W/B sub 4 C multilayer x-ray mirrors

Journal Article · Sun Dec 01 00:00:00 EST 1991 · Optical Engineering; (United States)

DOI:https://doi.org/10.1117/12.56018· OSTI ID:7236858

Jankowski, A F; Makowiecki, D M ^[1]

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1. Lawrence Livermore National Lab., Livermore, CA (US)

One of the most important considerations in the design and manufacture of multilayer mirrors in material compatibility. Ideally, the materials selected should not chemically react or interdiffuse, thereby avoiding the formation of second phases, thus enhancing the smoothness of the layer interfaces and the reflectivity of the optic. The transparency of the spacing layers can therefore be augmented by materials of low absorption. Initial findings with B{sub 4}C layers indicate deposits that show smoother layering than those containing carbon, with the advantages of greater stability, lower absorption, and therefore greater reflectivity. In this paper manufacture, microstructure, and reflectivity of W/B{sub 4}C multilayers are discussed.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7236858
• Journal Information: Optical Engineering; (United States), Vol. 30:12; ISSN 0091-3286
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
36 MATERIALS SCIENCE
BORON CARBIDES
REFLECTIVITY
TUNGSTEN
X RADIATION
MIRRORS
ABSORPTION
CHEMICAL REACTIONS
DESIGN
DIFFUSION
FABRICATION
LAYERS
MATERIALS
MICROSTRUCTURE
STABILITY
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CRYSTAL STRUCTURE
ELECTROMAGNETIC RADIATION
ELEMENTS
IONIZING RADIATIONS
METALS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
SORPTION
SURFACE PROPERTIES
TRANSITION ELEMENTS
440600* - Optical Instrumentation- (1990-)
360104 - Metals & Alloys- Physical Properties
360606 - Other Materials- Physical Properties- (1992-)