Dynamically computed X-ray input power for consistent image quality
Presented is a system and method for dynamically adjusting X-ray power levels to achieve consistent image quality. The method comprises estimating power and photon density based on current process parameters, comparing those estimates with reference values associated with desirable image quality, ad...
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| Main Author | |
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| Format | Patent |
| Language | English |
| Published |
04.09.2012
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| Online Access | Get full text |
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| Summary: | Presented is a system and method for dynamically adjusting X-ray power levels to achieve consistent image quality. The method comprises estimating power and photon density based on current process parameters, comparing those estimates with reference values associated with desirable image quality, adjusting the X-ray power level in response to the operation of comparing, and then performing the operations of estimating, comparing, and adjusting so that the estimates approach the reference values. In embodiments, the estimating, comparing, and adjusting operations are performed dynamically as process parameters, such as X-ray spot size and distance to the target, dynamically change. The system comprises a database for storing the reference values and a processor for estimating the photon and power density based on current process parameters, comparing the reference values with the estimates, and outputting a signal to adjust one of the current process parameters such as X-ray power level. |
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