Loading...
Please wait, while we are loading the content...
Similar Documents
Correction for beam hardening in computed tomography
| Content Provider | Scilit |
|---|---|
| Author | Herman, G. T. |
| Copyright Year | 1979 |
| Description | Journal: Physics in Medicine & Biology The author investigates how one can estimate the total attenuation, p, of a polyenergetic X-ray beam what the total attenuation, m, of a monoenergetic beam would have been along the same ray. He finds that for beams with typical diagnostic X-ray spectra passing through the human body one can find a simple function f such that f(p) is a sufficiently close estimate of m to allow good reconstructions. He also finds that m cannot be accurately estimated from p based on the assumption that the human body consists of water alone. The author's results are demonstrated by reconstructions of a mathematical model of a cross-section of the human thorax. The article is self-contained and includes in its Appendices a detailed discussion of the mathematical nature of the problem of beam hardening in computed tomography. |
| Related Links | http://iopscience.iop.org/article/10.1088/0031-9155/24/1/008/pdf |
| ISSN | 00319155 |
| e-ISSN | 13616560 |
| DOI | 10.1088/0031-9155/24/1/008 |
| Journal | Physics in Medicine & Biology |
| Issue Number | 1 |
| Volume Number | 24 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 1979-01-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Physics in Medicine & Biology Computed Tomography Total Attenuation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Radiology, Nuclear Medicine and Imaging Radiological and Ultrasound Technology |
