Demonstration of achromatic cold-neutron microscope utilizing axisymmetric focusing mirrors

• Main Authors: Liu, Dazhi (Contributor), Hussey, D. (Author), Gubarev, M. V. (Author), Ramsey, B. D. (Author), Jacobson, D. (Author), Arif, M. (Author), Moncton, David E. (Contributor), Khaykovich, Boris (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), MIT Nuclear Reactor Laboratory (Contributor)
• Format: Article
• Language: English
• Published: American Physical Society, 2013-05-30T18:36:05Z.
• Subjects: Article
• Online Access: Get fulltext

An achromatic cold-neutron microscope with magnification 4 is demonstrated. The image-forming optics is composed of nested coaxial mirrors of full figures of revolution, so-called Wolter optics. The spatial resolution, field of view, and depth of focus are measured and found consistent with ray-tracing simulations. Methods of increasing the resolution and magnification are discussed, as well as the scientific case for the neutron microscope. In contrast to traditional pinhole-camera neutron imaging, the resolution of the microscope is determined by the mirrors rather than by the collimation of the beam, leading to possible dramatic improvements in the signal rate and resolution.
United States. Dept. of Energy (Office of Basic Energy Sciences, Materials Sciences and Engineering under Award No. DE-FG02-09ER46556)
United States. Dept. of Energy (Office of Basic Energy Sciences, Materials Sciences and Engineering under Award No. DE-FG02-09ER46557)
United States. Dept. of Energy (interagency Agreement No. DE_AI01-01EE50660)
National Institute of Standards and Technology (U.S.). Center for Neutron Research
National Institute of Standards and Technology (U.S.). Director's Office
National Institute of Standards and Technology (U.S.). Radiation and Biomolecular Physics Division