论文信息 - Dual-energy Compton-scatter densitometry

Dual-energy Compton-scatter densitometry

Abstract The determination of the electron density of a substance may lead to characterization of the structure and function of the substance. Medical applications of this assessment may provide useful information describing the status of human tissues, such as bone. The non-invasive method presented here is the dual-energy Compton-scattering technique, which incorporates the determination of an effective attenuation coeffecient for the substances under study. The theoretical considerations of dual-energy Compton scattering are presented, as well as the results of experiments using samples of materials of known electron density. The radionuclide gadolinium-153 provides two photon energies, 41 keV and 100 keV for the scatter measurement. This method is found to have an accuracy of 1–3%.

J. B. Weaver | A. L. Huddleston | J. Weaver | A. Huddleston

[1] A. Huddleston,et al. Compton scatter densitometry in cancellous bone. , 1979, Physics in medicine and biology.

[2] P. Karjalainen,et al. A 170Tm gamma scattering technique for the determination of absolute bone density. , 1975, The British journal of radiology.

[3] J. Weaver,et al. Geometrical considerations for Compton scatter densitometry. , 1979, Medical physics.

[4] P. R. Bevington,et al. Data Reduction and Error Analysis for the Physical Sciences , 1969 .

[5] T. J. Kennett,et al. Bone density measured by photon scattering. I. A system for clinical use. , 1976, Physics in medicine and biology.

[6] I. Leichter,et al. The effective attenuation coefficient of soft tissue in the presence of Compton scattering from bone: experiments on models. , 1980, Physics in medicine and biology.