| Автор | Carl A Carlsson |
| Дата выпуска | 1999-03-01 |
| dc.description | This review of different principles used in x-ray computerized tomography (CT) starts with attenuation (transmission) CT. The pros and cons of different geometrical solutions, single-ray, fan-beam and cone-beam, are discussed. Attenuation CT measures the spatial distribution of the linear attenuation coefficient, . The contributions of different interaction processes to have also been used for CT. Fluorescence CT is based on measurements of the contribution, , from an element Z with concentration , to the linear attenuation coefficient. Diffraction CT measures the differential coherent cross section , Compton CT the incoherent scatter cross section . The usefulness of these modalities is illustrated. CT methods based on secondary photons have a competitor in selected volume tomography. These two tomography methods are compared. A proposal to perform Compton profile tomography is also discussed, as is the promising method of phase-contrast x-ray CT. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Imaging modalities in x-ray computerized tomography and in selected volume tomography |
| Тип | rev |
| DOI | 10.1088/0031-9155/44/3/011 |
| Electronic ISSN | 1361-6560 |
| Print ISSN | 0031-9155 |
| Журнал | Physics in Medicine and Biology |
| Том | 44 |
| Первая страница | R23 |
| Последняя страница | R56 |
| Аффилиация | Carl A Carlsson; Radiation Physics Department, Faculty of Health Sciences, Linköping University, S-58185 Linköping, Sweden |
| Выпуск | 3 |
