Rebecca Fahrig
Publication Details
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Magnetostatic focal spot correction for x-ray tubes operating in strong magnetic fields using iterative optimization.
Med Phys. 2012; (9): 5567-83
Combining x-ray fluoroscopy and MR imaging systems for guidance of interventional procedures has become more commonplace. By designing an x-ray tube that is immune to the magnetic fields outside of the MR bore, the two systems can be placed in close proximity to each other. A major obstacle to robust x-ray tube design is correcting for the effects of the magnetic fields on the x-ray tube focal spot. A potential solution is to design active shielding that locally cancels the magnetic fields near the focal spot.
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