发明名称 |
METHODS FOR 2-COLOR RADIOGRAPHY WITH LASER-COMPTON X-RAY SOURCES |
摘要 |
High-contrast, subtraction, x-ray images of an object are produced via scanned illumination by a laser-Compton x-ray source. The spectral-angle correlation of the laser-Compton scattering process and a specially designed aperture and/or detector are utilized to produce/record a narrow beam of x-rays whose spectral content consists of an on-axis region of high-energy x-rays surrounded by a region of slightly lower-energy x-rays. The end point energy of the laser-Compton source is set so that the high-energy x-ray region contains photons that are above the k-shell absorption edge (k-edge) of a specific contrast agent or specific material within the object to be imaged while the outer region consists of photons whose energy is below the k-edge of the same contrast agent or specific material. Scanning the illumination and of the object by this beam will simultaneously record and map the above k-edge and below k-edge absorption response of the object. |
申请公布号 |
EP3139837(A1) |
申请公布日期 |
2017.03.15 |
申请号 |
EP20150789809 |
申请日期 |
2015.05.07 |
申请人 |
Lawrence Livermore National Security, LLC |
发明人 |
BARTY, Christopher P.J. |
分类号 |
A61B6/00;A61B6/03;A61B6/08 |
主分类号 |
A61B6/00 |
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