Scattering Effects as Imaging Signals for (Neutron) Tomography

W Treimer1, 2, M Strobl1, 2, A Hilger2, U Feye–Treimer1

1 University of Applied Sciences (TFH) Berlin, FB II, Luxemburgerstr. 10, D-13353 Berlin, Germany, treimer@hmi.de

2 Hahn-Meitner-Institute Berlin, SF1, Glienickerstr. 100, D-14109 Berlin, Germany

ABSTRACT

In tomography scattering effects are usually unwanted because they reduce the quality of the recon- structed image. Scattered radiation, however, contains information about the scattering object, that is lost in conventional tomography, which uses the decrease of a signal such as absorption (attenuation) of radiation). We can demonstrate that scattering effects such as refraction or small angle scattering can be used as imaging signals for computerized tomography. Even in the case of negligible absorption, perfect images could be reconstructed from scattering data only.

Keywords Scattering, refraction, small angle scattering, double crystal diffractometry