Simple microscope using a compound refractive lens and a wide-bandwidth thermal neutron beam

Journal Article · Mon Apr 02 00:00:00 EDT 2007 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2719155· OSTI ID:20960189

Cremer, J T; Park, H; Piestrup, M A; Gary, C K; Pantell, R H; Flocchini, R G; Egbert, H P; Kloh, M D; Walker, R B ^[1]

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1. Adelphi Technology Inc., 981-B Industrial Rd., San Carlos, California 94070 (United States)

The results of imaging experiments using biconcave, spherical compound refractive lenses (CRLs) and a wide-bandwidth thermal neutron beam are presented. Two CRLs were used, consisting of 155 beryllium and 120 copper lenses. The experiments were performed using a thermal neutron beam line at McClellan Nuclear Radiation Center reactor. The authors obtained micrographs of cadmium slits with up to 5x magnification and 0.3 mm resolution. The CRL resolution was superior to a pinhole camera with the same aperture diameter. The modulation transfer function (MTF) of the CRL was calculated and compared with the measured MTF at five spatial frequencies, showing good agreement.

• OSTI ID: 20960189
• Journal Information: Applied Physics Letters, Vol. 90, Issue 14; Other Information: DOI: 10.1063/1.2719155; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
APERTURES
BERYLLIUM
CADMIUM
CAMERAS
COPPER
LENSES
NEUTRON BEAMS
OPTICAL MICROSCOPES
RESOLUTION
SPHERICAL CONFIGURATION
THERMAL NEUTRONS
TRANSFER FUNCTIONS