Neutron Phase Imaging and Tomography

✍ Scribed by Pfeiffer, F.; Grünzweig, C.; Bunk, O.; Frei, G.; Lehmann, E.; David, C.

• Book ID: 115537857
• Publisher: The American Physical Society
• Year: 2006
• Tongue: English
• Weight: 289 KB
• Volume: 96
• Category: Article
• ISSN: 0031-9007
• DOI: 10.1103/physrevlett.96.215505

✦ Synopsis

We report how a setup consisting of three gratings yields quantitative two-and three-dimensional images depicting the quantum-mechanical phase shifts of neutron de Broglie wave packets induced by the influence of macroscopic objects. Since our approach requires only a little spatial and chromatic coherence it provides a more than 2 orders of magnitude higher efficiency than existing techniques. This dramatically reduces the required measurement time for computed phase tomography and opens up the way for three-dimensional investigations of previously inaccessible quantum-mechanical phase interactions of neutrons with matter.