@misc{oai:repo.qst.go.jp:00067916,
 author = {Tsunoo, Takanori and et.al and 角尾 卓紀},
 month = {Oct},
 note = {The information on the electron densities of bodies is important for the treatment planning of radiotherapy. In order to obtain the electron densities directly, we have developed dual-energy x-ray computed tomography(CT) using synchrotron radiation. It was experimentally proved that the electron density was deduced with about 1 % accuracy from two linear attenuation coefficient. However, the linear attenuation coefficient were measured by a few percent lower than the theoretical ones. We assumed that the less accurate linear attenuation coefficients were caused by the influence of scattered radiation and the non-linearity in the response of the detector. In comparison of the scattered radiation to the simulation results, the
 scattered radiation contributed at the most 0.5 % to the linear attenuation coefficients. Correcting the non-linearity in the detector response functions, the values of linear attenuation coefficient were improved drastically., ROME 2004 NSS - MIC - SNPS and RTSD},
 title = {Measurement of electron density and effective atomic number using dual-energy x-ray CT},
 year = {2004}
}