Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
Reexamination Certificate
2007-04-02
2009-12-22
Souw, Bernard E (Department: 2881)
Radiant energy
Geological testing or irradiation
Well testing apparatus and methods
C250S505100, C029S017400, C376S458000, C376S904000, C376S906000, C359S850000, C359S856000
Reexamination Certificate
active
07635839
ABSTRACT:
A method for fabricating a supermirror for forming a neutron guide. In the method, a neutron supermirror, which is widely used in the formation of thin films in cold neutron guides and the spectrometer field, is fabricated with nickel thin films and titanium thin films, having varying thickness, using a combination of monochromator structures in which nickel thin films and titanium thin films, having the same thickness, are stacked in the form of periodic structures. According to the method, a combination of monochromator structures having a variety of different thicknesses is formed, such that the amount of the overlap of peaks due to the monochromator structures can be adjusted to increase reflectivity, and some of the monochromator structures can be removed during the fabrication of the supermirror to make it easy to extract monochromatic beams, such that it is easy to fabricate a transmission monochromator, rather than a reflection monochromator.
REFERENCES:
patent: 5082621 (1992-01-01), Wood
patent: 5167912 (1992-12-01), Wood
patent: 6415086 (2002-07-01), Hirsch
patent: 6521101 (2003-02-01), Skulina et al.
patent: 6863409 (2005-03-01), Cho et al.
patent: 6977954 (2005-12-01), Taylor et al.
patent: 7030397 (2006-04-01), Mezei et al.
patent: 2004/0136102 (2004-07-01), Cho et al.
patent: 2005/0220251 (2005-10-01), Yokoyama et al.
patent: 2007/0076837 (2007-04-01), Cho et al.
patent: 2008/0115338 (2008-05-01), Cho et al.
NPL01: Rafaja et al. (J. Phys. Condens. Matter 14 (2002) 5304-5314) “X-ray reflectivity of multilayers with non-continuous interface”.
NPL02: An et al. (Thin Solid Films 496 (2006) 571-575 “Structures of Co90Fe10/Cu multilayers determined by X-ray anomalous scattering measurements” .
Dhez et al., “Physics, Fabrication, and Applications of Multilayered Structures”, NATO ASI Series, pp. 311-313, Plenum Publishing Corporation, New York, US.
N.K. Plsehanov, “Algorithm for the real-structure design of neutron supermirrors”, Nuclear Instruments and Methods in Physics Research A 524, (2004), pp. 273-286, Russia.
Hayter et al., “Discrete Thin-Film Multilayer Design for x-ray and Neutron Supermirrors”, Solid State Division, Oak Ridge National Laboratory, pp. 35-41, (1989), TN, US.
Schelten et al., “Calculated Reflectives of Super-Mirrors”, Nuclear Instruments and Methods, pp. 287-294, (1979), Germany.
Sears, “Theory of Multilayer Neutron Monochromators”, pp. 601-608, Atomic Energy of Canada Limited, (1983) Ontario, Canada.
Saxena et al., “Mutlilayer Neutron Monochromators”, A33, pp. 805-813, Biology Department (1977), New York, US.
Cho Sang-Jin
Kim Hark-Rho
Lee Chang-Hee
So Ji-Yong
Bachman & LaPointe P.C.
Korea Atomic Energy Research Institute
Souw Bernard E
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