Compton scattering spectrum as a source of information of normal and neoplastic breast tissues' composition

In this work we measured X-ray scatter spectra from normal and neoplastic breast tissues using photon energy of 17.44 keV and a scattering angle of 90°, in order to study the shape (FWHM) of the Compton peaks. The obtained results for FWHM were discussed in terms of composition and histological characteristics of each tissue type. The statistical analysis shows that the distribution of FWHM of normal adipose breast tissue clearly differs from all other investigated tissues. Comparison between experimental values of FWHM and effective atomic number revealed a strong correlation between them, showing that the FWHM values can be used to provide information about elemental composition of the tissues.

► X-ray scatter spectra from normal and neoplastic breast tissues were measured.
► Shape (FWHM) of Compton peak was related with elemental composition and characteristics of each tissue type.
► A statistical hypothesis test showed clear differences between normal and neoplastic breast tissues.
► There is a strong correlation between experimental values of FWHM and effective atomic number.
► Shape (FWHM) of Compton peak can be used to provide information about elemental composition of the tissues.