24 October 1997 Phase-contrast x-ray tomography using synchrotron radiation
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The principle and experimental l realization of x-ray phase- contrast in compute assisted microtomography ((mu) CT) at the micrometer resolution level is described. The camera used is a modification of a setup previously developed by us for attenuation-contrast (mu) CT using synchrotron x-rays. Phase detection is accomplished by employing the x-ray interferometer. By using x-ray phase contrast it is possible to image structural details in low-z biological tissues much better than with absorption contrast. The advantage of phase over attenuation contrast is not limited to light element or to low x-ray energies. Examples of applying phase contrast (mu) CT to the structural investigation of rat trigeminal nerve are given.
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Ulrich Bonse, Felix Beckmann, Markus Bartscher, Theodor Biermann, Frank Busch, Olaf Guennewig, "Phase-contrast x-ray tomography using synchrotron radiation", Proc. SPIE 3149, Developments in X-Ray Tomography, (24 October 1997); doi: 10.1117/12.279351; https://doi.org/10.1117/12.279351

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