Research on Biomedical Engineering
http://www.rbejournal.periodikos.com.br/article/5889fbb15d01231a018b474d
Research on Biomedical Engineering
Original Article

A NEW kVp TOOL AND ITS SENSITIVITY TO SPECTRAL CHANGES

A NEW kVp TOOL AND ITS SENSITIVITY TO SPECTRAL CHANGES

Neto, T.G.; Paula, E. de

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Resumo

This paper describes an improvement on Stanton's original design. It combines an useful feature of the Ardran and Crdoks method with the Stanton method. The device employs a polyethylene reference block alongside adjacent copper wedges. To determine the kVp, the kVp test tool is placed over a conventional X-ray cassette containing a fresh sheet of film and an appropriate exposure,is made at the kVp which one wishes to measure. We used two thicknesses of brass to test the sensitivity of the wedge to spectral changes. The results indicate that the device is useful for measuring kVp over the diagnostic X-ray range (45-110 kVp).

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Abstract

This paper describes an improvement on Stanton's original design. It combines an useful feature of the Ardran and Crdoks method with the Stanton method. The device employs a polyethylene reference block alongside adjacent copper wedges. To determine the kVp, the kVp test tool is placed over a conventional X-ray cassette containing a fresh sheet of film and an appropriate exposure,is made at the kVp which one wishes to measure. We used two thicknesses of brass to test the sensitivity of the wedge to spectral changes. The results indicate that the device is useful for measuring kVp over the diagnostic X-ray range (45-110 kVp).
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