The Measurement Of Diagnostic X-Ray Spectra With A High Purity Germanium Spectrometer

Thomas R. Fewell; Kenneth E. Weaver

doi:10.1117/12.954264

1 May 1974 The Measurement Of Diagnostic X-Ray Spectra With A High Purity Germanium Spectrometer

Thomas R. Fewell, Kenneth E. Weaver

Proceedings Volume 0056, Medical X-Ray Photo-Optical Systems Evaluation; (1974) https://doi.org/10.1117/12.954264
Event: Medical X-Ray Photo-Optical Systems Evaluation, 1974, Columbia, United States

Abstract

This paper describes a system which approaches the state-of-the-art in energy dispersive x-ray spectrometry. Special methods for obtaining x-ray spectra from machines operating at high current levels and other phenomena which could cause spectral distortion are discussed. Entrance and exit spectra from some typical diagnostic procedures are shown. It is demonstrated that the exit spectra can be closely approximated by replacing the phantom with aluminum filtration. Since the sensitometric performance of imaging systems is influenced by beam quality, this technique can provide x-ray beams similar to those used in diagnostic radiology. The usefulness of the spectrometer for accurately measuring kVp and determining unknown elements of an intensifying screen is also illustrated.

Citation Download Citation

Thomas R. Fewell and Kenneth E. Weaver "The Measurement Of Diagnostic X-Ray Spectra With A High Purity Germanium Spectrometer", Proc. SPIE 0056, Medical X-Ray Photo-Optical Systems Evaluation, (1 May 1974); https://doi.org/10.1117/12.954264

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