wall structure including an outer conductive layer and an inner insulative layer;
- an anode attached to said probe at said probe distal end;
- a cathode having proximal and distal ends, wherein:
- said distal cathode end is disposed within said distal probe end and spaced from said anode to create a gap therebetween;
- and
- said proximal cathode end is disposed within said housing;
- and
- a linear translator attached to said proximal cathode end and being provided for moving said cathode toward and away from said anode to adjust said gap and change the operating current.
9 more elements
A method for providing x-ray radiation therapy to a patient having a tumor, said method comprising:
- excising the tumor to create a body cavity;
- disposing within the body cavity an appliance for stretching the body cavity to a desired configuration;
- stretching the body cavity to the desired configuration using the appliance to create a stretched body cavity;
- providing an x-ray apparatus for emitting x-rays for x-ray therapy, the apparatus including an elongate probe with a distal end including an anode and a cathode separated by gap;
- disposing the apparatus within the stretched body cavity;
- irradiating the target with x-rays produced by the apparatus;
- monitoring the operating current of the x-ray apparatus;
- and adjusting the gap between the anode and the cathode at least once to stabilize the x-ray emission to provide the desired irradiation dose rate for the therapy.
5 more elements
Dependencies are inferred from the claim text.