Neutron reflecting supermirror structure

Title: Neutron reflecting supermirror structure

Full Record
Other Related Research

Abstract

This patent describes an improved neutron reflecting supermirror. It comprises plurality of stacked sets of bilayers of high and low neutron scattering materials, the materials deposited upon a substrate, one layer of each of the sets of bilayers consisting of titanium and the second layer of each of the sets of bilayers consisting of an alloy including nickel and a microstructure enhancing element, carbon, interstitially present in the nickel alloy layer to modify the nickel crystal, wherein the microstructure enhancing element has a high neutron scattering potential.

Inventors:: Wood, J L

Publication Date:: 1992-01-21

OSTI Identifier:: 5410967

Patent Number(s):: US 5082621; A

Application Number:: PPN: US 7-566909

Assignee:: Ovonic Synthetic Materials Co., Inc., Troy, MI (United States)

Resource Type:: Patent

Resource Relation:: Patent File Date: 31 Jul 1990

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION; 36 MATERIALS SCIENCE; MIRRORS; MICROSTRUCTURE; NEUTRON DIFFRACTION; NICKEL ALLOYS; TITANIUM ALLOYS; AUGMENTATION; CARBON; CRYSTALS; LAYERS; MODIFICATIONS; SUBSTRATES; ALLOYS; COHERENT SCATTERING; CRYSTAL STRUCTURE; DIFFRACTION; ELEMENTS; NONMETALS; SCATTERING; 440800* - Miscellaneous Instrumentation- (1990-); 360102 - Metals & Alloys- Structure & Phase Studies

Citation Formats


                    Wood, J L. Neutron reflecting supermirror structure.  United States: N. p., 1992. 
        Web.

Copy to clipboard


                    Wood, J L. Neutron reflecting supermirror structure.  United States.

Copy to clipboard


                    Wood, J L. Tue .  
        "Neutron reflecting supermirror structure".  United States.

Copy to clipboard


                    
@article{osti_5410967,

  title        = {Neutron reflecting supermirror structure},

  author       = {Wood, J L},

  abstractNote = {This patent describes an improved neutron reflecting supermirror. It comprises plurality of stacked sets of bilayers of high and low neutron scattering materials, the materials deposited upon a substrate, one layer of each of the sets of bilayers consisting of titanium and the second layer of each of the sets of bilayers consisting of an alloy including nickel and a microstructure enhancing element, carbon, interstitially present in the nickel alloy layer to modify the nickel crystal, wherein the microstructure enhancing element has a high neutron scattering potential.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/5410967},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1992},

  month        = {1}

}

Copy to clipboard

Patent:

Search for the full text at the U.S. Patent and Trademark Office

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

Neutron reflecting supermirror structure

Patent Wood, James L

An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high incidence angles, i.e. up to four time the critical angle of standard neutron mirror structures. The reflection of neutrons striking the supermirror structure at a high critical angle provides enhanced neutron throughput, and hence more efficient and economical use of neutron sources. One layer of each set of bilayers consist of titanium, and the second layer of each set of bilayers consist of an alloy of nickelmore »« less
Full Text Available
Neutron reflecting supermirror structure

Patent Wood, James L.

An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high incidence angles, i.e. up to four time the critical angle of standard neutron mirror structures. The reflection of neutrons striking the supermirror structure at a high critical angle provides enhanced neutron throughput, and hence more efficient and economical use of neutron sources.
Full Text Available
Neutron reflecting supermirror structure

Patent Wood, J L

An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high incidence angles, i.e. up to four time the critical angle of standard neutron mirror structures. The reflection of neutrons striking the supermirror structure at a high critical angle provides enhanced neutron throughput, and hence more efficient and economical use of neutron sources. 2 figs.
Fe-W supermirrors for polarizing neutrons

Conference Majkrzak, C F ; Neumann, D A ; Copley, J R.D. ; ...

Polarized neutrons play an important role in scattering studies of condensed matter. Consequently, an efficient means of polarizing a neutron beam is very valuable. In addition to conventional, bulk single-crystal polarizers such as the Heusler alloy Cu{sub 2}MnAl, polarizing mirrors are often used for this purpose. Thin film bilayers of ferromagnetic Fe and nonmagnetic W have been deposited by sputtering on flat glass substreates according to a sequence of gradually varying bilayer thicknesses which in effect extends the critical angle for external mirror reflection for neutrons of one spin state when the Fe is magnetized in the plane of themore »« less
Full Text Available
Design of high-reflectivity supermirror structures

Conference Hater, J B ; Mook, H A

We present a new method of designing supermirrors, based on considering the contribution of each bilayer to the extinction in a given stack of bilayers, and derive and solve the discrete equations governing the choice of layer thicknesses. In the limit of zero layer thickness, the usual continuum result is recovered. The design, which can produce essentially perfect reflectivity over the entire supermirror range, also provides an objective physical mechanism for trading reflectivity to gain angular range. 17 refs., 3 figs.
Full Text Available

Similar Records