Document Detail


High frequency x-ray generator basics.
MedLine Citation:
PMID:  11865985     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purpose of this paper is to present basic functional principles of high frequency x-ray generators. The emphasis is put on physical concepts that determine the engineering solutions to the problem of efficient generation and control of high voltage power required to drive the x-ray tube. The physics of magnetically coupled circuits is discussed first, as a background for the discussion of engineering issues related to high-frequency power transformer design. Attention is paid to physical processes that influence such factors as size, efficiency, and reliability of a high voltage power transformer. The basic electrical circuit of a high frequency generator is analyzed next, with focus on functional principles. This section investigates the role and function of basic components, such as power supply, inverter, and voltage doubler. Essential electronic circuits of generator control are then examined, including regulation of voltage, current and timing of electrical power delivery to the x-ray tube. Finally, issues related to efficient feedback control, including basic design of the AEC circuitry are reviewed.
Authors:
Wlad T Sobol
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Medical physics     Volume:  29     ISSN:  0094-2405     ISO Abbreviation:  Med Phys     Publication Date:  2002 Feb 
Date Detail:
Created Date:  2002-02-27     Completed Date:  2002-08-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0425746     Medline TA:  Med Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  132-44     Citation Subset:  IM    
Affiliation:
University of Alabama Health System, University of Alabama at Birmingham, 35233, USA.
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MeSH Terms
Descriptor/Qualifier:
Electricity
Equipment Design
Nuclear Medicine / instrumentation*
Physics / methods
Radiology / instrumentation*
Technology, Radiologic
X-Rays

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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